GRP Fibreglass Flat Roofs In Bishop's Stortford
On Bishop's Stortford's post-war and modern estates, flat roofs on extensions are common, and GRP fibreglass suits the ones that need to be tough underfoot or have lots of awkward detail. Think extension roofs with lanterns, dormers, or a flat roof used as a small terrace. Laid wet and finished with a topcoat, it sets into one continuous surface.
Options for your roof
We install and repair across all major options to suit your home and budget.

Dark blue GRP on terrace
Seamless GRP fibreglass system with non-slip finish laid across a walk-on terrace.

Light grey GRP roof
Monolithic light grey GRP fibreglass flat roof installed with perimeter upstands and trims.

GRP garage roof
Ultra-durable GRP fibreglass coating applied to a residential flat garage roof.
GRP jobs we do around the town
We lay GRP on extensions, dormers and porches throughout CM22 and CM23, as well as in Sawbridgeworth and the Hadhams. The process starts with removing the old covering and fitting a new deck. Glass fibre matting is then laid into wet polyester resin and rolled until fully bonded, forming a solid laminate. Once that has cured, a coloured topcoat goes on to seal and protect it from weather and sunlight. Moulded trims give the edges a crisp finish. Because GRP is applied as a liquid, it forms neatly around rooflights, pipes and corners with no seams to fail. Colours such as grey, black or green can be chosen to suit the house.
Every job starts with a free survey and a written quote. Call 01279 294082 or book online.
Arrange a free grp fibreglass flat roofs survey in Bishop's StortfordRelated guide: EPDM vs GRP vs felt: which flat roof is right for your home?Weather and the right conditions
GRP needs a dry deck and dry weather to cure properly, so we plan installation around the forecast and won't start if rain is due. If you want to use the roof as a terrace, we check the structure and any planning rules first. The finished roof comes with our 10-year guarantee.


The Benefits Of Our GRP Fibreglass Flat Roofs
Seamless glass-reinforced plastic
Impact & foot traffic resistant
Available in charcoal & slate finishes
Our 6-Step Process
From initial inspection to signed-off guarantee, every stage is transparent.
Free survey
We survey the roof and check the decking.
Written quote
You receive a fixed written quote.
Prepare and protect
We set up protection and a clean OSB3 deck.
The main work
We lay the resin and matting and apply the non-slip topcoat.
Finishing details
Trims and drainage details are finished off.
Clean-up and sign-off
Once cured and inspected, we tidy up and sign off.
Free Written Quote After A No-Obligation Survey
We survey your roof in Bishop's Stortford, assess the work needed, and provide a fixed, itemised written quote. The price we quote is the price you pay — no hidden extras, no large upfront deposits.
Get a Free QuoteWhat's included
- Seamless glass-reinforced plastic
- Impact & foot traffic resistant
- Available in charcoal & slate finishes
- Free written quote after a no-obligation survey in Bishop's Stortford
EPDM vs GRP vs felt: which flat roof is right for your home?
EPDM rubber, GRP fibreglass and modern felt all make good flat roofs when they are fitted well. Here is how they differ, and how to pick the right one for your garage, extension or dormer.
GRP Fibreglass Flat Roofs in Bishop's Stortford — Your Questions
Everything you need to know about our grp fibreglass flat roofs service across Bishop's Stortford and Hertfordshire.
Trusted by homeowners in and around Bishop's Stortford
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Other Roofing Services In Bishop's Stortford

New Roofs in Bishop's Stortford
Complete pitched and bespoke roof installations using high-grade slate, tile, and modern breathability systems with a 10-year guarantee.

EPDM Flat Roofs in Bishop's Stortford
Seamless synthetic rubber roofing with exceptional weathering resistance, a long-lasting, leak-free jointless membrane.

Felt Flat Roofs in Bishop's Stortford
Multi-layer high-performance torch-on polyester bitumen membranes engineered for long-lasting, cost-effective flat roof protection.

Roof Repairs in Bishop's Stortford
Rapid diagnostic and targeted fix service for storm damage, missing tiles, ridge recapping, flashing leaks, and chimney repointing.
Start Your Free Quote
Tell us a little about your roof and we will call you back to arrange a free survey and a fixed written quote.
A survey you can trust
- Free written quote after a no-obligation survey.
- 10-year written guarantee on new roofs.
- Checkatrade approved and fully insured.
- Emergency repairs available for storm damage and leaks.
Prefer to speak right now?
01279 294082Get A Free Quote For GRP Fibreglass Flat Roofs In Bishop's Stortford
Speak to our team today. We provide a free, no-obligation on-site survey in Bishop's Stortford and a fixed written quote.
