G C L Damp Proofing & Services


26 The Crescent West, Sunnyside, Rotherham, S66 3RE Directions

   Now closed Open today 08:00 - 20:00

Why Choose Us?

Expert Advice
Family Run Business
Years of Experience

Business overview

Family run damp proofing business

GCL Damp-Proofing are a family run firm established 40 years ago providing a wide range of damp proofing and plastering services to domestic and commercial customers. Based in Rotherham, the family serve customers across the whole of Yorkshire. The men and women of GCL are a highly trusted and trained team who offer the highest levels of customer service and cleanliness.

We give a 5 to 30 year guarantee depending on the service provided


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Products & Services

Above ground tanking

Below ground tanking

Black mould eradication

Cellar conversions

Chemical Injection

Condensation Control

Dry Lining

Federation of Master Builders Member

Mould Control


Structural stitching and wall ties

Timber floor replacements

Timber treatments

Wall Rendering

Wood Preservation


They don’t honour guarantees

Did work on my property in 2002 provided a transferable guarantee of 30 years .
The work they did has failed miserably. When contacted they sent some retired gentleman round to check guarantee etc he confirmed that the drawing was correct and that it was in fact his signature on the guarantee and said they were at fault and that they would correct the issues at the end of August 2022.
Then proceeded to sit on my stairs puffing on a vape without even asking if it was ok to smoke in my house .
He then told me he was going to send his grandsons round to see me . Really???
Spoke to the his daughter who now runs the business . What an absolute waste of time that was
If you want guaranteed work stay away from this company because they don’t honour their guarantees . Steer clear !
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Quality service!

Smashing Company! No issues what so ever! Would recommend!
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Professional workmanship

Becky, mo & fred were very professional, swift, friendly. Very happy with the work they have done on my walls and floor.
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Highly Recommend

Lovely Friendly people! Done an excellent job and very clean and tidy! Even did extra bits that weren’t originally quoted! Highly Recommended! Thanks Becky, Mo & Freddie
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Great family business, experts in basements.

I can highly recommend using GCL Damp Proofing. I recently moved to a house with a large basement that GCL had tanked 28 years ago. I contacted Dennis, the owner of this family business for advice about how to convert one of the basement rooms into a laundry room. I was concerned about the effect of warm wet clothes and a steam iron on the atmosphere. They recommended insulating/plastering the room to stop any condensation from occurring as warm wet air met cold external walls.
I thought Dennis quoted a very reasonable price for a 19m2 room with 2.4m ceilings.

He also noticed some patches on the walls of the other basement rooms where the tanking had begin to break down (after 28yrs) and agreed to repair these free of charge under the 30 year guarantee. This is fantastic service.

Becky, Mo & Fred carried out the work over 6 days. They work diligently, communicate well and were a delight to have in our house. They have expert knowledge about basements and damp control.
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