Top Detailed Reviews (Recent & Highly Positive)
1. Exceptional Workmanship & Integrity (5-star equivalent)
“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... His pricing was very competitive, and the quality of his work far exceeded expectations. Jason was courteous, professional, and respectful... What really stood out was his integrity. During the job, he identified additional work that needed doing... and he completed it without charging anything extra. ... I can wholeheartedly recommend Jason.”
— Customer in Hertfordshire (Dec 2025)
trustedtraders.which.co.uk
2. Comprehensive Building & Damp Work
“We employed Advance Construction to remove a dangerous chimney, rebuild our first floor front bay and do various other small building jobs. Jason clearly had experience... provided a clear description... Communications were good throughout. The work has generally been done to a high standard and we would recommend him to others.”
— Customer in Hertfordshire (Mar 2026)
trustedtraders.which.co.uk
3. Honest & Effective Damp Solution
“Jason is extremely knowledgeable and helpful. I had an issue with rising damp which multiple other damp companies failed to identify. Jason’s diagnosis and solution has solved our issue. Would highly recommend to anyone!”
— Customer in Hertfordshire (May 2025)
trustedtraders.which.co.uk
4. Long-Term Repeat Customer
“Jason and his son carried out a variety of damp work inside and outside our house, to a very high standard and at a competitive rate... Jason has completed work on our house a number of times over the past 10 years and I do not hesitate to recommend him to others. He’s very friendly, polite, punctual, works efficiently and clears up any mess.”
— Customer in Hertfordshire (Jan 2025)
trustedtraders.which.co.uk
5. Full House Damp & Ventilation
“Very professionally dealt with. Unlike some major damp proof companies Jason made a correct diagnosis... He came on the day planned and worked consistently until the job was satisfactorily completed... It was quite an involved job, but it was all completed to a very good standard and at the end I could not identify any damp whatsoever... We are more than pleased with the job and cost.”
— Verified reviewer, Checkatrade (2020, still highlighted)
checkatrade.com
6. Multiple Projects, Trustworthy
“Jason did all the above works [resealed chimney, guttering, flat roof, PIV unit, chimney breast cracks] at my place, and more. I can’t recommend him highly enough... He’s very honest, super reliable (I just left my keys out for him each day), sticks to budget, and gets the job done when he says he will. I would highly recommend him for all your building and ventilation needs.”
— Verified reviewer, AL5 (Checkatrade)
checkatrade.com
7. Survey & Advice
“I was extremely pleased with the visit by Jason Simmons... who undertook a full review and damp survey... He was friendly and polite, explained all of his findings openly and transparently... Would definitely recommend Jason and Advance Construction Solutions as they put my mind at rest.”
— Verified reviewer (Checkatrade)
checkatrade.com
Shorter Standout Testimonials (from company site)
- “Very prompt, professional and courteous. Fair price for work carried out. Highly recommend.” — St Albans (Which? Trusted Traders)
- advance-construction-solutions.co.uk
- “Good communication—clearly explained problem and work needed. Very happy—would recommend.” — Enfield
- “Excellent service. Professional workman who kept me advised... Went beyond and above the work agreed.” — Welwyn Garden City
- “Incredible service, reliable and professional. I would certainly recommend Advance Construction Solutions.” — West Hampstead
These reviews consistently praise Jason's honesty, professionalism, cleanliness, value for money, and effective results on damp, structural, and ventilation issues. The company maintains a 4.9/5 average with 100% recommendation rates on key platforms.
trustedtraders.which.co.uk
If you'd like more reviews, reviews from a specific year/platform, or contact details for a quote, let me know!
