GRP Fibreglass Roofing · Weymouth & Surrounding Dorset
Fibreglass Roofing Weymouth
Seamless GRP flat roof installations, repairs and felt conversions for homes and businesses across Weymouth, Portland and the surrounding coast.
- Free, no-obligation quotes
- Fully insured tradespeople
- Written guarantee on every job
- Local knowledge of Weymouth's coastal weather
Get a fast, free quote
Tell us what needs doing and we'll call you back.
Fibreglass roofing services in Weymouth
From a single garage roof to a full commercial re-roof, every job is finished as a seamless GRP membrane built for Dorset's coastal weather.
GRP Flat Roof Installation
New fibreglass flat roofs laid as a single seamless waterproof membrane, built up over marine-grade plywood decking.
Find out more ›Fibreglass Roof Repairs
Cracked gel coat, hairline splits and pooling water sorted quickly, with colour-matched resin finishing.
Find out more ›Felt-to-Fibreglass Conversion
Ageing bitumen felt roofs stripped back and replaced with a GRP system that won't blister or split.
Find out more ›Garage Roof Replacement
Single-sheet fibreglass garage roofs with no joints for rain to find, finished in a day for most garages.
Find out more ›Dormer & Balcony Roofing
Detailed fibreglass work around dormer cheeks, upstands and balcony decks where standard felt struggles.
Find out more ›Commercial Flat Roofing
Low-maintenance GRP roofing for shops, offices and industrial units, scheduled around your trading hours.
Find out more ›Why choose a GRP specialist
Fibreglass isn't a patch-up material — laid correctly, it becomes the roof's structural waterproofing layer.
Fully insured work
All work is carried out by insured tradespeople, with a written specification agreed before anything is booked in.
Genuinely seamless
GRP is laid as one continuous membrane with no overlaps or joints — the most common place a felt or shingle roof lets water in.
Fast turnaround
Most domestic flat roofs are dried in and finished within a day, weather and deck condition allowing.
Written guarantee
Every completed job comes with a written guarantee covering the workmanship and materials used.
How a fibreglass re-roof works
Every job follows the same process, from first call to finished roof.
Free survey & quote
We look at the existing roof, check the deck, and give you a written price — no obligation to go ahead.
Strip & prepare
Old felt or failed coverings are removed and the timber deck is checked and repaired where needed.
Lay the GRP system
Resin, matting and top coat are built up in layers to form one seamless, fully bonded membrane.
Finish & guarantee
Trims, upstands and edge detailing are finished, the roof is inspected, and your written guarantee is issued.
Areas we cover around Weymouth
Based to serve Weymouth and the wider Dorset coast, including:
Fibreglass roofing questions
How long does a fibreglass flat roof last?
A correctly installed GRP roofing system typically performs well for 25 years or more, provided the resin and matting are laid to manufacturer specification over a sound, dry deck.
Can you fit a fibreglass roof over my existing felt roof?
In most cases the old felt needs to come off first so the plywood deck can be checked for rot and repaired where needed. Laying GRP over damp or failing decking will shorten its life, so we always inspect the deck before quoting.
How long does installation take?
A typical garage or extension roof is usually completed within a day once the deck is ready. Larger roofs, roofs needing deck repairs, or jobs with difficult access can take two to three days.
Do you work on both flat and low-pitch roofs?
Yes. GRP fibreglass is suited to flat roofs and shallow-pitch roofs including dormer cheeks, box gutters, balconies and porch canopies.
Is fibreglass roofing suitable for a coastal property?
GRP performs well in exposed, salt-laden coastal air because it forms a single seamless membrane with no joints or fixings for wind-driven rain to exploit — a common concern for property along the Weymouth seafront and Portland.
Do you provide a written quote before starting work?
Yes, every enquiry receives a written quote confirming the specification, materials and price before any work is booked in.