Damp Proofing & Basement Waterproofing in London - City Waterproofing LTD [![City Waterproofing LTD](https://citywaterproofing.co.uk/img/logos/logo.svg)](https://citywaterproofing.co.uk)Family-run damp proofing and waterproofing specialists covering all of London. **300+ reviews** · 10-year guarantee [Get a Free Quote](https://citywaterproofing.co.uk/contact) [WhatsApp](https://wa.me/447475736061) Call Us [020 3633 2539](tel:02036332539) [07475 736061](tel:07475736061) Email Us Our Address 1 Orchard House, County Grove, London SE5 9LF Working Hours Mon to Sat: 8:00 to 17:00 · Sun: Closed Find us on [ ](https://www.facebook.com/people/AS-Damp-Proofing/100063326405101/ "Facebook") [ ](https://www.instagram.com/city_waterproofing_ltd "Instagram") [ ](https://www.checkatrade.com/trades/citywaterproofingltd "Check a Trade") [ ](https://www.ratedpeople.com/profile/armond-syla-building-services "Rated People") [ ](https://www.mybuilder.com/profile/city-waterproofing-ltd "MyBuilder") [ ](https://www.yell.com/biz/aands-damp-proofing-london-901760658/ "Yell") [ ](https://www.trustatrader.com/traders/a-s-damp-proofing-se5-and-se17- "Trust a Trader") [![City Waterproofing LTD](https://citywaterproofing.co.uk/img/logos/logo.svg)](https://citywaterproofing.co.uk) - [Home](https://citywaterproofing.co.uk) - [About Us](https://citywaterproofing.co.uk/about) - [Services](https://citywaterproofing.co.uk/services) - [Blog](https://citywaterproofing.co.uk/blog) - [Gallery](https://citywaterproofing.co.uk/gallery) - [Contact us](https://citywaterproofing.co.uk/contact) Welcome to City Waterproofing LTD - [07475736061](tel:07475736061) - [02036332539](tel:02036332539) - Follow Us: [ ](https://www.facebook.com/people/AS-Damp-Proofing/100063326405101/ "Facebook") [ ](https://www.instagram.com/city_waterproofing_ltd "Instagram") [ ](https://www.checkatrade.com/trades/citywaterproofingltd "Check a Trade") [ ](https://www.ratedpeople.com/profile/armond-syla-building-services "Rated People") [ ](https://www.mybuilder.com/profile/city-waterproofing-ltd "MyBuilder") [ ](https://www.yell.com/biz/aands-damp-proofing-london-901760658/ "Yell") [ ](https://www.trustatrader.com/traders/a-s-damp-proofing-se5-and-se17- "Trust a Trader") [![City Waterproofing LTD](https://citywaterproofing.co.uk/img/logos/logo.svg)](https://citywaterproofing.co.uk) - [Home](https://citywaterproofing.co.uk) - [About Us](https://citywaterproofing.co.uk/about) - [Services](https://citywaterproofing.co.uk/services) - [Blog](https://citywaterproofing.co.uk/blog) - [Gallery](https://citywaterproofing.co.uk/gallery) - [Contact us](https://citywaterproofing.co.uk/contact) [](#) [GET A QUOTE ](https://citywaterproofing.co.uk/contact) Damp Proofing & Waterproofing Specialists in London [ Insurance Backed Guarantee ](#insurance-guarantee)Stop Damp Before It Damages Your Home ===================================== Accurate diagnosis and lasting repairs for homes and businesses across London, with every job backed by our 10-year guarantee. [Get a Free Quote](https://citywaterproofing.co.uk/contact) [020 3633 2539](tel:02036332539) **300+ reviews** on Checkatrade, MyBuilder & more Basement & Cellar Waterproofing [ Insurance Backed Guarantee ](#insurance-guarantee)Turn a Damp Basement Into Dry, Usable Space ------------------------------------------- Cavity drain membranes and tanking systems installed by our own experienced team, from Victorian cellars to new-build basements. [Get a Free Quote](https://citywaterproofing.co.uk/contact) [020 3633 2539](tel:02036332539) **300+ reviews** on Checkatrade, MyBuilder & more Family-Run, Based in London [ Insurance Backed Guarantee ](#insurance-guarantee)15+ Years Protecting London Properties -------------------------------------- Honest advice, tidy workmanship and no unnecessary work. Proud PCA members with an optional Insurance Backed Guarantee. [Get a Free Quote](https://citywaterproofing.co.uk/contact) [020 3633 2539](tel:02036332539) **300+ reviews** on Checkatrade, MyBuilder & more [](#trust-strip) - PCA Member - Checkatrade Member - Delta Membrane Approved - Free Surveys & Quotes - Insurance Backed Guarantee 15+ Years Experience 900+ Projects Completed 300+ Customer Reviews 10 Yr Guarantee On Every Job Why City WaterproofingWork You Can Rely On, With Protection That Lasts ------------------------------------------------ We want you to feel confident long after we've packed up. That's why every job, whatever its size, is backed by our guarantee. ### 10-Year Guarantee Included on every service we provide, from a single wall to a full basement. ### Insurance Backed Guarantee Optional extra protection that stays in place for added peace of mind. [Get a Free Quote](https://citywaterproofing.co.uk/contact) Why Property Owners Trust UsBuilt on Experience, Backed by Guarantees ----------------------------------------- ### 15+ Years Experience Over fifteen years of specialist damp proofing and waterproofing across London, from Victorian terraces to modern basement conversions. ### 10-Year Guarantee Every job, whatever its size, comes with our 10-year guarantee. An optional Insurance Backed Guarantee adds protection even if we are not around. ### Family-Run & PCA Members A local London business, not a call centre. Members of the Property Care Association, so you get honest surveys and work done to industry standards. About UsExpert Damp Proofing for London Homes & Businesses ------------------------------------------------------ At City Waterproofing LTD, we find the real cause of damp and fix it properly, from rising damp and condensation to full basement waterproofing. Every job is carried out by our own experienced team and backed by a 10-year guarantee. - Free Surveys & Quotes - Qualified Experts - Our Own Team - 15+ Years Experience [More About Us](https://citywaterproofing.co.uk/about) ![](https://citywaterproofing.co.uk/img/normal/signature.png) Armond Syla Founder ![City Waterproofing team installing a cavity drain membrane](https://citywaterproofing.co.uk/img/normal/about_2_1.jpeg) ![Technician fitting a damp proof membrane to a basement wall](https://citywaterproofing.co.uk/img/normal/about_2_2.jpeg) 900+ Projects completed Our ServicesDamp Proofing & Waterproofing Services Across London -------------------------------------------------------- [View All Services ](https://citywaterproofing.co.uk/services) [ ![Basement Waterproofing in London](https://citywaterproofing.co.uk/img/services/basement-waterproofing-job.jpg) 01 ### Basement Waterproofing Cavity drain and tanking systems that keep basements dry and usable, whatever the weather. Learn more ](https://citywaterproofing.co.uk/services/basement-waterproofing) [ ![Structural Waterproofing in London](https://citywaterproofing.co.uk/img/services/structural-waterproofing-job.jpg) 02 ### Structural Waterproofing Protect new builds and existing structures from water ingress and long-term damage. Learn more ](https://citywaterproofing.co.uk/services/structural-waterproofing) [ ![Rising Damp Treatment in London](https://citywaterproofing.co.uk/img/services/rising-damp.jpg) 03 ### Rising Damp Treatment Stop moisture rising through your walls with a proper damp proof course. Learn more ](https://citywaterproofing.co.uk/services/rising-damp-treatment) [ ![Damp Proofing in London](https://citywaterproofing.co.uk/img/services/damp-proofing-job.jpg) 04 ### Damp Proofing Diagnosis and treatment for rising, penetrating and condensation damp. Learn more ](https://citywaterproofing.co.uk/services/damp-proofing) [ ![Cellar Waterproofing in London](https://citywaterproofing.co.uk/img/services/cellar-waterproofing-job.jpg) 05 ### Cellar Waterproofing Turn a damp cellar into dry storage or living space with a lasting system. Learn more ](https://citywaterproofing.co.uk/services/cellar-waterproofing) [ ![Dry Rot Solutions in London](https://citywaterproofing.co.uk/img/services/dry-rot-solutions.jpg) 06 ### Dry Rot Solutions Find the source, remove affected timber and treat to stop dry rot spreading. Learn more ](https://citywaterproofing.co.uk/services/dry-rot-solutions) [ ![Wet Rot Remediation in London](https://citywaterproofing.co.uk/img/services/wet-rot-remediation.jpg) 07 ### Wet Rot Remediation Repair decayed timber and fix the moisture problem that caused it. Learn more ](https://citywaterproofing.co.uk/services/wet-rot-remediation) [ ![Plastering in London](https://citywaterproofing.co.uk/img/services/plastering.jpg) 08 ### Plastering Salt-resistant replastering and smooth finishes after damp treatment. Learn more ](https://citywaterproofing.co.uk/services/plastering) Free QuoteDamp Problem? Let's Fix It Properly ----------------------------------- Tell us what you're seeing and we'll arrange a survey and a clear, free quote, with no hard sell. - 300+ reviews - 10-year guarantee - PCA members [Get a Free Quote](https://citywaterproofing.co.uk/contact) [ Or call us 020 3633 2539 ](tel:02036332539) Why Choose UsSecuring London Properties, One Project at a Time ------------------------------------------------- From a single damp wall to a full basement conversion, we diagnose the real cause, fix it properly and stand behind the work for years to come. - Effective Damp Solutions - Rigorous Quality Assurance - Experienced Professionals - 10-Year Guarantee **300+ customer reviews** across Checkatrade, MyBuilder, Rated People and TrustATrader [More About Us](https://citywaterproofing.co.uk/about) [ Call Us Any Time 020 3633 2539 ](tel:02036332539) ![Cavity drain membrane system installed across a London basement](https://citywaterproofing.co.uk/img/normal/why-basement-job.jpg) 900+ Projects completed across London Trusted Partners & CertificationsWorking with Industry Leaders ----------------------------- We install proven systems from leading manufacturers and work to Property Care Association standards. ![Delta Membranes logo](https://citywaterproofing.co.uk/img/brand/delta-membranes.png) Delta Membranes Cavity drain & membrane systems ![BiokilCrown logo](https://citywaterproofing.co.uk/img/brand/biokill-crown.png) BiokilCrown Damp & timber treatments ![Property Care Association logo](https://citywaterproofing.co.uk/img/brand/pca.png) Property Care Association Proud PCA members Work ProcessHow it works ------------ Before any work starts, we survey the property, find the real cause of the damp and agree a clear plan with you. [Get In Touch ](https://citywaterproofing.co.uk/contact) STEP -01 ### Damp Survey A thorough property survey with moisture readings to find the true cause of the damp, not just the symptoms. STEP -02 ### Solution Design A clear, tailored plan and quote for the right treatment, whether that is a DPC, tanking or a cavity drain system. STEP -03 ### Expert Installation Our own experienced team carries out the work cleanly and carefully, to manufacturer specifications. STEP -04 ### Guaranteed Results A final inspection and handover, backed by our 10-year guarantee and ongoing support. TestimonialsWhat Our Clients Say -------------------- **300+ reviews** on Checkatrade, MyBuilder, Rated People and TrustATrader Superb service from Armond and the team. Great communication, professional, polite and hard working across the team. They transformed a damp, dirty cellar into a dry, modern room. Very flexible and attentive to our requirements. I wouldn’t hesitate to recommend them. Thanks guys! Read more TC Tim Cooper Verified Google review The team have done a great job for us. They were respectful contractors. Did quality work and tidy up. Very happy. Would recommend. Thanks! Read more BH Bradley Hyland Verified Google review Armand and his team were fantastic. We just moved to London and needed to redo our basement quickly, in advance of our shipment arriving. They were really quick to support us and super respectful of our house too, sweeping up regularly and helping to keep it tidy which I really appreciated because we have young kids. His whole team were really kind and great to work with. Highly recommend Armand and his team. Read more RS Renee Smith Verified Google review Armond was a pleasure to work with. During an extension build we had some existing walls that needed work. These works were carried out at the perfect time alongside our extension project and were carried out to a high standard. Communication was perfect at every stage and photos were sent showing the process of works. Thank you! Read more TB Tom Brown Verified Google review Armond and the team were great from start to finish - extremely helpful, timely, polite and tidy, and the quality of the work was very good. Would recommend them to anyone looking for a waterproofing job doing. Read more AR Adam Reed Verified Google review Highly recommend City Waterproofing. The old, damp cellar of my tenanted ground floor flat in Brixton needed tanking as an urgent and last resort to deal with rodent infestation. Armond provided a prompt and very detailed quote, and assured me that he would handle all of my additional concerns at no extra cost. His team, led by Gerti, arrived on time, completed the job in less than a week, maintained regular contact with me throughout, and left the flat spotless. Nothing was too much trouble, and the cellar is transformed. Read more PD Polly Duval Verified Google review [![City Waterproofing LTD](https://citywaterproofing.co.uk/img/logos/logo-white.svg)](https://citywaterproofing.co.uk) Choose City Waterproofing LTD for trusted expertise, a strong reputation, and full accreditation. #### Phone Numbers [07475736061](tel:07475736061) [02036332539](tel:02036332539) #### Email Address #### Address Location 1 Orchard House, County Grove, London SE5 9LF ### Quick Links - [Home](https://citywaterproofing.co.uk) - [About Us](https://citywaterproofing.co.uk/about) - [Services](https://citywaterproofing.co.uk/services) - [Blog](https://citywaterproofing.co.uk/blog) - [Our Gallery](https://citywaterproofing.co.uk/gallery) - [Contact Us](https://citywaterproofing.co.uk/contact) - [Sitemap](https://citywaterproofing.co.uk/sitemap) ### Our Services - [Basement Waterproofing](https://citywaterproofing.co.uk/services/basement-waterproofing) - [Damp Proofing](https://citywaterproofing.co.uk/services/damp-proofing) - [Structural Waterproofing](https://citywaterproofing.co.uk/services/structural-waterproofing) - [Rising Damp Treatment](https://citywaterproofing.co.uk/services/rising-damp-treatment) - [Cellar Waterproofing](https://citywaterproofing.co.uk/services/cellar-waterproofing) - [Dry Rot Solutions](https://citywaterproofing.co.uk/services/dry-rot-solutions) - [Wet Rot Remediation](https://citywaterproofing.co.uk/services/wet-rot-remediation) - [Plastering](https://citywaterproofing.co.uk/services/plastering) ### Accreditations & Trust - PCA Member - [Checkatrade](https://www.checkatrade.com/trades/citywaterproofingltd) - [MyBuilder](https://www.mybuilder.com/profile/city-waterproofing-ltd) - [Rated People](https://www.ratedpeople.com/profile/armond-syla-building-services) - [TrustATrader](https://www.trustatrader.com/traders/a-s-damp-proofing-se5-and-se17-) - 10-Year Guarantee ### Areas We Cover - [Camberwell](https://citywaterproofing.co.uk/cellar-waterproofing-in-camberwell-london) - [Clapham](https://citywaterproofing.co.uk/basement-waterproofing-in-clapham) - [Pimlico](https://citywaterproofing.co.uk/basement-waterproofing-services-in-pimlico) - [Peckham](https://citywaterproofing.co.uk/basement-waterproofing-in-peckham) - [Balham](https://citywaterproofing.co.uk/basement-waterproofing-in-balham-city-waterproofing-ltd) - [Chelsea](https://citywaterproofing.co.uk/basement-waterproofing-services-in-chelsea) - [Victoria](https://citywaterproofing.co.uk/basement-waterproofing-services-in-victoria) - [Wandsworth](https://citywaterproofing.co.uk/basement-waterproofing-in-wandsworth) - [Wimbledon](https://citywaterproofing.co.uk/basement-waterproofing-wimbledon-family-run-service) - [Fulham](https://citywaterproofing.co.uk/basement-waterproofing-fulham-family-run-damp-care) - Vauxhall - [Battersea](https://citywaterproofing.co.uk/basement-waterproofing-in-battersea-sw11-riverside) Copyright 2026. All Rights Reserved. [ ](https://www.facebook.com/people/AS-Damp-Proofing/100063326405101/ "Facebook") [ ](https://www.instagram.com/city_waterproofing_ltd "Instagram") [ ](https://www.checkatrade.com/trades/citywaterproofingltd "Check a Trade") [ ](https://www.ratedpeople.com/profile/armond-syla-building-services "Rated People") [ ](https://www.mybuilder.com/profile/city-waterproofing-ltd "MyBuilder") [ ](https://www.yell.com/biz/aands-damp-proofing-london-901760658/ "Yell") [ ](https://www.trustatrader.com/traders/a-s-damp-proofing-se5-and-se17- "Trust a Trader") Developed by [BoldBytes](https://citywaterproofing.co.uk). [ ](https://wa.me/447475736061?text=Hi%2C+I%27d+like+to+enquire+about+your+damp+proofing+services.)