Our Brands

DOFF cleaning for stone and masonry

DOFF cleaning uses low pressure superheated water to clean stone, brick and historic masonry. Removal of moss, black crusts, old paint and graffiti.

Accredited and Audited by

DOFF cleaning for stone and masonry

DOFF cleaning uses low pressure superheated water to clean stone, brick and historic masonry. Removal of moss, black crusts, old paint and graffiti.

Accredited and Audited by

DOFF cleaning for stone and masonry

DOFF cleaning uses low pressure superheated water to clean stone, brick and historic masonry. Removal of moss, black crusts, old paint and graffiti.

Accredited and Audited by

Cleaning to Historic England guidance

Listed buildings and conservation areas

IPAF and PASMA trained operatives

Cleaning to Historic England guidance

Listed buildings and conservation areas

IPAF and PASMA trained operatives

Cleaning to Historic England guidance

Listed buildings and conservation areas

IPAF and PASMA trained operatives

Cleaning to Historic England guidance

Listed buildings and conservation areas

IPAF and PASMA trained operatives

TRUSTED BY

TRUSTED BY

TRUSTED BY

TRUSTED BY

Our scope

What our DOFF cleaning covers

DOFF cleaning is superheated water cleaning of stone and masonry, which uses heat to soften the soiling so it comes away at low pressure. This allows soiling to be removed more gently than with high power pressure washing.

We clean sandstone, limestone, brick, terracotta and faience, concrete and cast stone, taking off moss and algae, the black crusts and soiling on older city-centre stone, old paint and coatings, and graffiti.

We start every job by reviewing the condition of the stone to assess whether DOFF cleaning is appropriate. Where the face is friable or spalling, we may suggest another cleaning method.

We work for building owners, property managers, main contractors and conservation specifiers, on listed buildings and in conservation areas.

Our operatives are IPAF and PASMA trained, and we work from MEWPs (Mobile Elevating Work Platforms), scaffolding and rope access, so we can work at height and access hard-to-reach areas.

We hold ISO 9001, certified through a UKAS-accredited body, plus SafeContractor and Constructionline Gold.

Need a building cleaned?

Get in touch and we'll discuss what you need.

I believe that their team on the day did an excellent job. They were professional and courteous, explained anything that I wanted to know, and left the area spotless. I was unable to find any fault in their work. I will definitely be returning next year.

John Byrne

General Manager, The Rowton Hotel

Our scope

What our DOFF cleaning covers

DOFF cleaning is superheated water cleaning of stone and masonry, which uses heat to soften the soiling so it comes away at low pressure. This allows soiling to be removed more gently than with high power pressure washing.

We clean sandstone, limestone, brick, terracotta and faience, concrete and cast stone, taking off moss and algae, the black crusts and soiling on older city-centre stone, old paint and coatings, and graffiti.

We start every job by reviewing the condition of the stone to assess whether DOFF cleaning is appropriate. Where the face is friable or spalling, we may suggest another cleaning method.

We work for building owners, property managers, main contractors and conservation specifiers, on listed buildings and in conservation areas.

Our operatives are IPAF and PASMA trained, and we work from MEWPs (Mobile Elevating Work Platforms), scaffolding and rope access, so we can work at height and access hard-to-reach areas.

We hold ISO 9001, certified through a UKAS-accredited body, plus SafeContractor and Constructionline Gold.

Need a building cleaned?

Get in touch and we'll discuss what you need.

I believe that their team on the day did an excellent job. They were professional and courteous, explained anything that I wanted to know, and left the area spotless. I was unable to find any fault in their work. I will definitely be returning next year.

John Byrne

General Manager, The Rowton Hotel

Our scope

What our DOFF cleaning covers

DOFF cleaning is superheated water cleaning of stone and masonry, which uses heat to soften the soiling so it comes away at low pressure. This allows soiling to be removed more gently than with high power pressure washing.

We clean sandstone, limestone, brick, terracotta and faience, concrete and cast stone, taking off moss and algae, the black crusts and soiling on older city-centre stone, old paint and coatings, and graffiti.

We start every job by reviewing the condition of the stone to assess whether DOFF cleaning is appropriate. Where the face is friable or spalling, we may suggest another cleaning method.

We work for building owners, property managers, main contractors and conservation specifiers, on listed buildings and in conservation areas.

Our operatives are IPAF and PASMA trained, and we work from MEWPs (Mobile Elevating Work Platforms), scaffolding and rope access, so we can work at height and access hard-to-reach areas.

We hold ISO 9001, certified through a UKAS-accredited body, plus SafeContractor and Constructionline Gold.

Need a building cleaned?

Get in touch and we'll discuss what you need.

I believe that their team on the day did an excellent job. They were professional and courteous, explained anything that I wanted to know, and left the area spotless. I was unable to find any fault in their work. I will definitely be returning next year.

John Byrne

General Manager, The Rowton Hotel

Our scope

What our DOFF cleaning covers

DOFF cleaning is superheated water cleaning of stone and masonry, which uses heat to soften the soiling so it comes away at low pressure. This allows soiling to be removed more gently than with high power pressure washing.

We clean sandstone, limestone, brick, terracotta and faience, concrete and cast stone, taking off moss and algae, the black crusts and soiling on older city-centre stone, old paint and coatings, and graffiti.

We start every job by reviewing the condition of the stone to assess whether DOFF cleaning is appropriate. Where the face is friable or spalling, we may suggest another cleaning method.

We work for building owners, property managers, main contractors and conservation specifiers, on listed buildings and in conservation areas.

Our operatives are IPAF and PASMA trained, and we work from MEWPs (Mobile Elevating Work Platforms), scaffolding and rope access, so we can work at height and access hard-to-reach areas.

We hold ISO 9001, certified through a UKAS-accredited body, plus SafeContractor and Constructionline Gold.

Need a building cleaned?

Get in touch and we'll discuss what you need.

I believe that their team on the day did an excellent job. They were professional and courteous, explained anything that I wanted to know, and left the area spotless. I was unable to find any fault in their work. I will definitely be returning next year.

John Byrne

General Manager, The Rowton Hotel

Why it matters

What goes wrong when stone is cleaned the wrong way

Grit blasting strips the weathered surface and accelerates stone decay

High pressure jet washing blasts out mortar joints, letting water get into the wall

Acid cleaning bleaches golden sandstone grey and rusts the iron in it

Chemicals left in the wall keep reacting, causing salts to bloom out over time

Methods and equipment

How we clean stone and masonry

Our teams are highly experienced in the methods required to clean historic stone and masonry. From matching the heat and the dwell time to the substrate, through to assessing the level of black crust that can be removed without damaging the stone face.

Equipment and access

Superheated water units, lances and adjustable nozzles

Scissor lifts, cherry pickers and spider lifts

Mobile access towers and podium steps

Rope access for hard to reach areas

Out-of-hours working where needed

How we clean

Up to 150 degrees at the nozzle, scaled down as needed

Low water volume, and low pressure on surface contact

Top-down working, to avoid run-off staining cleaned areas

Reduced heat on carved detail, arrises and friable areas

Glazing masked off and water kept out of open joints

Wet cleaning avoided when frost is forecast

Controls and records

Risk assessment and method statement before we start

The test patch photographed, with settings recorded

Before and after photographs of each area

Any area we advised against cleaning, and the reason

Heat, pressure and dwell settings logged for future work

The full record handed over for your building file

Why it matters

What goes wrong when stone is cleaned the wrong way

Grit blasting strips the weathered surface and accelerates stone decay

High pressure jet washing blasts out mortar joints, letting water get into the wall

Acid cleaning bleaches golden sandstone grey and rusts the iron in it

Chemicals left in the wall keep reacting, causing salts to bloom out over time

Methods and equipment

How we clean stone and masonry

Our teams are highly experienced in the methods required to clean historic stone and masonry. From matching the heat and the dwell time to the substrate, through to assessing the level of black crust that can be removed without damaging the stone face.

Equipment and access

Superheated water units, lances and adjustable nozzles

Scissor lifts, cherry pickers and spider lifts

Mobile access towers and podium steps

Rope access for hard to reach areas

Out-of-hours working where needed

How we clean

Up to 150 degrees at the nozzle, scaled down as needed

Low water volume, and low pressure on surface contact

Top-down working, to avoid run-off staining cleaned areas

Reduced heat on carved detail, arrises and friable areas

Glazing masked off and water kept out of open joints

Wet cleaning avoided when frost is forecast

Controls and records

Risk assessment and method statement before we start

The test patch photographed, with settings recorded

Before and after photographs of each area

Any area we advised against cleaning, and the reason

Heat, pressure and dwell settings logged for future work

The full record handed over for your building file

Why it matters

What goes wrong when stone is cleaned the wrong way

Grit blasting strips the weathered surface and accelerates stone decay

High pressure jet washing blasts out mortar joints, letting water get into the wall

Acid cleaning bleaches golden sandstone grey and rusts the iron in it

Chemicals left in the wall keep reacting, causing salts to bloom out over time

Methods and equipment

How we clean stone and masonry

Our teams are highly experienced in the methods required to clean historic stone and masonry. From matching the heat and the dwell time to the substrate, through to assessing the level of black crust that can be removed without damaging the stone face.

Equipment and access

Superheated water units, lances and adjustable nozzles

Scissor lifts, cherry pickers and spider lifts

Mobile access towers and podium steps

Rope access for hard to reach areas

Out-of-hours working where needed

How we clean

Up to 150 degrees at the nozzle, scaled down as needed

Low water volume, and low pressure on surface contact

Top-down working, to avoid run-off staining cleaned areas

Reduced heat on carved detail, arrises and friable areas

Glazing masked off and water kept out of open joints

Wet cleaning avoided when frost is forecast

Controls and records

Risk assessment and method statement before we start

The test patch photographed, with settings recorded

Before and after photographs of each area

Any area we advised against cleaning, and the reason

Heat, pressure and dwell settings logged for future work

The full record handed over for your building file

Why it matters

What goes wrong when stone is cleaned the wrong way

Grit blasting strips the weathered surface and accelerates stone decay

High pressure jet washing blasts out mortar joints, letting water get into the wall

Acid cleaning bleaches golden sandstone grey and rusts the iron in it

Chemicals left in the wall keep reacting, causing salts to bloom out over time

Methods and equipment

How we clean stone and masonry

Our teams are highly experienced in the methods required to clean historic stone and masonry. From matching the heat and the dwell time to the substrate, through to assessing the level of black crust that can be removed without damaging the stone face.

Equipment and access

Superheated water units, lances and adjustable nozzles

Scissor lifts, cherry pickers and spider lifts

Mobile access towers and podium steps

Rope access for hard to reach areas

Out-of-hours working where needed

How we clean

Up to 150 degrees at the nozzle, scaled down as needed

Low water volume, and low pressure on surface contact

Top-down working, to avoid run-off staining cleaned areas

Reduced heat on carved detail, arrises and friable areas

Glazing masked off and water kept out of open joints

Wet cleaning avoided when frost is forecast

Controls and records

Risk assessment and method statement before we start

The test patch photographed, with settings recorded

Before and after photographs of each area

Any area we advised against cleaning, and the reason

Heat, pressure and dwell settings logged for future work

The full record handed over for your building file

Why it matters

What goes wrong when stone is cleaned the wrong way

Grit blasting strips the weathered surface and accelerates stone decay

High pressure jet washing blasts out mortar joints, letting water get into the wall

Acid cleaning bleaches golden sandstone grey and rusts the iron in it

Chemicals left in the wall keep reacting, causing salts to bloom out over time

Methods and equipment

How we clean stone and masonry

Our teams are highly experienced in the methods required to clean historic stone and masonry. From matching the heat and the dwell time to the substrate, through to assessing the level of black crust that can be removed without damaging the stone face.

Equipment and access

Superheated water units, lances and adjustable nozzles

Scissor lifts, cherry pickers and spider lifts

Mobile access towers and podium steps

Rope access for hard to reach areas

Out-of-hours working where needed

How we clean

Up to 150 degrees at the nozzle, scaled down as needed

Low water volume, and low pressure on surface contact

Top-down working, to avoid run-off staining cleaned areas

Reduced heat on carved detail, arrises and friable areas

Glazing masked off and water kept out of open joints

Wet cleaning avoided when frost is forecast

Controls and records

Risk assessment and method statement before we start

The test patch photographed, with settings recorded

Before and after photographs of each area

Any area we advised against cleaning, and the reason

Heat, pressure and dwell settings logged for future work

The full record handed over for your building file

Why it matters

What goes wrong when stone is cleaned the wrong way

Grit blasting strips the weathered surface and accelerates stone decay

High pressure jet washing blasts out mortar joints, letting water get into the wall

Acid cleaning bleaches golden sandstone grey and rusts the iron in it

Chemicals left in the wall keep reacting, causing salts to bloom out over time

Methods and equipment

How we clean stone and masonry

Our teams are highly experienced in the methods required to clean historic stone and masonry. From matching the heat and the dwell time to the substrate, through to assessing the level of black crust that can be removed without damaging the stone face.

Equipment and access

Superheated water units, lances and adjustable nozzles

Scissor lifts, cherry pickers and spider lifts

Mobile access towers and podium steps

Rope access for hard to reach areas

Out-of-hours working where needed

How we clean

Up to 150 degrees at the nozzle, scaled down as needed

Low water volume, and low pressure on surface contact

Top-down working, to avoid run-off staining cleaned areas

Reduced heat on carved detail, arrises and friable areas

Glazing masked off and water kept out of open joints

Wet cleaning avoided when frost is forecast

Controls and records

Risk assessment and method statement before we start

The test patch photographed, with settings recorded

Before and after photographs of each area

Any area we advised against cleaning, and the reason

Heat, pressure and dwell settings logged for future work

The full record handed over for your building file

How we prove it

Standards, guidance and accreditations

These are the standards and the guidance that govern cleaning historic and commercial masonry, and what we do for each one.

BS 7913 and Historic England guidance

BS 7913 is the British Standard for conserving historic buildings, and Historic England publishes the technical guidance on cleaning historic masonry. We work in line with both.

Planning (Listed Buildings) Act 1990

Cleaning a listed building can need consent, under the Planning (Listed Buildings and Conservation Areas) Act 1990 in England and the Historic Environment (Wales) Act 2023 in Wales. Applying for it is the owner's responsibility and we work inside what the consent allows.

Work at Height Regulations 2005

The Work at Height Regulations 2005 apply wherever someone could fall a distance liable to cause injury, including at or below ground level, which applies to almost all facade work. We risk assess and send you the access plan to sign off before we start.

COSHH and Control of Lead at Work

The Control of Substances Hazardous to Health Regulations 2002 cover hazardous substances at work, and lead paint, common before 1992, falls under the Control of Lead at Work Regulations 2002. All products we may use alongside DOFF cleaning are assessed under COSHH and we test suspect coatings before we disturb them.

IPAF, PASMA and CITB

IPAF (International Powered Access Federation) and PASMA (Prefabricated Access Suppliers and Manufacturers Association) certify operators of powered access and mobile towers. We are an IPAF Approved Training Centre and a CITB Approved Training Organisation, so our operatives are trained and carded in-house.

ISO 9001, SSIP and contractor schemes

ISO 9001 is the international standard for quality management. SSIP (Safety Schemes in Procurement) is what a procurement team checks before letting a contractor on site. We are ISO 9001 certified through a body accredited by UKAS, Constructionline Gold registered and SafeContractor approved.

Our accreditations and certification

Site and access credentials

Need our risk assessments and method statements?

Ask and we'll send what you need.

How we prove it

Standards, guidance and accreditations

These are the standards and the guidance that govern cleaning historic and commercial masonry, and what we do for each one.

BS 7913 and Historic England guidance

BS 7913 is the British Standard for conserving historic buildings, and Historic England publishes the technical guidance on cleaning historic masonry. We work in line with both.

Planning (Listed Buildings) Act 1990

Cleaning a listed building can need consent, under the Planning (Listed Buildings and Conservation Areas) Act 1990 in England and the Historic Environment (Wales) Act 2023 in Wales. Applying for it is the owner's responsibility and we work inside what the consent allows.

Work at Height Regulations 2005

The Work at Height Regulations 2005 apply wherever someone could fall a distance liable to cause injury, including at or below ground level, which applies to almost all facade work. We risk assess and send you the access plan to sign off before we start.

COSHH and Control of Lead at Work

The Control of Substances Hazardous to Health Regulations 2002 cover hazardous substances at work, and lead paint, common before 1992, falls under the Control of Lead at Work Regulations 2002. All products we may use alongside DOFF cleaning are assessed under COSHH and we test suspect coatings before we disturb them.

IPAF, PASMA and CITB

IPAF (International Powered Access Federation) and PASMA (Prefabricated Access Suppliers and Manufacturers Association) certify operators of powered access and mobile towers. We are an IPAF Approved Training Centre and a CITB Approved Training Organisation, so our operatives are trained and carded in-house.

ISO 9001, SSIP and contractor schemes

ISO 9001 is the international standard for quality management. SSIP (Safety Schemes in Procurement) is what a procurement team checks before letting a contractor on site. We are ISO 9001 certified through a body accredited by UKAS, Constructionline Gold registered and SafeContractor approved.

Our accreditations and certification

Site and access credentials

Need our risk assessments and method statements?

Ask and we'll send what you need.

How we prove it

Standards, guidance and accreditations

These are the standards and the guidance that govern cleaning historic and commercial masonry, and what we do for each one.

BS 7913 and Historic England guidance

BS 7913 is the British Standard for conserving historic buildings, and Historic England publishes the technical guidance on cleaning historic masonry. We work in line with both.

Planning (Listed Buildings) Act 1990

Cleaning a listed building can need consent, under the Planning (Listed Buildings and Conservation Areas) Act 1990 in England and the Historic Environment (Wales) Act 2023 in Wales. Applying for it is the owner's responsibility and we work inside what the consent allows.

Work at Height Regulations 2005

The Work at Height Regulations 2005 apply wherever someone could fall a distance liable to cause injury, including at or below ground level, which applies to almost all facade work. We risk assess and send you the access plan to sign off before we start.

COSHH and Control of Lead at Work

The Control of Substances Hazardous to Health Regulations 2002 cover hazardous substances at work, and lead paint, common before 1992, falls under the Control of Lead at Work Regulations 2002. All products we may use alongside DOFF cleaning are assessed under COSHH and we test suspect coatings before we disturb them.

IPAF, PASMA and CITB

IPAF (International Powered Access Federation) and PASMA (Prefabricated Access Suppliers and Manufacturers Association) certify operators of powered access and mobile towers. We are an IPAF Approved Training Centre and a CITB Approved Training Organisation, so our operatives are trained and carded in-house.

ISO 9001, SSIP and contractor schemes

ISO 9001 is the international standard for quality management. SSIP (Safety Schemes in Procurement) is what a procurement team checks before letting a contractor on site. We are ISO 9001 certified through a body accredited by UKAS, Constructionline Gold registered and SafeContractor approved.

Our accreditations and certification

Site and access credentials

Need our risk assessments and method statements?

Ask and we'll send what you need.

How we prove it

Standards, guidance and accreditations

These are the standards and the guidance that govern cleaning historic and commercial masonry, and what we do for each one.

BS 7913 and Historic England guidance

BS 7913 is the British Standard for conserving historic buildings, and Historic England publishes the technical guidance on cleaning historic masonry. We work in line with both.

Planning (Listed Buildings) Act 1990

Cleaning a listed building can need consent, under the Planning (Listed Buildings and Conservation Areas) Act 1990 in England and the Historic Environment (Wales) Act 2023 in Wales. Applying for it is the owner's responsibility and we work inside what the consent allows.

Work at Height Regulations 2005

The Work at Height Regulations 2005 apply wherever someone could fall a distance liable to cause injury, including at or below ground level, which applies to almost all facade work. We risk assess and send you the access plan to sign off before we start.

COSHH and Control of Lead at Work

The Control of Substances Hazardous to Health Regulations 2002 cover hazardous substances at work, and lead paint, common before 1992, falls under the Control of Lead at Work Regulations 2002. All products we may use alongside DOFF cleaning are assessed under COSHH and we test suspect coatings before we disturb them.

IPAF, PASMA and CITB

IPAF (International Powered Access Federation) and PASMA (Prefabricated Access Suppliers and Manufacturers Association) certify operators of powered access and mobile towers. We are an IPAF Approved Training Centre and a CITB Approved Training Organisation, so our operatives are trained and carded in-house.

ISO 9001, SSIP and contractor schemes

ISO 9001 is the international standard for quality management. SSIP (Safety Schemes in Procurement) is what a procurement team checks before letting a contractor on site. We are ISO 9001 certified through a body accredited by UKAS, Constructionline Gold registered and SafeContractor approved.

Our accreditations and certification

Site and access credentials

Need our risk assessments and method statements?

Ask and we'll send what you need.

How we prove it

Standards, guidance and accreditations

These are the standards and the guidance that govern cleaning historic and commercial masonry, and what we do for each one.

BS 7913 and Historic England guidance

BS 7913 is the British Standard for conserving historic buildings, and Historic England publishes the technical guidance on cleaning historic masonry. We work in line with both.

Planning (Listed Buildings) Act 1990

Cleaning a listed building can need consent, under the Planning (Listed Buildings and Conservation Areas) Act 1990 in England and the Historic Environment (Wales) Act 2023 in Wales. Applying for it is the owner's responsibility and we work inside what the consent allows.

Work at Height Regulations 2005

The Work at Height Regulations 2005 apply wherever someone could fall a distance liable to cause injury, including at or below ground level, which applies to almost all facade work. We risk assess and send you the access plan to sign off before we start.

COSHH and Control of Lead at Work

The Control of Substances Hazardous to Health Regulations 2002 cover hazardous substances at work, and lead paint, common before 1992, falls under the Control of Lead at Work Regulations 2002. All products we may use alongside DOFF cleaning are assessed under COSHH and we test suspect coatings before we disturb them.

IPAF, PASMA and CITB

IPAF (International Powered Access Federation) and PASMA (Prefabricated Access Suppliers and Manufacturers Association) certify operators of powered access and mobile towers. We are an IPAF Approved Training Centre and a CITB Approved Training Organisation, so our operatives are trained and carded in-house.

ISO 9001, SSIP and contractor schemes

ISO 9001 is the international standard for quality management. SSIP (Safety Schemes in Procurement) is what a procurement team checks before letting a contractor on site. We are ISO 9001 certified through a body accredited by UKAS, Constructionline Gold registered and SafeContractor approved.

Our accreditations and certification

Site and access credentials

Need our risk assessments and method statements?

Ask and we'll send what you need.

Surfaces

Stone and masonry we clean

Every surface reacts differently to heat, pressure and water, so we adjust our method to suit each one. This allows us to remove the soiling without damaging the surface underneath.

Sandstone

Sandstone can vary from block to block in grain, mineral content and weathering, so areas of the same face can need different treatment to lift the soiling without damaging the stone.

Limestone

The crust on limestone forms out of deposits from the stone itself, so removing it removes a layer of the surface with it. This means special care is required to minimise visible change to the surface detail.

Brick

Victorian and Edwardian brickwork often has a hardened fire skin protecting the softer brick beneath, which can decay without it. We take care to remove soiling whilst preserving the brick face.

Terracotta and faience

The glaze on faience or hard skin on fired terracotta keeps water out of the clay behind it, so we set pressure, heat and water volume to preserve the protective layer when removing soiling.

Concrete and cast stone

Cast stone and the concrete detail on later frontages were finished to imitate tooled stone. The finish is often a thin facing over plain concrete, so we check it's sound before cleaning it and adjust heat and pressure to suit its condition.

Lime joints

Lime joints are designed to be permeable so that old walls can dry out through them. This also means that too much pressure can lead to erosion of the joints. So we clean the joints in between at a lower pressure than the stone itself.

Surfaces

Stone and masonry we clean

Every surface reacts differently to heat, pressure and water, so we adjust our method to suit each one. This allows us to remove the soiling without damaging the surface underneath.

Sandstone

Sandstone can vary from block to block in grain, mineral content and weathering, so areas of the same face can need different treatment to lift the soiling without damaging the stone.

Limestone

The crust on limestone forms out of deposits from the stone itself, so removing it removes a layer of the surface with it. This means special care is required to minimise visible change to the surface detail.

Brick

Victorian and Edwardian brickwork often has a hardened fire skin protecting the softer brick beneath, which can decay without it. We take care to remove soiling whilst preserving the brick face.

Terracotta and faience

The glaze on faience or hard skin on fired terracotta keeps water out of the clay behind it, so we set pressure, heat and water volume to preserve the protective layer when removing soiling.

Concrete and cast stone

Cast stone and the concrete detail on later frontages were finished to imitate tooled stone. The finish is often a thin facing over plain concrete, so we check it's sound before cleaning it and adjust heat and pressure to suit its condition.

Lime joints

Lime joints are designed to be permeable so that old walls can dry out through them. This also means that too much pressure can lead to erosion of the joints. So we clean the joints in between at a lower pressure than the stone itself.

Surfaces

Stone and masonry we clean

Every surface reacts differently to heat, pressure and water, so we adjust our method to suit each one. This allows us to remove the soiling without damaging the surface underneath.

Sandstone

Sandstone can vary from block to block in grain, mineral content and weathering, so areas of the same face can need different treatment to lift the soiling without damaging the stone.

Limestone

The crust on limestone forms out of deposits from the stone itself, so removing it removes a layer of the surface with it. This means special care is required to minimise visible change to the surface detail.

Brick

Victorian and Edwardian brickwork often has a hardened fire skin protecting the softer brick beneath, which can decay without it. We take care to remove soiling whilst preserving the brick face.

Terracotta and faience

The glaze on faience or hard skin on fired terracotta keeps water out of the clay behind it, so we set pressure, heat and water volume to preserve the protective layer when removing soiling.

Concrete and cast stone

Cast stone and the concrete detail on later frontages were finished to imitate tooled stone. The finish is often a thin facing over plain concrete, so we check it's sound before cleaning it and adjust heat and pressure to suit its condition.

Lime joints

Lime joints are designed to be permeable so that old walls can dry out through them. This also means that too much pressure can lead to erosion of the joints. So we clean the joints in between at a lower pressure than the stone itself.

Surfaces

Stone and masonry we clean

Every surface reacts differently to heat, pressure and water, so we adjust our method to suit each one. This allows us to remove the soiling without damaging the surface underneath.

Sandstone

Sandstone can vary from block to block in grain, mineral content and weathering, so areas of the same face can need different treatment to lift the soiling without damaging the stone.

Limestone

The crust on limestone forms out of deposits from the stone itself, so removing it removes a layer of the surface with it. This means special care is required to minimise visible change to the surface detail.

Brick

Victorian and Edwardian brickwork often has a hardened fire skin protecting the softer brick beneath, which can decay without it. We take care to remove soiling whilst preserving the brick face.

Terracotta and faience

The glaze on faience or hard skin on fired terracotta keeps water out of the clay behind it, so we set pressure, heat and water volume to preserve the protective layer when removing soiling.

Concrete and cast stone

Cast stone and the concrete detail on later frontages were finished to imitate tooled stone. The finish is often a thin facing over plain concrete, so we check it's sound before cleaning it and adjust heat and pressure to suit its condition.

Lime joints

Lime joints are designed to be permeable so that old walls can dry out through them. This also means that too much pressure can lead to erosion of the joints. So we clean the joints in between at a lower pressure than the stone itself.

Surfaces

Stone and masonry we clean

Every surface reacts differently to heat, pressure and water, so we adjust our method to suit each one. This allows us to remove the soiling without damaging the surface underneath.

Sandstone

Sandstone can vary from block to block in grain, mineral content and weathering, so areas of the same face can need different treatment to lift the soiling without damaging the stone.

Limestone

The crust on limestone forms out of deposits from the stone itself, so removing it removes a layer of the surface with it. This means special care is required to minimise visible change to the surface detail.

Brick

Victorian and Edwardian brickwork often has a hardened fire skin protecting the softer brick beneath, which can decay without it. We take care to remove soiling whilst preserving the brick face.

Terracotta and faience

The glaze on faience or hard skin on fired terracotta keeps water out of the clay behind it, so we set pressure, heat and water volume to preserve the protective layer when removing soiling.

Concrete and cast stone

Cast stone and the concrete detail on later frontages were finished to imitate tooled stone. The finish is often a thin facing over plain concrete, so we check it's sound before cleaning it and adjust heat and pressure to suit its condition.

Lime joints

Lime joints are designed to be permeable so that old walls can dry out through them. This also means that too much pressure can lead to erosion of the joints. So we clean the joints in between at a lower pressure than the stone itself.

Need stone or masonry cleaned on a listed building?

Get in touch and we'll discuss what you need.

Need stone or masonry cleaned on a listed building?

Get in touch and we'll discuss what you need.

Need stone or masonry cleaned on a listed building?

Get in touch and we'll discuss what you need.

Need stone or masonry cleaned on a listed building?

Get in touch and we'll discuss what you need.

Need stone or masonry cleaned on a listed building?

Get in touch and we'll discuss what you need.

How we do it

How your DOFF stone cleaning job will run

From the initial condition survey and quotation through to cleaning, inspection and sign-off, we manage each stage of the DOFF clean with your site team.

01

Survey, scope and quote

We review the stone and the access, carrying out a condition survey on site. We then provide a written scope of works and quotation, clearly setting out the areas of stonework included.

02

Planning and RAMS

We plan the clean around your building, and write risk assessments and method statements covering access, working hours and safety controls.

03

DOFF cleaning

We clean a test patch on a discreet area first, so you and your conservation officer can see the result on your own stone. We then clean in sections down the face, using the settings signed off on the test patch.

04

Verification and reporting

Once cleaning is complete, we go round the building with you for sign-off, then hand over before and after photographs and a record for your files.

How we do it

How your DOFF stone cleaning job will run

From the initial condition survey and quotation through to cleaning, inspection and sign-off, we manage each stage of the DOFF clean with your site team.

01

Survey, scope and quote

We review the stone and the access, carrying out a condition survey on site. We then provide a written scope of works and quotation, clearly setting out the areas of stonework included.

02

Planning and RAMS

We plan the clean around your building, and write risk assessments and method statements covering access, working hours and safety controls.

03

DOFF cleaning

We clean a test patch on a discreet area first, so you and your conservation officer can see the result on your own stone. We then clean in sections down the face, using the settings signed off on the test patch.

04

Verification and reporting

Once cleaning is complete, we go round the building with you for sign-off, then hand over before and after photographs and a record for your files.

How we do it

How your DOFF stone cleaning job will run

From the initial condition survey and quotation through to cleaning, inspection and sign-off, we manage each stage of the DOFF clean with your site team.

01

Survey, scope and quote

We review the stone and the access, carrying out a condition survey on site. We then provide a written scope of works and quotation, clearly setting out the areas of stonework included.

02

Planning and RAMS

We plan the clean around your building, and write risk assessments and method statements covering access, working hours and safety controls.

03

DOFF cleaning

We clean a test patch on a discreet area first, so you and your conservation officer can see the result on your own stone. We then clean in sections down the face, using the settings signed off on the test patch.

04

Verification and reporting

Once cleaning is complete, we go round the building with you for sign-off, then hand over before and after photographs and a record for your files.

How we do it

How your DOFF stone cleaning job will run

From the initial condition survey and quotation through to cleaning, inspection and sign-off, we manage each stage of the DOFF clean with your site team.

01

Survey, scope and quote

We review the stone and the access, carrying out a condition survey on site. We then provide a written scope of works and quotation, clearly setting out the areas of stonework included.

02

Planning and RAMS

We plan the clean around your building, and write risk assessments and method statements covering access, working hours and safety controls.

03

DOFF cleaning

We clean a test patch on a discreet area first, so you and your conservation officer can see the result on your own stone. We then clean in sections down the face, using the settings signed off on the test patch.

04

Verification and reporting

Once cleaning is complete, we go round the building with you for sign-off, then hand over before and after photographs and a record for your files.

How we do it

How your DOFF stone cleaning job will run

From the initial condition survey and quotation through to cleaning, inspection and sign-off, we manage each stage of the DOFF clean with your site team.

01

Survey, scope and quote

We review the stone and the access, carrying out a condition survey on site. We then provide a written scope of works and quotation, clearly setting out the areas of stonework included.

02

Planning and RAMS

We plan the clean around your building, and write risk assessments and method statements covering access, working hours and safety controls.

03

DOFF cleaning

We clean a test patch on a discreet area first, so you and your conservation officer can see the result on your own stone. We then clean in sections down the face, using the settings signed off on the test patch.

04

Verification and reporting

Once cleaning is complete, we go round the building with you for sign-off, then hand over before and after photographs and a record for your files.

How we do it

How your DOFF stone cleaning job will run

From the initial condition survey and quotation through to cleaning, inspection and sign-off, we manage each stage of the DOFF clean with your site team.

01

Survey, scope and quote

We review the stone and the access, carrying out a condition survey on site. We then provide a written scope of works and quotation, clearly setting out the areas of stonework included.

02

Planning and RAMS

We plan the clean around your building, and write risk assessments and method statements covering access, working hours and safety controls.

03

DOFF cleaning

We clean a test patch on a discreet area first, so you and your conservation officer can see the result on your own stone. We then clean in sections down the face, using the settings signed off on the test patch.

04

Verification and reporting

Once cleaning is complete, we go round the building with you for sign-off, then hand over before and after photographs and a record for your files.

Why CCS

The team behind the work

Since 2013 we have been cleaning commercial and industrial buildings across the UK, including their stone and masonry. We are based in Yorkshire, where sandstone is the dominant historic building stone, so our teams are well experienced with cleaning historic stonework.

We plan the job around your operation to keep disruption to a minimum. If that means evenings and weekends, we can do that for you.

We are an accredited IPAF and CITB training centre with our own health and safety manager, so our operatives take their access training with us.

We pride ourselves on quality and reliability, and our teams work with an enhanced level of consideration for our clients' sites and infrastructure.

If you are not sure whether DOFF cleaning is right for your building, please get in touch and we'll discuss your requirements with you.

IPAF

Approved training centre

CITB

Approved training organisation

ISO 9001

Certified by a UKAS-accredited body

Owned

Powered access fleet

Drew McGilvray

Managing Director, CCS Group

DOFF cleaning is a specialist task that needs skilled operators with specialist equipment, to reduce the risk of decay or degradation to surfaces unsuitable for other types of cleaning. Our teams have significant expertise and advanced equipment at their disposal, making us the right contractor for your works.

Why CCS

The team behind the work

Since 2013 we have been cleaning commercial and industrial buildings across the UK, including their stone and masonry. We are based in Yorkshire, where sandstone is the dominant historic building stone, so our teams are well experienced with cleaning historic stonework.

We plan the job around your operation to keep disruption to a minimum. If that means evenings and weekends, we can do that for you.

We are an accredited IPAF and CITB training centre with our own health and safety manager, so our operatives take their access training with us.

We pride ourselves on quality and reliability, and our teams work with an enhanced level of consideration for our clients' sites and infrastructure.

If you are not sure whether DOFF cleaning is right for your building, please get in touch and we'll discuss your requirements with you.

IPAF

Approved training centre

CITB

Approved training organisation

ISO 9001

Certified by a UKAS-accredited body

Owned

Powered access fleet

Drew McGilvray

Managing Director, CCS Group

DOFF cleaning is a specialist task that needs skilled operators with specialist equipment, to reduce the risk of decay or degradation to surfaces unsuitable for other types of cleaning. Our teams have significant expertise and advanced equipment at their disposal, making us the right contractor for your works.

Why CCS

The team behind the work

Since 2013 we have been cleaning commercial and industrial buildings across the UK, including their stone and masonry. We are based in Yorkshire, where sandstone is the dominant historic building stone, so our teams are well experienced with cleaning historic stonework.

We plan the job around your operation to keep disruption to a minimum. If that means evenings and weekends, we can do that for you.

We are an accredited IPAF and CITB training centre with our own health and safety manager, so our operatives take their access training with us.

We pride ourselves on quality and reliability, and our teams work with an enhanced level of consideration for our clients' sites and infrastructure.

If you are not sure whether DOFF cleaning is right for your building, please get in touch and we'll discuss your requirements with you.

IPAF

Approved training centre

CITB

Approved training organisation

ISO 9001

Certified by a UKAS-accredited body

Owned

Powered access fleet

Drew McGilvray

Managing Director, CCS Group

DOFF cleaning is a specialist task that needs skilled operators with specialist equipment, to reduce the risk of decay or degradation to surfaces unsuitable for other types of cleaning. Our teams have significant expertise and advanced equipment at their disposal, making us the right contractor for your works.

Why CCS

The team behind the work

Since 2013 we have been cleaning commercial and industrial buildings across the UK, including their stone and masonry. We are based in Yorkshire, where sandstone is the dominant historic building stone, so our teams are well experienced with cleaning historic stonework.

We plan the job around your operation to keep disruption to a minimum. If that means evenings and weekends, we can do that for you.

We are an accredited IPAF and CITB training centre with our own health and safety manager, so our operatives take their access training with us.

We pride ourselves on quality and reliability, and our teams work with an enhanced level of consideration for our clients' sites and infrastructure.

If you are not sure whether DOFF cleaning is right for your building, please get in touch and we'll discuss your requirements with you.

IPAF

Approved training centre

CITB

Approved training organisation

ISO 9001

Certified by a UKAS-accredited body

Owned

Powered access fleet

Drew McGilvray

Managing Director, CCS Group

DOFF cleaning is a specialist task that needs skilled operators with specialist equipment, to reduce the risk of decay or degradation to surfaces unsuitable for other types of cleaning. Our teams have significant expertise and advanced equipment at their disposal, making us the right contractor for your works.

Why building owners keep working with us

Why building owners keep working with us

Why building owners keep working with us

Why building owners keep working with us

Why building owners keep working with us

Why building owners keep working with us

5,000+

Nationwide jobs completed

60+

Staff members

12+

Years in business

UK & Ireland

Operating coverage

5,000+

Nationwide jobs completed

60+

Staff members

12+

Years in business

UK & Ireland

Operating coverage

5,000+

Nationwide jobs completed

60+

Staff members

12+

Years in business

UK & Ireland

Operating coverage

5,000+

Nationwide jobs completed

60+

Staff members

12+

Years in business

UK & Ireland

Operating coverage

5,000+

Nationwide jobs completed

60+

Staff members

12+

Years in business

UK & Ireland

Operating coverage

5,000+

Nationwide jobs completed

60+

Staff members

12+

Years in business

UK & Ireland

Operating coverage

Common questions

Questions we get about DOFF cleaning

What is DOFF cleaning?

Is DOFF cleaning safe on a listed building?

Does DOFF cleaning use chemicals or biocides?

Does DOFF cleaning on a listed building need listed building consent?

What surfaces does DOFF cleaning work on?

How long does DOFF cleaning a facade take?

What accreditations does CCS hold?

Still have questions?

Call us and we'll talk through the building.

Common questions

Questions we get about DOFF cleaning

What is DOFF cleaning?

Is DOFF cleaning safe on a listed building?

Does DOFF cleaning use chemicals or biocides?

Does DOFF cleaning on a listed building need listed building consent?

What surfaces does DOFF cleaning work on?

How long does DOFF cleaning a facade take?

What accreditations does CCS hold?

Still have questions?

Call us and we'll talk through the building.

Common questions

Questions we get about DOFF cleaning

What is DOFF cleaning?

Is DOFF cleaning safe on a listed building?

Does DOFF cleaning use chemicals or biocides?

Does DOFF cleaning on a listed building need listed building consent?

What surfaces does DOFF cleaning work on?

How long does DOFF cleaning a facade take?

What accreditations does CCS hold?

Still have questions?

Call us and we'll talk through the building.

Common questions

Questions we get about DOFF cleaning

What is DOFF cleaning?

Is DOFF cleaning safe on a listed building?

Does DOFF cleaning use chemicals or biocides?

Does DOFF cleaning on a listed building need listed building consent?

What surfaces does DOFF cleaning work on?

How long does DOFF cleaning a facade take?

What accreditations does CCS hold?

Still have questions?

Call us and we'll talk through the building.

Common questions

Questions we get about DOFF cleaning

What is DOFF cleaning?

Is DOFF cleaning safe on a listed building?

Does DOFF cleaning use chemicals or biocides?

Does DOFF cleaning on a listed building need listed building consent?

What surfaces does DOFF cleaning work on?

How long does DOFF cleaning a facade take?

What accreditations does CCS hold?

Still have questions?

Call us and we'll talk through the building.

Common questions

Questions we get about DOFF cleaning

What is DOFF cleaning?

Is DOFF cleaning safe on a listed building?

Does DOFF cleaning use chemicals or biocides?

Does DOFF cleaning on a listed building need listed building consent?

What surfaces does DOFF cleaning work on?

How long does DOFF cleaning a facade take?

What accreditations does CCS hold?

Still have questions?

Call us and we'll talk through the building.

You might also need

Other services that often pair with stone cleaning

Exterior cleaning

Facade cleaning across whole buildings.

Commercial decorating

Painting and coating once the masonry is clean.

High level cleaning

Roof level, windows and high internal structure.

Commercial cleaning

Day-to-day cleaning across the rest of your premises.

You might also need

Other services that often pair with stone cleaning

Exterior cleaning

Facade cleaning across whole buildings.

Commercial decorating

Painting and coating once the masonry is clean.

High level cleaning

Roof level, windows and high internal structure.

Commercial cleaning

Day-to-day cleaning across the rest of your premises.

You might also need

Other services that often pair with stone cleaning

Exterior cleaning

Facade cleaning across whole buildings.

Commercial decorating

Painting and coating once the masonry is clean.

High level cleaning

Roof level, windows and high internal structure.

Commercial cleaning

Day-to-day cleaning across the rest of your premises.

You might also need

Other services that often pair with stone cleaning

Exterior cleaning

Facade cleaning across whole buildings.

Commercial decorating

Painting and coating once the masonry is clean.

High level cleaning

Roof level, windows and high internal structure.

Commercial cleaning

Day-to-day cleaning across the rest of your premises.

You might also need

Other services that often pair with stone cleaning

Exterior cleaning

Facade cleaning across whole buildings.

Commercial decorating

Painting and coating once the masonry is clean.

High level cleaning

Roof level, windows and high internal structure.

Commercial cleaning

Day-to-day cleaning across the rest of your premises.

You might also need

Other services that often pair with stone cleaning

Exterior cleaning

Facade cleaning across whole buildings.

Commercial decorating

Painting and coating once the masonry is clean.

High level cleaning

Roof level, windows and high internal structure.

Commercial cleaning

Day-to-day cleaning across the rest of your premises.

Get started

Ready to talk?

Send us a few details about your site and one of the team will get back to you.

You'll speak to Harvey or one of the team.

Mon to Fri, 8am to 5pm.

Request a free quote

Get started

Ready to talk?

Send us a few details about your site and one of the team will get back to you.

You'll speak to Harvey or one of the team.

Mon to Fri, 8am to 5pm.

Request a free quote

Get started

Ready to talk?

Send us a few details about your site and one of the team will get back to you.

You'll speak to Harvey or one of the team.

Mon to Fri, 8am to 5pm.

Request a free quote

Get started

Ready to talk?

Send us a few details about your site and one of the team will get back to you.

You'll speak to Harvey or one of the team.

Mon to Fri, 8am to 5pm.

Request a free quote

Get started

Ready to talk?

Send us a few details about your site and one of the team will get back to you.

You'll speak to Harvey or one of the team.

Mon to Fri, 8am to 5pm.

Request a free quote

Get started

Ready to talk?

Send us a few details about your site and one of the team will get back to you.

You'll speak to Harvey or one of the team.

Mon to Fri, 8am to 5pm.

Request a free quote

© 2026 Cater-Clean Solutions Limited trading as CCS Group. Companies House 09424738. VAT GB206220265.

© 2026 Cater-Clean Solutions Limited trading as CCS Group. Companies House 09424738. VAT GB206220265.

© 2026 Cater-Clean Solutions Limited trading as CCS Group. Companies House 09424738. VAT GB206220265.

© 2026 Cater-Clean Solutions Limited trading as CCS Group. Companies House 09424738. VAT GB206220265.

© 2026 Cater-Clean Solutions Limited trading as CCS Group. Companies House 09424738. VAT GB206220265.

© 2026 Cater-Clean Solutions Limited trading as CCS Group. Companies House 09424738. VAT GB206220265.