Long-term guarantess issued with our work

More than 20 years in business

Vetted and checked by our Trade Bodies

Debit and Credit Cards accepted here

Brilliant job on tanking a wall in my house. I would definitely recommend Cemplast who delivered a reliable, professional service. The job was done within the time specified and completed to a high standard.
Adele Hackett
Job well done, on time and as per quote. Well done Cemplast
Andy Hill
Jamie is easily contactable, very friendly, and was willing to match our cheapest quote. We went with him then as he gave a very good and professional impression.
Allen Cooper
Did a fantastic job in putting a DPC in ex-walls and have got them coming round again to do some more work too.would recommend they highly as very efficient and easily contactable.
Carl Marsden
Jamie was very easy to contact and was always available to answer questions, He was able to come to the house swiftly and was immediately able to diagnose the problem and explain what was needed to fix it, he then booked me in for the following week and the job ...
Chris Smith
The guys contacted me very quickly and were polite, fun and knowledgeable on the phone, which encouraged me to invite them round to quote. They came to see me, gave me great advice and slotted into my busy life. Although they left a bit of a mess (but it was ...
Julie Smith
Happy with the work. Very friendly, efficient and left everything in a clean state. The surveyor was very approachable and willing to help. Would recommend this company.
Andrew Lawrence
Cemplast were very friendly & definitely knows his stuff. Gave advice on other aspects of the house whilst he was here, which was greatly appreciated. House looks so much better than it did before. Would definitely use again.
Karen Berry
Couldn’t have asked for a better service. During a complicated house purchase jamie was always available and worked around our timescale. So much so he ended up doing the work on sat and Sunday! Would defiantly recommend!
Josh Senior

Who We Are


Damp Proofing, Structural Water Proofing and Basement Conversions Specialists In Leeds, Bradford and Throughout West Yorkshire

We are Triton approved contractors in all aspects of Damp and Condensation treatments. We now also offer Commercial Groundworks services throughout the UK including all major cities, such as Leeds, Newcastle, Manchester, Birmingham and London. Our damp proofing Leeds based services and structural repairs are backed with a guarantee. Check our gallery! Or GET IN TOUCH. More than a damp proofing company, as well as being skilled in all aspects of remedial work, we are experienced in property renovations and basement conversions. From structural property repairs and flood protection to damp proofing and basement tanking – We can provide the complete solution. Read our client testimonials from home owners in Leeds, Bradford, Harrogate, York, Huddersfield, Yeadon, Guiseley, Skipton and across the West Yorkshire region or browse through more detail of the services we offer. Health and Safety Policy
More About Us

damp proofing leeds



Home Owners & Self Builders

Looking to repair or refurbish your home? We offer all our damp services , remeidial and structural work along with renovation services to home owners and self builders throughout West Yorkshire.


We work alongside property developers, agencies and housing associations’ renovators – providing first class waterproofing, damp and structural work, as well as green roofing installation.


We work alongside national contractors and can operate in your work schedule, to your specification, or as a consulting partner to provide complete waterproofing, damp and green roofing solutions.


We consult with the project architects in order to ensure that our solutions fit in to the project to the correct specification, on time and within budget, whether its roofing, structural or renovation work.

Lets discuss your project requirements