Fibreglass Roofs
Modern GRP fibreglass roofing solutions — completely seamless, water-tight, and built to last 30+ years with sleek, clean aesthetics ideal for flat roof areas.
- Professional Service
Expert Fibreglass Roof Installation in London
At Westminster ProGuard Roofing, we specialise in installing premium GRP (Glass Reinforced Plastic) fibreglass roofs for residential extensions, garages, balconies, and commercial buildings. Completely seamless and 100% water-tight, fibreglass roofing offers superior durability and a modern clean finish.
Unlike traditional felt or rubber roofing, GRP fibreglass forms one continuous waterproof layer — eliminating joints where leaks can occur. Our experienced team uses the highest quality resins and topcoats to deliver fibreglass roofs that look great and protect your property for decades.
“GRP fibreglass roofing is seamless and joint-free — eliminating 90% of leak points common in traditional flat roofs, with a lifespan of 30+ years.”
What's Included in Our Service
Free Inspection
Detailed survey and assessment of your roof structure.
Premium GRP
Top-grade glass reinforced plastic and quality resins.
Seamless Finish
No joints means no leak points — 100% watertight.
UV-Resistant Topcoat
Long-lasting finish that resists fading and weather.
30-Year Lifespan
One of the longest-lasting flat roofing materials available.
20-Year Guarantee
Industry-leading workmanship warranty included.
- FAQ's
Frequently Asked Questions
Got questions about our fibreglass roofing services? Here are answers to some of the most common queries from our customers. Can’t find what you’re looking for? Get in touch with our team.
How long does a fibreglass roof last?
A professionally installed GRP fibreglass roof typically lasts 30+ years with minimal maintenance — one of the longest lifespans of any flat roofing system.
Is fibreglass better than felt or rubber?
Yes — fibreglass is completely seamless (no joints to fail), more durable, and lasts longer than traditional felt (10–15 years) or EPDM rubber (20–25 years).
Can fibreglass be installed in any weather?
GRP requires dry conditions and above-5°C temperatures during installation. We carefully plan around UK weather to ensure perfect application.
What colours and finishes are available?
Fibreglass can be finished in a range of colours — most common are grey, dark grey, and slate. Custom colours are also available for specialist projects.
Can I walk on a fibreglass roof?
Yes, GRP fibreglass is robust enough for foot traffic. It’s commonly used on balconies, roof terraces, and walkways where regular access is needed.
How long does installation take?
Most residential GRP fibreglass roof installations are completed within 2–4 days, depending on size and weather conditions. We’ll provide a clear schedule.
What guarantee comes with fibreglass roofing?
All our GRP fibreglass roof installations come with a 20-year workmanship guarantee plus full manufacturer warranties on the materials.