Detailed and understandable damp and timber survey
Jason conducted a damp and timber survey after damp had been flagged by a homebuyer's survey. Jason's report was detailed and expertly written, but understandable and with plenty of explanatory notes and context. It was accompanied by unbiased recommendations and price estimates for steps to take to combat the issues (none of which seem over the top or wildly expensive), and useful suggestions of how to stay on top of things in the longer term. Communication throughout was excellent and despite an unavoidable last-minute change of date the report was still delivered within the original expected timeframe. Would thoroughly recommend Jason.
Customer in Greater London
Posted on 29/11/2025
, work completed 07/11/2025
Recommended
Efficient, professional and clear
Jason conducted a specialist damp survey for us after our home buyer's survey raised a few possible damp issues. He was quick to respond to our enquiry, was able to conduct the survey the following week and sent the report the next day. His role as an independent surveyor reassured us that we wouldn't be told extensive repairs were needed unnecessarily. His report was clear and came with estimated costs for any repairs needed, as well as recommended products to monitor damp. Overall, a great experience, thank you.
Customer in Greater London
Posted on 19/06/2025
, work completed 18/06/2025
Recommended
Damp in the kitchen
We employed Jason to carry out a damp survey to our kitchen. He was very thorough and professional and is clearly an expert in his field. He took photos of areas to illustrate the cause of the damp and to clarify what action needed to be taken. He was quickly able to identify the cause of the damp. His report was clear and informative using a system whereby he indicated which work needs to be carried out urgently. He is totally independent so has no investment in finding extra/unwanted work for suppliers to carry out. We felt reassured that all his recommendations were made according to what he found. He took samples of plaster away to ascertain the cause of the damp. In addition, he assessed other areas in the house and made recommendations for action to prevent damp arising in the future. I would highly recommend this company
Customer in Greater London
Posted on 19/01/2025
, work completed 13/01/2025
Recommended
Fast work, and follow up recommendation
Jason was very professional and gave a detailed report with recommendations for work to be completed. Responded to my follow up email with good advice
Customer in Greater London
Posted on 03/01/2025
, work completed 11/10/2023
Recommended
Damp and timber survey
Jason was great. He did a thorough job surveying the property, provided recommendations and costings, and advice for better prevention in future. The report was produced quickly and was clearly laid out. Highly recommend Jason!
Customer in Greater London
Posted on 26/08/2024
, work completed 21/08/2024
Recommended
Professional, independent full service - exactly what I was after
Jason Mahoney was professional, communicative and expert. His full-range investigation covered all damp, ventilation and considerations considerations. His report, provided a few days after the investigative visit was full of actionable recommendations and accompanied by a series of specific product recommendations. I chose JPM Surveyors because I wanted a third-party expert survey that was not linked to a contractor seeking to win business for follow-on works. That's precisely what I got. While not cheap, this felt like an investment worth making. Highly recommended.
Customer in Greater London
Posted on 27/07/2024
, work completed 12/06/2024
Recommended
Great guy, super helpful, recommended
Jason has helped me out with a damp survey and report twice now and I'd recommend him without hesitation. He's always on time, he's got some great tech and is very thorough with his surveys, explains everything really well, delivers the report quickly (if you need one), and is happy to answer extra questions afterwards. Highly recommended if you need someone knowledgeable, trustworthy and independent.
Customer in Greater London
Posted on 03/03/2024
, work completed 28/02/2024
Recommended
Really happy and great service
Jason came to our house to look at a few things we wanted an independent view of as I'm no expert in this area. Everything went very smoothly and Jason gave us lots of information and advice whilst he was here and talked through all the questions I had in detail. His excellent report came within a day, with really helpful recommendations for the types of work we need, expected prices and additional information about each type of work which means we will know what we are asking for when we get quotes. Thoroughly recommended.
Customer in Greater London
Posted on 10/02/2024
, work completed 01/02/2024
Recommended
Highly Recommend!
I recently hired Jason to conduct a damp survey on my parents' home, and I couldn't be more impressed with the service we received. Jason was extremely professional and thorough throughout the entire process. Not only did he take the time to explain his findings in detail, but he also provided comprehensive recommendations and backed them up with clear, well-documented photos. His expertise and attention to detail were evident, and we now have a clear plan of action to rectify the issues. I highly recommend Jason to anyone in need of a top-notch damp surveyor. Thank you for the outstanding service!
Customer in Greater London
Posted on 14/01/2024
, work completed 11/01/2024
Recommended
Great work - highly recommend
Jason visited our house today to carry out a full damp proof inspection. He arrived on time and got straight to work, he was extremely thorough and really great at explaining what he was doing and what everything he found meant. He listened to our concerns/areas we wanted special attention to and within a few hours produced a professional, easy to follow and detailed report. Highly recommend, great service.
Customer in Essex
Posted on 10/01/2024
, work completed 10/01/2024
Recommended
Great service
Jason came to do a damp and condensation survey. He inspected our flat thoroughly and explained to us very well the issues in flat. He then sent us the report promptly. The report was thorough and included independent recommendations on how to remedy the issues and estimates, exactly what we wanted. I highly recommend Jason.
Anne-Sophie in Greater London
Posted on 08/03/2023
, work completed 02/03/2023
Recommended
Very helpful report
Jason provided a thorough damp report which helped to narrow down the cause of a few known issues - and highlighted a few improvements we didn't know about! Definitely worth the money, and vital to do before conducting any major work.
Customer in Greater London
Posted on 28/02/2022
, work completed 25/02/2022
Recommended
Very helpful
Jason's report was very helpful and he is extremely knowledgeable. He explained all the issues with condensation and rising damp. Even after providing the report, I had some questions that he answered in a prompt manner. I highly suggest a damp survey in any damp affected properties and I truly recommend Jason, as he was very polite and willing.
Customer in Greater London
Posted on 19/01/2022
, work completed 20/12/2021
Recommended
Damp survey - great job
Jason did a great job for us. He dug around everywhere and came back with a very thorough report, recommendations of solutions and what bits of tech etc to buy and approximate costs for the work.
Customer in Greater London
Posted on 17/01/2022
, work completed 14/01/2022
Recommended
Excellent and reliable
Jason was recommended by somebody who had used his services. He was very good at communicating in difficult pandemic times. His inspection and report were done very efficiently and I could easily understand his assessment of the problem. The paperwork was sent promptly. Everything was very good indeed
Customer in Greater London
Posted on 13/01/2022
, work completed 11/01/2022
Recommended
Thorough and fast survey
This was an excellent service that I'd recommend to anyone. JPM was fast in responding and scheduling a survey, was very thorough and well informed. I really appreciated that the survey was completely independent.
Elizabeth in Greater London
Posted on 20/12/2021
, work completed 08/12/2021
Recommended
very thorough and helpful, detailed report and recommendations provided
I contacted JPM because of a problem with damp on the wall and ceiling of a room in my flat. I wanted to discover the true source/s of the problem before finding a builder or roofer to do the necessary repairs, as I was concerned about being ripped off with unnecessary repairs being undertaken. While the survey seemed a little expensive, it has proved to be worth every penny. JPM did a careful inspection of the whole flat, taking photos and using a moisture meter to detect problems. He also inspected the communal areas and external walls and went out onto the flat roof to take photos and check for problems. The following day he sent me a very clear and detailed report, including photographs and a detailed list of recommendations for repairs. In addition he added files advising on types of extractor fan, damp course and mortar etc. to be used in a repair. He was friendly and helpful and turned up on time. All in all, an absolutely excellent service!
Customer in Greater London
Posted on 14/12/2021
, work completed 10/12/2021
Recommended
Independent, professional, fast
My partner and I hired Jason for a damp survey on a house we're buying. Jason provided a thorough report on the same afternoon as his inspection, with easy-to-understand practical tips on how to mitigate any problems. We had a few follow-up questions on the report, which he answered promptly. Jason is keen to stress his independence - he's not tied to any damp-proofing firm, so he has no interest in selling any unnecessary products or damp-proofing. All in all, we'd recommend him for anyone looking for a professional, fast and non-invasive damp survey.
Customer in Greater London
Posted on 09/11/2021
, work completed 02/11/2021
Recommended
Comprehensive and thorough survey
We were very impressed by Jason's work. It was easy to arrange a visit, the date and time were kept to, the survey itself was extensive and Jason answered all of my questions with enough detail to make it clear what our options were without drowning in jargon. The report was produced quickly and was comprehensive, giving us a clear steer on the remedial work needed and which areas were of most importance.
Customer in Greater London
Posted on 01/11/2021
, work completed 21/10/2021
Recommended
Excellent pre-purchase damp survey
We were buying a Grade II listed Victorian house and were initially concerned about getting a pre-purchase damp survey as there are so many bad reports of operators in the industry. Of the people we contacted Jason stood out for his responsiveness and helpfulness, the survey was arranged and the report turned around quickly, it was clear and detailed with cost estimates for the work and extremely helpful recommendations. The price was also reasonable. We were very impressed and would highly recommend Jason to others.
Karl and Hannah in Greater London
Posted on 12/09/2021
, work completed 11/09/2021
Recommended
Efficient and thorough
Jason arrived on time and carried out a thorough investigation of the flat. He was friendly and explained some of the issues we had been concerned about while carrying out the survey. He supplied the full report on the same day and for such a great service, charged much less than we had been quoted by competitors.
Evie in Greater London
Posted on 03/09/2021
, work completed 02/08/2021
Recommended
Prompt and efficient attention
I required a building survey to be carried out on inadequate work done by a roofing contractor. I contacted Jason Mahoney on the recommendation of Which Trusted Traders. He replied promptly, fixed a date and provided me with a full scope of the proposed survey. On the day he arrived promptly, undertook a very thorough survey and a full and very detailed report with a comprehensive list of recommendations was provided the following morning. I can thoroughly recommend his services.
Eric in Greater London
Posted on 18/07/2021
, work completed 18/07/2021
Recommended
Brilliant service, fast report, thorough survey. Would highly recommend.
Jason was highly responsive and professional from our first contact, and liaised with our estate agent to enter the property. Despite being very busy at the moment, Jason performed the survey in a very short time frame for us and returned the report on the day of the survey. The report is thorough, and the advice was clear and reasonable. I would highly recommend Jason and couldn't have expected any better service.
Harvey in Oxfordshire
Posted on 16/07/2021
, work completed 10/07/2021
Recommended
Independent damp survey-- excellent service
Jason Mahoney responded very quickly to my request for an independent survey and delivered his report and recommendations within 24 hours of the survey. He provided a clear and comprehensive report with useful recommendations to address the dampness in my flat. I was impressed with his detailed explanations of the causes of the damp problems and how he considered the options for dealing with the problems carefully. His independence from commercial vested interests was invaluable in helping me to make balanced decisions about the best way forward.
Customer in Greater London
Posted on 05/07/2021
, work completed 03/07/2021
Recommended
Instrusive Damp Survey
Jason carried out an intrusive damp survey. He responded quickly to the request to do it, and carried it out efficiently. He was happy to explain what he was doing along the way. He produced the report in a couple of days, and it was very clear and well explained. He seems to be very well informed about this area, and we are grateful for his help.
Ed in Somerset
Posted on 29/06/2021
, work completed 15/06/2021
Recommended