Endorsed by Which?

JPM Independent Surveyors


66 Reviews

Opening Hours
Today - 08:00–18:00
  • Monday 08:00–18:00
  • Tuesday 08:00–18:00
  • Wednesday 08:00–18:00
  • Thursday 08:00–18:00
  • Friday 08:00–18:00
  • Saturday 08:00–18:00
  • Sunday 08:00–18:00

What is a Which? Trusted Traders Islington Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Islington Trading Standards to create an Islington Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check.


I provide specialist damp investigation reports and timber reports with solutions to fix the problems. I also offer Spayed foam evaluation reports.

Dampness is often misdiagnosed by contractors.
Quite often the correct solution is simple and inexpensive.


I am not a contractor, I am a surveyor. I do not carry out remedial damp proofing or building works so you can rest assured that my reports are completley impartial.

Experienced qualified independent damp and timber surveyor.
: Dampness
: Condensation
: Mould
: Timber decay
: Woodworm
: Ventilation
: Spayed foam evaluation.

CSRT Qualified.
Property Care Association.
Expert Witness Institute.

20+ years experience, fully insured, I provide for home owners, tenants, estate agents, landlords, architects and property pre-purchase.

Covering areas of North London, East London and West Essex.

What we do

  • Damp proofing and timber preservation services

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

    • Mould investigation
    • Mould survey
  • Surveyors

    • Building Surveyors
    • Damp proofing surveyors
  • Builders

  • Specialised building trade contractors

  • More Services

    • independent
    • timber
    • rot
    • water damage

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

66 reviews
Customer Service
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Great guy, super helpful, recommended
Customer Service
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
Really happy and great service
Customer 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
Highly Recommend!
Customer Service
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
Great work - highly recommend
Customer Service
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
Great service
Customer 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
Very helpful report
Customer Service
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
Very helpful
Customer Service
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
Damp survey - great job
Customer Service
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
Excellent and reliable
Customer Service
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
Thorough and fast survey
Customer Service
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