Find My Heat Pump InstallerAdd your business
← Back to Leicester
Next Generation Insulation

Next Generation Insulation

5.0(30 reviews)See reviews ↓·Leicester

About the company

Next Generation Insulation Ltd is a roofing, insulation and spray foam removal company based in Leicester. It serves Birmingham, Coventry, Nottingham, Stafford, Derby and the wider Midlands. The founder is Dean Simpson, who brings over ten years of hands-on roofing experience. The company was founded in Leicester by Dean Simpson. Every job is carried out by time-served tradesmen. The back-office team adds over twenty years of operations and finance experience.

The company is fully insured and holds Public Liability Insurance. It holds an Environment Agency Waste Carrier Licence. It backs its work with insurance-backed guarantees. Roof replacements carry a 10 year insurance-backed guarantee. Every spray foam removal comes with a certificate and mortgage company pass guarantee. It has completed over 227 spray foam removal projects, including 66 combined removals and re-roofs, with a 100% lender acceptance record; completed cases have been accepted by major lenders including Santander, Nationwide and Barclays.

The company is in the final stages of full certification with TrustMark and is actively progressing formal memberships with both the Property Care Association (PCA) and the National Federation of Roofing Contractors (NFRC). It installs and repairs pitched, flat and specialist roofs, fits loft and roof insulation, and removes spray foam insulation for homes and commercial buildings.

What customers say

Based on genuine customer reviews

Lofts where spray foam had been installed in earlier years feature throughout the feedback for this Leicester firm, and correcting that legacy is the thread running through most accounts. A survey visit is commonly described as producing a plain explanation of the problem and of the options, with no pressure to proceed, and several accounts note that quotations arrived quickly and were itemised clearly. The fitting teams, including Andy, David, Grant and Brett, are praised for turning up when arranged, covering carpets and belongings, and clearing away the removed material along with general rubbish so that rooms were left tidy.

Dean is singled out for candid advice, notably in one case where he confirmed that existing foam had actually been applied correctly, while Kirsty and Luke are credited with answering technical questions and handling follow-up information. Larger removals are reported as finishing on schedule, and customers note that new insulation and boarding made lofts warmer and far more practical for storage. Damp diagnosis and roofing knowledge are mentioned as further strengths.

Roofing Service

Reviews

Reviews are taken from publicly available sources.

AP
Allan Pickard6 August 2026

My mum had some awful experiences with other loft companies, who kept letting her down and not carrying out the work properly, which ended up costing her even more money. From the moment I spoke to Dean, I felt completely reassured. He was at my mum’s house within the hour, identified the problems straight away, and sent clear video evidence explaining exactly what needed to be done. Dean’s professionalism, knowledge, and customer service were absolutely fantastic. He took the time to explain everything clearly and gave us confidence that the job would be done properly. I wouldn’t hesitate to recommend Next Generation Insulation to anyone looking for an honest, reliable, and professional company. 5 stars!

JM
Jill Meyer4 May 2026

Excellent service from the first call, the initial visit by Luke and the work done by Andy, David and Brett, Everything was completed as expected and the work was done in a clean and tidy way, meaning less stress for us. Thankyou, a great company , i can recommend .

MM
Maurilio Morello20 April 2026

Really happy with the service from Dean and the team. They removed all the old loft insulation, cleaned everything out properly, and left the space tidy. The guys were polite, professional, and easy to deal with from start to finish. Work was done efficiently with no hassle, and everything was explained clearly along the way. Would definitely recommend 👍

JS
Jim Saunderson1 April 2026

Dean arrived promptly for the survey appointment and provided a very full description of the work needed and the method of execution of the undertaking. Kirsty and Luke provided great assistance in providing the detailed information of the technical aspects of the work and the follow up information. Brett and Grant arrived on time and immediately prepared the property for the work to be undertaken. They worked extremely hard over the 2 days and ensured that the work was completed to a high standard and that the property was left immaculately clean and tidy. All aspects of the job were undertaken to the high standards described in the initial proposal provided by the company. My wife and I are extremely grateful to Brett and Grant who undertook to remove the heavy items from the loft and to return them to the loft on completion of the job - a great gesture to assist elderly customers and certainly not part of the job description. My sincere thanks to all at Next Generation for their excellent customer service.

JD
Julie Davidson9 March 2026

I have had my roof and insulation replaced by Next Generation and I cannot praise the team enough.Dean explained everything kept me updated on progress and was always available to answer any questions. A big thank you to Andy ,Jordan and Dave for an excellent job. They were professional, polite and friendly. Would highly recommend.

LC
Lottie C9 March 2026

Firstly is the most Dean approachable contractor I have ever worked with and I do for a living! When we reached out to him about the difficulty we were having making a sale with my mum‘s loft (spray foam insulation) he was honest and open and keen to help. Having to do everything remotely from 300 miles away was a real challenge, but Dean and his team did everything possible to make it work. The loft had closed cell insulation onto a non-breathable membrane. We had quotes from so many people and none of them were the same (some promising things that were cheaply priced around 3k but sounded unrealistic and only when pressed did we hear things like “50% success rate” and then bigger price tags emerging- up to 25k!) We were recommended Dean by a surveyor who had seen his Work previously and said it was the best cleanest Work he had seen and there were no problems getting a mortgage once he had done the work. Dean was the 1st to provide us with clear evidence of the testing he done. He showed us why we couldn’t have ice blasting without damaging the roof. He explained what was needed was a full removal and replacement - we went for a new roof with dark tiles as this had looked very good on neighbouring properties. His pricing was very fair and reasonable for the work he proposed. Dean answered so many calls with many questions and always dealt with things personally. They repaired anything that needed it along the way and did a fantastic job tidying up knowing we are trying to sell. The roof looks amazing and we felt genuinely supported every step of the way. The work was completed very fast and they were very popular with the neighbours, they started a new roof trend on the street- everybody wanted one! We are very hopeful that we get a sale quickly now this is done and will update this review following that with how it went with his guarantee and the surveyors etc. Overall Dean and his team were true lifesavers.

JT
Janice Turner9 March 2026

Grant and Brett from Next Generation Insulation did an excellent job insulating and boarding our loft. They were professional, efficient, and clearly took pride in their work. They explained the process well, kept everything tidy, and constantly showed me the process throughout completing the job to a high standard. The loft is now well insulated and the boarding has created a much more practical storage space. Really pleased with the result and would definitely recommend the company.

Insulation contractors in Leicester compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 4 businesses in this category in Leicester are compared.

RankProviderRatingReviewsOpen Sat.
1Next Generation Insulation (this page)★ 5,030No
2Pro Insulation UK★ 5,029Yes
3Loft Boarding specialist★ 4,862No
4Fosse Insulation Ltd★ 4,52No
Contact
+447702172608nextgenerationinsulation.co.ukUnit C, 1st Floor, Offices, 122 Bridge Rd, Leicester LE5 3QN
Working hours
Monday09:00–17:00
Tuesday09:00–17:00
Wednesday09:00–17:00
Thursday09:00–17:00
Friday09:00–17:00
SaturdayClosed
SundayClosed