GRP fibreglass and EPDM rubber flat roofing across all Hull postcodes. Extension and garage flat roof replacement on Hull's large stock of 1960s–90s properties — the right systems for the Humber climate. Free surveys. Call 0148 290 8437.
Tell us the job in 30 seconds. No pushy sales, no call-out fee.
Hull a city on the Humber estuary exposed to marine damp and easterly wind. The housing is street after street of Victorian and Edwardian terraces — the Avenues, Newland and the city centre — many converted to flats with shared pitched roofs, failing valley gutters and party-wall stacks. Flat roofs here take the full force of that exposure, so corrected falls and a proper warm-deck build-up matter more than anywhere.
Knowing Hull’s stock and exposure means our survey starts in the right place — around the Old Town, the Avenues and the marina and the streets that share the same era and the same weather — rather than treating every roof the same.
On the terraced Avenues and Newland streets the classic failure is the shared valley gutter between two houses — block it with autumn leaves and it backs up into the bedrooms below. Wherever you are in Hull, we give an honest steer on whether a fault is a quick fix or something bigger, and put the recommendation in writing with no obligation.
Hull falls under Hull City Council, covering the HU1–HU9 postcodes. Where a job needs safe standing time at height we quote scaffold with a stated hire period; smaller repairs run from towers or roof ladders. On older Hull streets with no rear access, scaffold and skips load from the front under a Hull City Council pavement or highway permit, which we arrange as part of the job.
Every quote is written and itemised with no call-out fee, and the same written 10-year workmanship guarantee applies to Hull work as everywhere we cover.
Flat roof replacement and repair across all Hull postcodes. No traditional felt — only GRP and EPDM systems engineered to handle Hull's Humber exposure.
Seamless GRP system — the highest-spec flat roofing option for Hull. 25–40 year lifespan, zero joins, completely waterproof. Ideal for extensions exposed to Humber weather.
Get a quote →Single-ply rubber membrane for larger flat roofs. Excellent freeze-thaw performance for the east Hull and Humber corridor climate. 25–35 year life.
Get a quote →Single-storey extensions across Hull's 1970s–90s housing stock are the highest volume flat roof call we receive. Old felt out, GRP or EPDM in — typically one day.
Get a quote →Original felt on Hull garages is typically 30–50 years old. Full replacement in GRP or EPDM. Same-day installation on most standard garage sizes.
Get a quote →Where the deck is sound and failure is localised, repair is cost-effective. We assess honestly before quoting — we don't push replacement where repair will do.
Get a quote →Ponding on flat roofs is a design or fall problem, not just a membrane problem. We correct drainage as part of every flat roof replacement.
Get a quote →"Extension flat roof on our HU8 semi — original 1970s felt, leaked every heavy rain for two years. GRP replacement done in a day. Completely watertight since. Can't believe we put it off so long."
"Large garage flat roof in HU5 — EPDM installed over two days. Clean, professional team and the drainage fall is now correct for the first time since the garage was built."
"They surveyed the deck before quoting and found some rot in one corner that needed replacing before the new membrane went on. Honest approach — quoted the deck repair separately and clearly. Would use again."
Hull has one of the highest concentrations of flat roof extensions in the East Riding — a direct consequence of the mass residential construction of the 1960s through to the 1990s, which routinely added single-storey kitchen or living room extensions with flat roofs. These properties are now 30–60 years old and the original felt membranes have exceeded their design life. The flat terrain of Hull also means very little natural wind drying — moisture sits longer on roof surfaces, accelerating felt degradation.
The Humber Estuary influence extends well across the Hull urban area in terms of humidity and salt content in the air. This gives traditional felt membranes a shorter effective life in Hull than in drier, inland areas. GRP and EPDM are engineered to handle this and are the correct choice for any flat roof replacement in the Hull catchment. We see very few repeat calls on GRP or EPDM we've installed — the same cannot be said for budget felt.
For extensions up to approximately 40m² in Hull, GRP fibreglass is the preferred specification — seamless, highest durability, longest life. For larger flat areas (garages over 30m², commercial-adjacent or irregular shapes), EPDM rubber is the more practical choice — large format sheets cover bigger areas with fewer joins. We specify based on your deck size, shape and condition after the survey. Both come with the same 10-year workmanship guarantee.
📍 Covering all Hull postcodes
📞 0148 290 8437
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Flat roof replacement in Hull: £800–£2,500 for standard extension or garage size. Larger areas quoted individually. Free survey, no call-out fee.
A standard extension or garage flat roof in Hull typically costs £800–£2,500 in GRP or EPDM depending on area. Larger flat roofs and those with deck repairs required will cost more. Free survey and itemised quote. Call 0148 290 8437.
A correctly installed GRP roof has a design life of 25–40 years in the Hull climate. EPDM runs 25–35 years. Both significantly outperform traditional felt in the humid, Humber-influenced environment.
If the deck is sound and the membrane failure is localised, repair is viable and we'll always recommend it where it makes sense. If the felt is generally degraded or the deck has moisture damage, replacement is more economical. We assess and give you an honest recommendation.
Yes. We cover flat roof replacement and repair across all Hull postcodes. Call 0148 290 8437 to book a free survey.
A standard single-storey extension or garage flat roof replacement in Hull is typically completed in one day for GRP, or one to two days for EPDM on larger areas. Properties with deck damage that needs repair before the new membrane goes on will add a day. We'll give you a precise programme when we survey.
GRP fibreglass requires a minimum temperature of approximately 5°C during application and curing. In East Yorkshire winters this means there are days — particularly January and February — where GRP work isn't possible. EPDM rubber can be installed at lower temperatures. We schedule flat roof replacements with weather contingency and will always rebook promptly if conditions prevent the work going ahead on the planned day.
Yes. Full strip of the existing membrane and any degraded insulation is included in the replacement price. Where the deck boards are found to have moisture damage, we quote the board replacement separately before proceeding — we never lay a new membrane over a compromised deck. All old material is disposed of through licensed waste carriers.
No call-out fees. No obligation. Just an honest quote from a local Beverley roofer who turns up when they say they will.
0148 290 8437