GRP Fibreglass Flat Roofs In Great Dunmow
GRP fibreglass gives Great Dunmow homeowners a hard, seamless flat roof that can be walked on. The glass-reinforced polyester goes down wet on fresh boards, cures solid and is sealed with a topcoat. It is a strong choice for rear extensions and garages that need regular access.
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.
Where GRP works best in Great Dunmow
Across the town's post-war streets and its newer estates, we see plenty of single-storey extensions sitting under first-floor windows. If you need to step out to clean glass or reach a gutter, old felt soon cracks. GRP stands up to that kind of use. We remove the failing roof, lay a new timber deck, and build up the fibreglass with moulded edge trims, carefully formed corners and upstands at the walls. The topcoat goes on last. Because the whole surface is one continuous layer, there are no seams across the middle to let water in.
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 Great DunmowRelated guide: EPDM vs GRP vs felt: which flat roof is right for your home?Getting GRP right in Great Dunmow
GRP needs a dry day to cure properly, so we plan around the weather, particularly on exposed sites at the edge of town. If your home is in the historic centre's conservation area, we talk about appearance if the roof can be seen. Our 10-year guarantee comes with every new GRP roof.


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 Great Dunmow, 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 Great Dunmow
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 Great Dunmow — Your Questions
Everything you need to know about our grp fibreglass flat roofs service across Great Dunmow and Essex.
Trusted by homeowners in and around Great Dunmow
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Other Roofing Services In Great Dunmow

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

EPDM Flat Roofs in Great Dunmow
Seamless synthetic rubber roofing with exceptional weathering resistance, a long-lasting, leak-free jointless membrane.

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

Roof Repairs in Great Dunmow
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 Great Dunmow
Speak to our team today. We provide a free, no-obligation on-site survey in Great Dunmow and a fixed written quote.
