GRP fibreglass and EPDM rubber flat roofing for rear extensions, garage roofs and outbuildings across Brighton. Coastal-grade materials that handle salt air, UV and Channel weather year-round — with a 25-year manufacturer's warranty and our 10-year workmanship guarantee.
Flat roofing in Brighton uses GRP fibreglass or EPDM rubber, typically costing £70–£90 per square metre installed. GRP suits Brighton's coastal exposure best, lasting 30–40 years with no lap joints to fail. All work carries a 10-year guarantee. Call 01273 973 996 for a free flat-roof survey.
Rear kitchen extensions are the most common flat roof in Brighton's Victorian terraces. Here are the systems we recommend for coastal conditions.
Our most recommended system for Brighton. Completely seamless, resistant to salt air, UV and mechanical damage. 25-year manufacturer warranty. Typical cost: £70–£90/sqm.
Get a quote →Excellent performance in coastal conditions. Lighter than GRP, easier installation on large spans. Highly flexible — handles movement without cracking. 20-year warranty. From £60/sqm.
Get a quote →Existing felt, GRP or EPDM flat roofs that have failed. We assess, advise on repair vs replacement, and carry out the most cost-effective solution. From £300.
Get a quote →Call now for a free, no-obligation quote. No call-out fees.
Brighton's Victorian through-terraces — which make up the majority of housing stock in Hanover, the Level, Elm Grove and the Lewes Road corridor — almost universally have flat-roofed rear extensions. These kitchen and bathroom additions were typically built between 1950 and 1990 with torch-on or mineral felt systems. Most of those roofs are now at or beyond end of life, and in Brighton's coastal environment they have typically deteriorated faster than equivalent inland properties.
Salt air increases UV-related surface degradation in felt systems. The temperature cycling of coastal exposure — warming from direct sun then rapid cooling from sea breezes — creates expansion and contraction cycles that open lap joints faster than in inland locations. GRP fibreglass is the best solution for Brighton precisely because it forms a single seamless membrane with no lap joints to fail. EPDM rubber handles movement better than felt and also lacks lap joint vulnerability on standard extension sizes.
We install most of our Brighton flat roofs on Victorian terrace rear extensions across Hanover, Fiveways, Preston Park and the Lewes Road area. Garage roofs in Hollingbury and Moulsecoomb are also a regular request. Flat-roofed extensions in the North Laine and Kemp Town areas sometimes require planning consideration — we advise on this as part of the survey.
We survey the existing roof, advise on the best system for your property, and provide a written quote with no obligation.
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"Kitchen extension flat roof had been leaking for three years. Previous roofer patched it twice. These guys replaced the whole thing with GRP — it's been bone dry through two winters now. Should have done it sooner."
"Garage roof replacement. They advised GRP over felt given our position near the seafront. Two years on, absolutely zero issues. Great installation and a fair price."
"Fast survey, clear quote, tidy installation. Finished in a day and a half. The difference in quality versus the old felt is obvious just by looking at it. Very happy."
Every job follows the same clear process — no surprises, no hidden costs, full communication throughout.
We inspect the existing membrane, check drainage falls, assess the deck condition and identify any structural issues before quoting.
All existing felt or membrane stripped. Deck inspected thoroughly — any rot or saturation documented and quoted for before work proceeds.
Deck repaired or replaced where needed. Any drainage issues corrected. Falls assessed and improved where possible.
New membrane installed to manufacturer specification. GRP: full lamination across the entire deck as a single membrane. All upstands, outlets and penetrations correctly detailed.
10-year written workmanship guarantee issued. Free annual inspection for the first 5 years after installation.
Flat roofs fail differently from pitched roofs — the signs are ponding, splits and lifting laps rather than slipped tiles. We see the same early signs again and again on Brighton roofs.
The signs worth acting on:
When it is not the answer: If a GRP or EPDM roof is only 10 years old with a single split, a localised repair is usually right — replacement would be premature — see our guide.
Brighton's coastal UV intensity and salt air make flat roofing material selection more critical here than inland. The city's housing diversity — from Regency seafront terraces to 1970s estate housing — means every flat roof installations requires specific local knowledge.
Brighton & Hove has over 30 conservation areas including Brunswick Town, Kemp Town, Hanover and the central Victorian streets. In these areas, GRP fibreglass flat roofing must use materials that match what is currently on the property. We advise on conservation area requirements and source matching materials for every affected job.
Brighton's Channel-facing position means salt air, coastal UV and the thermal cycling driven by sea temperature differentials all affect material performance. We specify materials appropriate to each property's specific coastal exposure — not one-size-fits-all inland specifications.
We cover all of Brighton, Hove and East Sussex. For emergency work, we aim to reach any Brighton property within 2-4 hours. For planned flat roof installations, we typically carry out a free survey within 48-72 hours of your call and provide a written quote the same day or within 24 hours of the survey.
Every Brighton roof is different, but these are the durations we quote most often:
| Job | Typical duration |
|---|---|
| Localised felt repair | 1–3 hours |
| Small extension / garage roof (GRP) | 1–2 days |
| EPDM rubber recover | 1–2 days |
| Warm-deck build-up (per roof) | 2–4 days |
| Full strip & re-lay | 2–4 days |
Around Brighton, gRP and warm-deck systems need dry, mild conditions to cure — we book them into settled windows and never lay resin onto a wet deck.
On Brighton roofs, most flat roofs are reached from a tower or ladder; scaffold is needed only where the roof is at height or edge protection is required. Scaffold is specified for first-floor or higher flat roofs, and anywhere an exposed edge needs protection — always itemised in your written quote, never a hidden extra, and we arrange it.
In Brighton, Brighton's stock runs from Regency and Victorian seafront terraces to inter-war and post-war suburban semis, so access ranges from tight city-centre returns to open plots. Pavement scaffold and skip permits go through Brighton & Hove City Council; allow a few working days on streets like Elm Grove, Dyke Road, Preston Drove where space is tight.
These are realistic Brighton price ranges — fixed in writing after a free survey, with no call-out fee:
| Job | Typical range | Notes |
|---|---|---|
| Localised felt repair | £150–£350 | Per visit |
| Garage / small extension (GRP) | £800–£2,000 | Fibreglass, one-piece |
| EPDM rubber roof | £1,200–£3,000 | Single-ply, long life |
| Warm-deck build-up | £2,000–£4,500 | Insulated, Building Regs |
| Full strip & re-lay (large) | £3,000–£6,000 | Size dependent |
Worked example: A new GRP garage roof on a Victorian terrace off Elm Grove typically runs around £1,400, including access and waste.
For Brighton homeowners: no deposit on small repairs. Staged payments on larger flat-roof projects, materials-on-site first.
On Brighton roofs, our workmanship is backed by a written 10-year guarantee, with manufacturer warranties on materials on top — in writing, every time.
If a fault appears in covered work, we come back and put it right — no quibbling, no re-charge.
For a Brighton home, expect this: usually a quiet one- to two-day job over an extension or garage — minimal mess, and we clear the old covering as we go. You do not need to stay home for external work — we just need power and access agreed in advance.
Felt and EPDM can be laid in cooler weather; GRP needs mild, dry conditions to cure, so we plan resin work around the forecast. Locally, Brighton's seafront exposure brings salt-laden air and Channel gales that corrode lead and fixings faster than inland, while the hillier northern suburbs catch wind straight off the Downs.
GRP fibreglass typically costs £70–£90 per sqm installed. A typical rear extension (20–30sqm) costs £1,400–£2,700. EPDM rubber starts from £60/sqm. Free survey and written quote on every job.
GRP fibreglass is our top recommendation for Brighton's coastal conditions. Completely seamless, salt and UV resistant, 25-year manufacturer warranty. EPDM is an excellent lower-cost alternative. We don't recommend traditional felt in Brighton.
GRP fibreglass typically lasts 30–40 years, even in coastal conditions. It carries a 25-year manufacturer's warranty. With proper installation it should outlast the extension it covers.
Most standard extension roofs (up to 30sqm) can be stripped and re-covered in GRP in 1–2 days. Larger roofs or those requiring structural work may take longer. We confirm the timeline in your quote.
We assess, advise and quote. No obligation. GRP and EPDM specialists for Brighton's coastal conditions.
01273 973 996Weighing up materials? These plain-English Brighton guides compare the options side by side on lifespan, cost and looks.