GRP Laminating Specialists
We’re a roofing company based in the south east of England, our services include high quality liquid waterproofing for roof replacements & repairs.
2006
Established
25
Years Guarantee
5*
Google Reviews
30+
Years Experience
What is GRP?
Glass reinforced plastic (GRP), also known as fibreglass, is a composite material made from a plastic polymer reinforced with glass fibres. The fibreglass is saturated in a polyester resin, which fully hardens once mixed with a catalyst.
Due to the omnidirectional fibres and thickness of the matting, it provides high strength across all areas, yet being very lightweight.
Frequently Asked Questions
Do Our Roofs Come with a Guarantee
Yes. All of our new fibreglass roofs come with an 25 year guarantee. We also offer 30 year insurance backed guarantees at an additional cost.
Can Our Roofs Be Walked On
Are There Any Size Limitations to GRP Roofs
No. Fibreglass has no limitations in terms of area coverage. Expansions joints will need to be installed for areas over 50m².
Can GRP Roofs Be Repaired
Yes. Our overlay system can be applied to exisitng GRP roofs which haven't delaminated due to incorrect installations. Fibreglass roofs are repairable for cracks, peeling and faded topcoat.
Overlays are available for exisiting GRP, felt, asphalt and EPDM rubber roofs.







Before & After

Flaws of Felt & EPDM Rubber Roofs
Felt and EPDM rubber system are often used for flat roofs due to the quick installation time and competitive pricing. However these do not offer the same durability and longevity as a fibreglass roof. Joins and seams lose their adhesive strength over time and can be further damaged by environmental factors.

Fibreglass Roofing Misconceptions
In recent years GRP roofs have gained popularity due to the promotion of the system in merchants. Often Builders will attempt to install a fibreglass roof with limited experience or knowledge, which results in the product getting a 'bad reputation'.
Common installation mixtakes include:
- Laminating while it is raining, wet, or snowing
- Pinholes caused by insufficient coating of the matting
- Incorrect boarding e.g. plywood
- Not using expansion joints
What Our Customers Say
GRP Flat Roofs
Our GRP flat roof system includes a base-resin, fibreglass chopped-strand matting and a pigmented resin for the topcoat. These roofs are boarded with 18mm t&g OSB3 sterling boards, and are laid with either 450g per m² matting (standard), 600g for heavy foot traffic, and 900g for green roofs.
Advantages of Glass reinforced polyester:
- No joins or seams
- No splits or cracking
- 25-year guarantee
- Smooth finish (optional non-slip)
- Low maintenance
- Choice of colours
GRP Overlays (Fibreglass, Felt, Asphalt & EPDM Rubber)
For felt, asphalt, fibreglass and epdm rubber roofs, we offer a flexible polyester resin overlay product such as Restec 2020. This product has various primers, which adheres to the existing surface, before the application of the resin. Unlike replacing the entire decking, which results in a smoother finish, overlays take the shape of the existing material.
Benefits of Overlays:
- Cost effective (no removal of existing material)
- More flexible than standard resin
- 2-coat application
- 20-30 year guarantee
GRP Pond Lining
Our GRP pond lining service offers a fully waterproof system, which adheres to new pond, pools, wet room tanking, and fountains. We also refurbish old lining, with the option of choosing from a wide range of colours.
Fibreglass lining consists of a 3 part process. A primer is used on all areas which require waterproofing, followed by the polyester resin and chopped-strand matting. After the waterproofing is complete, the entire area is sanded, then painted with a a pigmented resin.
Benefits of fibreglass pond lining:
- No seams or joins
- Easy to clean
- No effect on marine life
- Sustainable materials









