Endorsed by Which?

Damp Surveys Ltd

5.0

106 Reviews

Opening Hours
Today -
  • 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

Why you can trust these reviews

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5.0
106 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
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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
Very pleased
Customer Service
Quality
Value
We contacted Simon after receiving a quote from a contractor for £6000 to carry out roof repairs to remedy a damp issue. Simon carried out a full, thorough survey of the house, was able to identify the actual cause of the problem, determine no building work was required and recommend various other methods to not only clear this up but deal with any damp issues in the future. We're already noticing results a few weeks later, cannot recommend highly enough.
Customer in Greater London Posted on 05/12/2024 , work completed 18/11/2024
Unhelpful
Found it impossible to contact this company by phone despite their listing a business telephone number and working hours. Requested a survey via their online form, only to be sent a cool brief email informing the surveyor is working outside of London and they cannot help. No we are booked until such a time with offering a booking at a later date etc, just a flat “computer says no… Goodbye!” attitude basically. Surely they shouldn’t be advertising if they are unable to accept any bookings at this time?
Customer in Greater London Posted on 02/10/2024 (Reviewer did not use service)
The trader replied (on 11/10/2024)
Dear Potential Customer, We are truly sorry to hear about how frustrating it must have been to try to book a survey at short notice and that the offered survey time was unacceptable to you. We are fortunate to have a lead time of 3–6 weeks, typically, which is why we developed damp.ai—a free artificial intelligence service designed to help as many customers as possible with often very troubling damp enquiries. This tool aims to assist those who think they have complex, often expensive damp problems, including rising damp, helping them avoid unnecessary chemical damp proofing treatments. Occasionally, there are last-minute opportunities, so please feel free to email us with your requests. Your feedback is invaluable to us as we strive to improve our service. Kind regards, Simon - damp surveyor
Damp survey
Customer Service
Quality
Value
Having spent several thousands on repointing an external wall to solve what seemed to be an invasive damp problem for it only to return we contacted Simon via Which Trusted traders . It has proved to be the best decision as he diagnosed the problem almost immediately and saved us a considerable amount of money and building upheaval. His service was thorough, informative and understandable. He followed up with video and written reports outlining the measures to deal with the issue. Highly recommend.
Customer in Greater London Posted on 26/09/2024 , work completed 12/09/2024
An independent expert with advice well worth paying for
Customer Service
Quality
Value
We have a few patches of what appear to be damp. Previously I have asked advice from builders, all of whom have come up with different ideas and have suggested different costly solutions. Given that none of them have agreed on a diagnosis or solution, I decided to seek the advice of an expert, and to pay for a damp survey from Damp Surveys Ltd, reasoning that the fee was a good investment in relation to the amount I might otherwise pay on a "repair" that was of no use. Simon visited, conducted a careful investigation of the house, interested not only the state of the walls but also our use of the property - do we use the extractor fan when cooking, how do we dry clothes, etc. Afterwards, he sent a long and detailed report, with recommendations which focused not on costly building work, but on ventilation and condensation. Yes, we're going to install new extractor fans and buy some dehumidifiers, and yes we intend to be more careful about how we dry clothes etc. But these costs are minor compared to the amounts we might have ended up paying. We feel this damp survey was a really good investment in the maintenance of our property, and it has set our minds at ease.
Customer in Greater London Posted on 26/09/2024 , work completed 26/09/2024