Endorsed by Which?

Damp Surveys Ltd

5.0

110 Reviews

Opening Hours
Today - 09:00–17:00
  • Monday 09:00–17:00
  • Tuesday 09:00–17:00
  • Wednesday 09:00–17:00
  • Thursday 09:00–17:00
  • Friday 09:00–17:00
  • Saturday - Closed
  • Sunday - Closed

About

Our mission is to solve the root cause(s) of damp and recommend long-term fixes with practical, evidence-led solutions — avoiding unnecessary and damaging treatments such as so-called "rising damp" treatments.

We built damp.ai, a free tool that diagnoses damp from symptoms, suggesting simple fixes, YouTube explainers, and monitoring tips.

If damp.ai doesn’t solve your problem, you can book an independent survey (£500 for a video damp survey, +£250 for a written PDF report) at https://DampSurveys.com/book. We accept online bookings only. We carry out around 20 surveys per month, with lead times of 3–8 weeks (last-minute slots may be available).

Our independence is your advantage. Unlike much of the industry — as highlighted by Which?: https://which.co.uk/news/2011/12/damp-proofing-companies-exposed-in-which-investigation-274087 — the damp-proofing industry is plagued by conflicts of interest and misleading advice.

What we do

  • Damp proofing and timber preservation services

    • Woodworm treatment
    • Timber treatment services
    • Injection damp courses
    • Condensation and humidification control
  • Surveyors

    • Building Surveyors

Customer reviews

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5.0
110 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
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Simon is a true damp expert
Customer Service
Quality
Value
If you've noticed damp in your property, I'd definitely suggest speaking to Simon before committing to any work. We had two damp-proofing companies come out to inspect our house and neither correctly identified the cause of the problem. Both recommended installing a damp proof course in our basement, with quotes ranging from £5,000 to £10,000. It turned out the real issue was drainage problems — a blocked pipe and some leaking pipework were allowing water to get underneath the floorboards. The damp proof course they suggested wouldn't have solved anything, and our floorboards would have continued to deteriorate. Simon took a very thorough and methodical approach and was able to identify the source quite quickly. He didn't jump to conclusions or try to sell us a particular solution. He simply investigated the issue, explained what he was finding, and told us what needed fixing. It was an education watching him work through the possible causes. We learned a lot about how damp behaves in older properties and feel much more confident about looking after the house going forward. In the end, Simon saved us a significant amount of money by helping us avoid unnecessary work. Because he's independent, we felt we could trust his advice. In contrast, the other companies seemed focused on selling their own services. I would highly recommend Simon to anyone trying to get to the bottom of a damp problem rather than just being sold a treatment.
Customer in Greater London Posted on 18/06/2026 , work completed 12/06/2026
Professional, methodical, and educational
Customer Service
Quality
Value
I contacted Simon at Damp Surveys Ltd to investigate some damp patches that had appeared in various locations above the skirting boards on my ground floor. From start to finish, the approach was very thorough and scientific. Rather than jumping to conclusions, a full systematic check was carried out. This included testing the water mains to completely rule out a hidden mains leak, alongside a detailed assessment of our ventilation system. What I appreciated most was the educational aspect of the service; I was given a clear explanation of how to use data sensors for ongoing monitoring and provided with detailed, actionable feedback. They also suggested a clear roadmap for follow-up investigations. The publicly available ai tools are also very useful.
Customer in Greater London Posted on 04/06/2026 , work completed 20/05/2026
Thorough and clear advice
Customer Service
Quality
Value
Simon came to survey our house a week ago, after three other professionals had tried to find the issues without success. We knew immediately that Simon was knowledgable, experienced and practical. He asked us lots of questions to explore all possible causes of our damp issues (wet rot), and has given us clear advice on how to resolve the issues. We are so pleased we opted to book in Simon - we also liked his approach of sharing knowledge and avoiding costly and unnecessary works that are often recommended. The AI tool on his website was actually great too - it gave an initial diagnosis which Simon confirmed in person and gave the follow up advice and assessment. Would highly recommend.
Customer in Greater London Posted on 03/06/2026 , work completed 22/05/2026
Survey and recommendations: very thorough
Customer Service
Quality
Value
Simon was really diligent - in explaining clearly what he was looking for, and measuring, and then in the follow up with a really detailed series of recommendations. Pretty comprehensive assessment, diagnosis and suggestions of improvements to make.
Customer in Greater London Posted on 06/03/2026 , work completed 24/02/2026
Damp Surveys Review
Customer Service
Quality
Value
Simon was friendly and thorough. He gave my wife and I ample space to explain our concerns regarding possible damp issues in our house. He dilgently investigated all possible causes of the problems, and took plenty of time at the end of the visit to relay his findings and, most importantly, to explain what steps we needed to take next in order to reduce the risk of further damp related problems in the future. He followed this up with an equally helpful written report and video. Communication with the Damp Survey's team prior to the visit had also been very good.
Customer in Greater London Posted on 27/01/2026 , work completed 19/01/2026
Amazing and detailed advice
Customer Service
Quality
Value
I moved into a property beset with mould and condensation problems. I had little understanding of the issues and how to solve it. After Simon's visit I have a full understanding and armed with his detailed advice, feel confident to tackle the problem. Simon is punctual, friendly and efficient. He has a wealth of knowledge, which he is keen his clients also understand, so he takes time to explain clearly. He also videos as he works so you can watch again, in case you miss or forget something. He thoroughly investigates each area using meters and thermal imaging, even checking the external walls and my flat roof. The suggestions made were clear, detailed and manageable. The best advice I’ve paid for. Absolutely worth it for his brilliant independent advice and the confidence and understanding I gained, and a clear action plan. Thank you Simon!
Customer in Greater London Posted on 22/01/2026 , work completed 16/01/2026
Re a Damp Survey
Customer Service
Quality
Value
Simon was very professional and polite. Everything was explained to me and solutions offered on the site visit. A hygrometer was left in situ for me to report the readings back. It was not a leaking pipe like I thought it might be. I was informed by a few friends that it may not be rising damp and that if I asked for 3 quotes, which I was going to do, they would all probably give me a quote for work that I may not need. As it happens I do not need that work and am taking measures to keep the situation in check. I am so grateful to have found Simon.
Customer in Greater London Posted on 14/12/2025 , work completed 20/11/2025
Very Highly Recommend Independent Damp Surveyor
Customer Service
Quality
Value
We instructed Simon to carry out a general survey to check for any possible damp as we were going to have a decoration planned . It was a seamless process to make an appointment and Simon arrived on time and communication was spot on. Simon explained to us the process of his survey and used various tools during his survey and was also providing us with simple reasons for eg.moisture reading , cold surface walls by using his tools. The survey was not rushed and Simon was very diligent and did not leave any area of the property un inspected ( internal and external) He is an independent surveyor and has various YouTube videos and is evident that his survey was very honest and thorough. He provided us with a very cost effective and sensible assessment and remidial measure to implement. We were very pleased by his survey and reccomended him without any hesitation.-Thank you
Customer in Greater London Posted on 08/11/2025 , work completed 28/10/2025
‘Damp Surveys’ an Edwardian terrace
Customer Service
Quality
Value
Simon arrived at the specified time and did a thorough and professional investigation into our concerns re: damp in the ground floor of our house. During the survey Simon explained carefully the problems that we needed to address and how to proceed. At all times, he was polite, friendly and engendered confidence. His feedback was prompt and immensely helpful; what we thought was rising damp is, in fact, much less costly. We are starting to implement his recommendations and are glad to have procured his services.
Customer in Greater London Posted on 10/10/2025 , work completed 24/09/2025
Damp survey guru
Customer Service
Quality
Value
I can highly recommend Damp Surveys Ltd and Simon. His knowledge and expertise were just what I needed to diagnose the causes of penetrating damp in my Victorian terrace. His thoroughness and clarity mean that I feel confident in the courses of action I can take - including different options for short to longer term damp protection and future prevention. His approach is comprehensive, looking at all instances and evidence of damp around the building. Simon provided a video recording and detailed summary of the survey, with clear explanations and recommendations. As Simon operates independently and does not sell any other services, I felt that his advice and recommendations are completely impartial. Thank you, Simon!
Customer in Greater London Posted on 31/08/2025 , work completed 27/08/2025