


Quality is our promise, which is why we offer a 15-Year guarantee on all roof refurbishments, 25-year guarantee on new installs.
We understand the importance of maintaining the integrity of your roof. That’s why we offer a 15-year on roof refurbishment and a 25-year guarantee on new installations. Your property is then backed by (QANW) Quality Assured National Warranties ensuring that your property remains protected and secure for years to come.

Alcumus SafeContractor is a prominent UK-based accreditation scheme that assists businesses in demonstrating their commitment to health and safety, sustainability, and ethical practices. F1 GRP Roofing as a company are very proud members of this fantastic organisation.

Quality Assured National Warranties is a leading provider of Insurance-Backed Guarantee and Deposit Protection Insurance, offering consumer protection for homeowners undertaking home improvement projects. F1 GRP Roofing take great pride in being associated with QANW.
Why Choose a GRP Solution for Your Roof?
GRP forms a single, continuous membrane with no joints, significantly reducing the risk of leaks compared to felt or rubber systems.
A well-installed GRP roof can last +30 years or more with minimal maintenance, making it a cost-effective long-term solution.
GRP is resistant to UV radiation, frost, and extreme weather conditions. It doesn’t crack, warp, or corrode over time.
The smooth, sleek finish of GRP gives a contemporary look, ideal for visible flat roof areas, balconies, or extensions. It can also be coloured to match aesthetics.
Testimonials
F1 GRP Roofing completed the work on our logistics hub with minimal disruption to our operations. The finish is flawless and the durability speaks for itself.
From the first site visit to final handover, F1 GRP Roofing were professional, efficient and fully compliant with all safety protocols. Highly recommended.
The flat roof over our extension in Grantham was constantly leaking — until F1 GRP Roofing fixed it. It's been watertight ever since.
F1 GRP Roofing installed a new roof on our garage in Louth. Clean, tidy and really friendly lads. Wouldn't hesitate to use them again

Tony and his team relaid my leaking fibreglass roof after a previous poor installation by another company. Also gave a 15 year guarantee. Customer service from this company has been first class, any issues or concerns Tony gets back to you straight away and resolves them, nothing is too much trouble. Thank you guys

Amazing company with such high standards ,
We had a new store room built and these guys did the flat roof , facias , gutters and the gladding . Went above and beyond for us
The company even give a 15yr warranty which is brilliant
Highly recommend

Excellent service from start to finish. We had a flat roof fitted and new gutters & fascia’s looks great and a guarantee which gave me peace of mind. Totally recommend these guys


Tony and his team did a fantastic job on my mancave and garage roof. Love the GRP finish. Very professional service and recommend them with confidence .
Kerry and Carol Tully

I trusted this team to fully insulate and clad my large wooden snooker room including new fascia and guttering. The professionalism from 1st meeting discussing and measuring up to completion of job was second to none.
The job was started and completed to my 100% satisfaction.
The installers were very knowledgeable and kept my garden very tidy.
I would gladly recommend F1 GRP Roofing Ltd to anyone in fact I’ve got 2 more projects lined up for them.
Thankyou guys very happy customer

After struggling with a leak for a long time due to the poor gap between my conservatory roof and a flat roof I decided to contact Tony from F1 GRP Roofing to have a look and tell me my options. He arrived with 2 of his fitters promptly and after looking at my problem said the only way to cure the leak 100% was to Fibre Glass the Conservatory and flat roof all as one roof. When he explained the process and showed me pictures of the finished process I decided it was the only way to go. A date was arranged to have the job done and as before the 2 fitters turned up on time and quickly started the job. The conservatory had thick insulation installed on the roof covered with the Fibre Glass and to finish internally a PVC cladding was installed. What a transformation the conservatory no longer has the noise of rain clattering on the roof. In the cold weather it is loads warmer than when we had the Perspex roof and in summer it is now comfortable on a hot day rather than overpowering. I am so pleased we took Tony’s advice and wish to thank him and his fitters for a really fantastic job. Everywhere was cleaned up and all old material taken away, we can’t praise the job enough and would highly recommend F1 GRP Roofing for the high quality and expertise from start to finish. I have attached some photos of the finished installation.

We would highly recommend FI GRP Roofing for all your roofing requirements. They are true professionals and Tony ensures to oversee all work to see that customers are completely satisfied. A great company to do business with.

F1 GRP roofing did a fantastic job on my conservatory roof. I can’t thank them enough for their professionalism and would 100% recommend. Ben was lovely to deal with, helpful and trustworthy delivering me the result I was after. I also felt like the price was fair, affordable and reasonable. Thanks a lot

Great job by f1 roofing on my stables, competed job very swiftly and cleared away all of old roof, Also Fibre-glassed the front of my business at Banana Leaf on the sea front.
A durable, seamless, and fully waterproof flat roof solution.
Please feel free to get in touch with us
Unit 1, 20 Oliver Street
Cleethorpes, DN35 7QH