Damp Proofing London
Expert damp proofing specialists for London's Victorian and Edwardian properties. Rising damp, penetrating damp, condensation, dry rot and woodworm, surveyed, diagnosed and treated correctly.
Book a Damp Survey
Same day response, no obligation
0300 373 7251Survey fee is fixed and deducted from the works if you go ahead. Written 10 year guarantee.
Damp in London Properties
London's housing stock is unusually prone to damp. The Victorian and Edwardian terraces that dominate inner London were built with solid brick walls and no cavity, and the original damp proof courses, where they exist at all, are now well over a century old.
Add the widespread conversion of houses into flats, lower ground and basement rooms sitting below external ground level, and party walls shared between properties, and you have ideal conditions for rising damp, penetrating damp and condensation across the capital.
Because these problems look alike but need completely different treatments, the costly mistake is guessing. We establish the real cause with a professional survey before recommending anything, so you only pay for the work your property actually needs.
Damp Proofing Services Across London
The complete range of damp and timber services for London's residential and commercial properties. Every project begins with a survey and an accurate diagnosis, because we never recommend treatment without first establishing the cause.
Rising Damp Treatment
Chemical injection damp proof course to BS 6576, plaster strip and salt inhibiting render. The correct fix for failed or absent DPCs in London's period properties.
Learn more →Penetrating Damp
Water ingress through solid walls, rooflines, chimney flashings and window reveals, particularly common in London's Victorian solid brick housing. Traced and treated.
Learn more →Condensation & Mould
PIV ventilation, mould treatment and long term condensation control, common in converted flats and basement level rooms across London.
Learn more →Damp Surveys London
Moisture profiling, salt analysis and written diagnostic reports. Suitable for pre-purchase surveys, conveyancing and resolving a homebuyer report flag.
Learn more →Dry Rot Treatment
Identification, containment and fungicidal treatment of Serpula lacrymans. Dry rot in London period properties needs specialist diagnosis as it spreads fast.
Learn more →Woodworm Treatment
Survey and treatment of woodworm in floor joists, roof timbers and furniture, with a written certificate on completion, often required for property sales.
Learn more →
Signs of Damp in London Homes
If you have noticed any of these, it is worth a professional look before the problem spreads:
Important: treating rising damp as condensation, or the other way around, is one of the most common and costly mistakes made by non specialists. A professional survey is essential before any treatment is recommended.
How We Work, Survey to Completion
Professional damp survey
A qualified specialist surveys your property with a calibrated moisture meter. Where rising damp is suspected we take plaster samples for salt analysis to confirm it, separating rising damp from condensation or penetrating damp.
Written report and diagnosis
You receive a written report with what was found, the diagnosis and the recommended treatment. If the problem is less serious than another company quoted, we will tell you that too.
Fixed price in your report
A fixed price is included in your report. No day rates and no hidden extras, so you know the full cost before deciding. The survey fee is deducted from the works if you proceed.
Treatment and installation
Our trained technicians carry out all treatment to current British Standards, BS 6576 for chemical DPC injection and BS 8102 for any waterproofing.
Written guarantee
Every installation comes with a written 10 year guarantee, transferable on property sale and accepted by solicitors and mortgage lenders.
What Our London Customers Say
Genuine reviews from Advanced Damp customers.
"I had two other damp surveys on my home and they were only interested in concluding that it was rising damp so that they could charge me a lot to inject into my walls. Matt on the other hand has proper experience and techniques with thermal imaging, and he understood what the issues really were. He gave holistic advice on how to really solve the problem, and at much less cost."
"I scheduled a pre-purchase damp survey with Advanced Damp on the advice of a Level 3 building survey. The quality of the survey, performed by Lionel, was excellent and the report was very detailed with photos throughout. The customer service was also very attentive."
"Great company to deal with and very professional. I received some excellent advice after calling them in to do a survey for me. Extremely thorough and the advice I received made sense, would definitely use them again and recommend them for any damp issues."
Related Damp Proofing Services
Whatever the diagnosis, we have the specialist team and accreditations to put it right. Explore our related services and resources:
London Boroughs We Cover for Damp Proofing
We cover every London borough from our London office at 45 Fitzroy Street, W1T 6EB, with a same day response. Areas include:
Frequently Asked Questions, Damp Proofing London
How much does damp proofing cost in London?
What are the signs of damp in a London property?
Do you cover all London boroughs?
Do you carry out pre-purchase damp surveys in London?
How long does damp proofing take in London?
Ready to Sort Your Damp Problem?
Same day response, all London boroughs covered. Survey, written report and fixed price, with no obligation to proceed.
Last updated June 2026 · Advanced Damp Ltd · London office, 45 Fitzroy Street, W1T 6EB · 0300 373 7251