GRP Fibreglass Roofs
GRP Fibreglass Roof Installation, Repair and Maintenance in Bristol and Surrounding Areas

For expert advice and a free quote, call 07988 084870
At Fortress Roofing, we supply and install high-quality GRP fibreglass roofing systems for domestic and commercial properties across Bristol and the surrounding areas.
GRP (Glass Reinforced Plastic), also known as fibreglass roofing, is one of the most reliable and low-maintenance solutions for flat roofs available today.
Ideal for garages, extensions, porches, balconies and commercial buildings, GRP fibreglass roofs offer a sleek, modern finish with long-term weather protection. If you’re looking for a robust flat roofing system with minimal upkeep, GRP is a proven option that delivers both strength and style.
What is GRP Fibreglass Roofing?
GRP roofing is a cold-applied system made from multiple layers of fibreglass matting saturated with resin, then finished with a UV-resistant topcoat. This creates a completely seamless and watertight surface, free from joints or weak points.
Once cured, the result is a highly durable roof with excellent resistance to water, impact, and the elements—ideal for the unpredictable British weather.
Benefits of GRP Roofing
- Seamless finish – No joins or welds means no weak points for water to penetrate
- Extremely durable – Lifespan of 25+ years with proper installation and maintenance
- Low maintenance – Resistant to moss, algae and weather-related wear
- Sleek appearance – Clean, modern finish suitable for contemporary and traditional properties
- Fire retardant and UV resistant – Built to handle extreme temperatures and sun exposure
- Lightweight but strong – Suitable for a wide range of structural roof designs
Our GRP Roofing Services

GRP Roof Installation
We provide full GRP roofing installations for new builds, extensions, and refurbishments. Our skilled team ensures the correct preparation of the decking and trims, followed by expert application of resin, matting, and topcoat for a flawless result.

GRP Roof Replacement
If your old flat roof is leaking, cracked, or simply at the end of its life, we can safely remove the existing covering and replace it with a new, high-performance GRP system. We’ll ensure proper drainage, detail work, and ventilation to extend the life of your new roof.

GRP Roof Repairs
While GRP roofs are extremely durable, damage can occasionally occur due to impacts or poor workmanship by previous installers. We offer cost-effective GRP roof repairs, resealing problem areas and ensuring your roof is watertight once again.
Why Choose Fortress Roofing?

Covering Bristol and Surrounding Areas
From our base in Bristol, we serve homeowners, landlords, and businesses throughout the region, including Bath, Weston-super-Mare and nearby areas. Whether it’s a small flat roof or a large commercial project, we provide the same level of care and attention to detail.
Request Your Free GRP Roofing Quote
If you’re considering a fibreglass roof for your home or commercial premises, speak to the experts at Fortress Roofing today.
Call 07988 084870 to arrange a free site assessment and no-obligation quote.

GRP Fibreglass Roof Installation, Repair and Maintenance in Bristol and Surrounding Areas

For expert advice and a free quote, call 07988 084870
At Fortress Roofing, we supply and install high-quality GRP fibreglass roofing systems for domestic and commercial properties across Bristol and the surrounding areas.
GRP (Glass Reinforced Plastic), also known as fibreglass roofing, is one of the most reliable and low-maintenance solutions for flat roofs available today.
Ideal for garages, extensions, porches, balconies and commercial buildings, GRP fibreglass roofs offer a sleek, modern finish with long-term weather protection. If you’re looking for a robust flat roofing system with minimal upkeep, GRP is a proven option that delivers both strength and style.
What is GRP Fibreglass Roofing?
GRP roofing is a cold-applied system made from multiple layers of fibreglass matting saturated with resin, then finished with a UV-resistant topcoat. This creates a completely seamless and watertight surface, free from joints or weak points.
Once cured, the result is a highly durable roof with excellent resistance to water, impact, and the elements—ideal for the unpredictable British weather.
Benefits of GRP Roofing
- Seamless finish – No joins or welds means no weak points for water to penetrate
- Extremely durable – Lifespan of 25+ years with proper installation and maintenance
- Low maintenance – Resistant to moss, algae and weather-related wear
- Sleek appearance – Clean, modern finish suitable for contemporary and traditional properties
- Fire retardant and UV resistant – Built to handle extreme temperatures and sun exposure
- Lightweight but strong – Suitable for a wide range of structural roof designs
Our GRP Roofing Services

GRP Roof Installation
We provide full GRP roofing installations for new builds, extensions, and refurbishments. Our skilled team ensures the correct preparation of the decking and trims, followed by expert application of resin, matting, and topcoat for a flawless result.

GRP Roof Replacement
If your old flat roof is leaking, cracked, or simply at the end of its life, we can safely remove the existing covering and replace it with a new, high-performance GRP system. We’ll ensure proper drainage, detail work, and ventilation to extend the life of your new roof.

GRP Roof Repairs
While GRP roofs are extremely durable, damage can occasionally occur due to impacts or poor workmanship by previous installers. We offer cost-effective GRP roof repairs, resealing problem areas and ensuring your roof is watertight once again.
Why Choose Fortress Roofing?

Covering Bristol and Surrounding Areas
From our base in Bristol, we serve homeowners, landlords, and businesses throughout the region, including Bath, Weston-super-Mare and nearby areas. Whether it’s a small flat roof or a large commercial project, we provide the same level of care and attention to detail.
Request Your Free GRP Roofing Quote
If you’re considering a fibreglass roof for your home or commercial premises, speak to the experts at Fortress Roofing today.
Call 07988 084870 to arrange a free site assessment and no-obligation quote.
