EPDM rubber roofing
A single seamless sheet with no joins to split. Our default recommendation for extensions and garages — quick to fit, long-lived, and it copes with movement in the deck.

Almost every Braintree house with a rear extension, a garage or a dormer has a flat roof somewhere, and most of them are still on old felt that was never going to last. We repair, re-cover and install flat roofs in EPDM rubber, GRP fibreglass and modern torch-on felt.
Flat roof work
A single seamless sheet with no joins to split. Our default recommendation for extensions and garages — quick to fit, long-lived, and it copes with movement in the deck.
Laid wet and cured into one solid, walkable surface with crisp trims. Ideal for balconies, dormers and anywhere the roof gets used or seen.
Modern three-layer systems are a world away from 1970s pour-and-roll. Cost-effective on larger areas and outbuildings.
Blisters, split seams, lifted upstands and failed flashings patched properly — where a patch is genuinely worth the money.
Most flat roof failures are really drainage failures. We replace soft decking and build in a proper fall so water leaves rather than sits.
A warm-deck build-up added during a re-cover brings an old extension roof up to a far better standard with no extra scaffolding cost.
Guide prices
Supplied and fitted, including stripping the old covering, new deck where needed and new trims.
| Job | Typical guide price |
|---|---|
| Single garage, EPDM re-cover | £1,600 – £2,600 |
| Rear extension, EPDM (up to 25m²) | £2,400 – £4,200 |
| GRP fibreglass, per m² | £110 – £160 |
| Dormer re-cover | £900 – £1,800 |
| Localised flat roof repair | from £180 |
| New timber deck, per m² | from £45 |
Guide prices only. Access, deck condition, insulation and the number of upstands and outlets all affect the final figure, which is fixed in writing after a survey.
Why it fails
Local knowledge
Where a flat roof sits tells us a lot about why it's failed.
Original pour-and-roll felt at the end of its life, usually laid dead flat. Re-covered in EPDM with a corrected fall.
Cheap coverings, soft decks and no upstand detail at the house wall. Usually the most cost-effective flat roof to put right.
Small areas but fiddly detailing around cheeks and windows — GRP or EPDM with properly formed trims.
Modern estate flat roofs that fail early at the abutment rather than in the field of the roof.
Keep reading
Where we work
Based in Braintree and working roughly 30 miles out. Pick your town for local jobs, photos and reviews.
More from Iron Peak
Not quite what you need? These pages cover the rest of the roof — every job is priced in writing after a free survey.
Common questions
Free survey
Tell us the address and what you're seeing. We'll come out from the Braintree yard, look properly, and put a fixed price in writing before anything starts.