My Review
We were satisfied and very impressed overall. Service provided.
Uche, Hertfordshire
Posted on 23/09/2016
, work completed 23/09/2016
Recommended
Excellent Job
Jason was punctual,professional and highly competent. He diagnosed and treated a damp problem which others have failed to rectify, at a very reasonable price. Very pleasant manner, would not hesitate to recommend.
Liane, Chingford
Posted on 11/12/2016
, work completed 11/12/2016
Recommended
Great job & very friendly
Great work, done quickly and cleanly. Very friendly.
Isabella, Hertfordshire
Posted on 28/01/2017
, work completed 28/01/2017
Recommended
Excellent service
Excellent job in time quoted. Jason is a very reliable and trustworthy trader to have in your home. Will use him again and recommend his services to family and friends.
Susan, Hertfordshire
Posted on 17/07/2017
, work completed 17/07/2017
Recommended
Great job!
Jason worked hard and did a great job. Very helpful & always on time. Highly recommend him.
Michelle, Hertfordshire
Posted on 14/07/2017
, work completed 14/07/2017
Recommended
Great job
Jason came on time, good communication beforehand. He worked out the problem and fixed it quickly and professionally and he cleaned up. Polite and friendly. Would definitely use him again.
Rebecca, London
Posted on 08/06/2018
, work completed 08/06/2018
Recommended
Prompt and professional
Very prompt, professional and courteous. Fair price for work carried out. Highly recommend Jason and Ryan and will use them again.
Jenny, Hertfordshire
Posted on 29/04/2019
, work completed 29/04/2019
Recommended
Top builder
A nice and tidy builder who explained my options, discussed how best I could save money and then did a totally brilliant job. He said a happy customer might want another job done and he is dead right. What a refreshing attitude to have a great job.
Jennifer, Hertfordshire
Posted on 25/03/2019
, work completed 25/03/2019
Recommended
Highly recommend Jason for all your building & ventilation needs!
I found Jason on this website and made contact with him after reading the reviews. He got back to me straight away, was courteous and super helpful, and came round to look at the work and give me a quote. Because he is understandably popular he couldn’t start my work for 3 months, but he gave me an exact date he could start the work and he stuck to it. He also quoted me for everything upfront, and always stuck to budget. He was very honest and told me if he didn’t think something was necessary, and also helpfully pointed out a few things I hadn’t noticed that were necessary. I left my house keys out for Jason each day (I was at work) as I knew I could trust him completely. He went above and beyond to kindly help me with a couple of extra things that popped up whilst he was at mine doing the agreed work. He knows about everything, particularly ventilation and damp. I cannot recommend him highly enough, and will be calling him again in the future for anything else I need! Top bloke, and great to chat to as well! Things he did for get included.. - resurfacing a flat roof (resin paint) - new guttering - new airbricks - installed a ventilation system - got scaffolding up and resealed a leaking chimney plus painted the side of the house with storm dry - sorted out a huge crack in my chimney breast & rendered it after too Many other jobs on my shopping list of issues too. Jason is great, drop him an email 👍
Lindsay in Hertfordshire
Posted on 04/03/2021
, work completed 01/02/2021
Recommended
Great Work
I recently had Jason carry out work at my home to install a damp proof course where none previously existed, and I couldn’t be more impressed with the results. From start to finish, Jason demonstrated exceptional knowledge and truly outstanding workmanship. He arrived promptly each day and worked exactly to the agreed schedule, which gave me complete confidence in the project. His pricing was very competitive, and the quality of his work far exceeded expectations. Jason was courteous, professional, and respectful throughout, always ensuring the house was cleaned and tidied at the end of each day. What really stood out was his integrity. During the job, he identified additional work that needed doing—something that wasn’t part of the original estimate—and he completed it without charging anything extra. That level of service is rare and hugely appreciated. I can wholeheartedly recommend Jason. His reliability, expertise, and commitment to doing the job properly make him an exceptional tradesman. I would not hesitate to hire him again.
Customer in Hertfordshire
Posted on 01/12/2025
, work completed 28/11/2025
Recommended
A very smooth experience!
Jason visited in late October and undertook the damp proofing work in early December. Turned up when he said he would, was courteous and polite. Did a very professional job - explained what he was doing and why. Was neat, clean and tidy. Apologised that he couldn’t get the perfect plaster finish due to the cramped space and the presence of pipes. When I looked - he’d done a fantastic job. Highly recommend Jason and a pleasure to do business with.
Customer in Buckinghamshire
Posted on 07/01/2025
, work completed 03/12/2024
Recommended
Problem solved
Really pleased that this cause of the damp walls was found and repaired. Excellent service.
Christina, Hertfordshire
Posted on 19/04/2016
, work completed 19/04/2016
Recommended
Great job.
First class advice about our damp issues and well executed. Very clean and tidy. Jason and Harrison were a pleasure to have working on our home. Highly recommend.
Hannah, Hertfordshire
Posted on 17/01/2020
, work completed 17/01/2020
Recommended
Great work at a reasonable price
Jason and team recently installed an injected damp course and repointed some brickwork at my new home. Jason was courteous, professional, and did a great job. Jason took the time to take a through set of photos and videos of his work and even added some extra touches to ensure the house was fully watertight during his visit. What stuck out to me most was his genuine care and honesty, which can be in short supply these days. I would thoroughly recommend him to anyone and look forward to benefitting from his expertise again in the future.
Customer in Greater London
Posted on 11/01/2025
, work completed 20/12/2024
Recommended
Great Job
We had two chimney breasts removed and the associated re-plastering etc. Jason was very friendly and professional. The work was completed to a high standard and all aspects were explained throughout the access. We would recommend this company to others.
June, Hertfordshire
Posted on 07/10/2016
, work completed 07/10/2016
Recommended
Great job
Good service, Will use Advance again.
Katie, Hertfordshire
Posted on 15/01/2016
, work completed 15/01/2016
Recommended
Friendly & flexible
Good workmanship, friendly, flexible to picking up other jobs that needed doing.
Andrew, Hertfordshire
Posted on 06/02/2017
, work completed 06/02/2017
Recommended
Work carried out as explained
Well mannered and friendly. Clearly explained the work to be done and invited inspection at various stages. Satisfactory outcome.
Edwin, Hertfordshire
Posted on 25/03/2019
, work completed 25/03/2019
Recommended
Ventilation for a slightly damp cellar
I had a cellar that was a little to damp for our liking. Jason first gave a phone consultation and suggested one approach. Unfortunately that approach didn't work due to the setup of the house so he suggested an alternate plan to install two telescopic ventilators. These were installed within a couple of weeks at a very reasonable price. He and his son are great and I would highly recommend them.
Customer in Greater London
Posted on 25/08/2025
, work completed 22/08/2025
Recommended
Fantastic job
Work was carried out on time and to a high standard. We were extremely impressed with all work and professionalism and cleanliness of "Advance Construction". Would definitely highly recommend.
Lauren, Hertfordshire
Posted on 05/05/2017
, work completed 05/05/2017
Recommended
Reliable Competent
Very helpful workers. Followed my wishes, arrived promptly and did not waste anytime.
Ruth, Hertfordshire
Posted on 10/11/2016
, work completed 10/11/2016
Recommended
Brilliant
Very prompt to start work at the time arranged, pleased with work done.
Olga, Middlesex
Posted on 22/06/2016
, work completed 22/06/2016
Recommended
My review
Robert, Hertfordshire
Posted on 08/08/2017
, work completed 08/08/2017
Recommended
My Review
Attended as requested and agreed. Kept to agreed quote, courteous. Willing to discuss all options etc.
Which? Trusted Traders Consumer
Posted on 28/06/2016
, work completed 28/06/2016
Recommended
Prompt and professional
Jason is very knowledgeable. He kept us informed about when he could come and came punctually. He worked very neatly.
Myra, Hertfordshire
Posted on 17/12/2016
, work completed 17/12/2016
Recommended