07447 188036info@gnbroofing.co.uk Serving East AngliaMon–Sat 7am–6pm HomeAboutServicesFlat Roof InstallationFlat Roof ReplacementFlat Roof RepairsEPDM Rubber RoofingSingle-Ply Membrane (SFlex · Sika Plan · Resitrix)Commercial Flat RoofingFascias & Soffits (UPVC)Guttering & BargeboardsCladding — UPVC, Timber-Effect & Composite AreasNorfolk NorwichThorpe St Andrew & SprowstonHellesdonCostesseyTaverhamDraytonCringlefordWymondhamDerehamGreat YarmouthThetfordKing's Lynn County overview Norfolk (county overview)Suffolk (county overview)Cambridgeshire (county overview) Our WorkReviewsContact07447 188036Get Free Quote - Home - Areas - Great Yarmouth Norfolk · 45 mins from our Norwich yard · Coastal detailing as standard # Flat Roofingin Great Yarmouth& the Coast Coastal-rated flat roof installation, replacement and emergency repairs across Great Yarmouth, Gorleston-on-Sea and Caister. Wind-uplift specified. Written quote in 3–4 days. Get my free fixed-price quote 07447 188036 Survey within the week across NR30, NR31 and NR29 · No call-out fees · You deal with Neil directly Flat-roofing specialist Sika Plan Approved Installer 20-yr product / 10-yr workmanship PL & EL fully insured Free fixed-price quotes Local coverage ## How we serve Great Yarmouth — properly. Great Yarmouth is a different job to inland Norfolk and we treat it that way. Wind loads are higher, salt spray shortens the life of anything unrated, and roofs on the seafront take a beating that a felt build-up simply doesn't survive. We spec Sika Plan or Resitrix single-ply with mechanical fixings to the correct wind-uplift zones, and we've been doing it here for a long time. ### Where we cover in Norfolk NR30 (central Great Yarmouth, seafront, North Denes), NR31 (Gorleston, Bradwell, Belton, Hopton) and NR29 (Caister, Ormesby, Hemsby, Winterton). We travel from our Norwich yard — around 45 minutes each way — so surveys are batched to keep costs down. ### Response times Survey within the week across NR30, NR31 and NR29. Emergency leaks and storm damage are prioritised within our operating hours (Mon–Sat 7am–6pm). ### Great Yarmouth property types we know Victorian seafront terraces with parapet-detailed flat roofs, interwar semis inland, a lot of 1960s–80s bungalows with large flat sections, seasonal chalets on the North Denes, and post-war commercial along Regent Road and Marine Parade. Gorleston sees more suburban semis with rear-extension flats. ### Common jobs in Great Yarmouth Wind-lifted felt after a north-easterly, splits at parapet upstands where old lead flashings have failed, chimney and skylight leaks after storms, blistered asphalt on 60s–70s bungalow flats, and full replacement of coastal roofs where the substrate is done. We also refit a lot of UPVC fascias and full guttering runs where salt has eaten through the older aluminium and steel systems. Services in Great Yarmouth ## Every service we offer is available in Great Yarmouth. ### Flat Roof Installation New-build and extension flat roofs in Great Yarmouth, installed as warm-roof build-ups to current Part L. Sika-backed guarantee. View service ### Flat Roof Replacement Strip, deck-check and full replacement for end-of-life flat roofs across Great Yarmouth. EPDM, Sika Plan or Resitrix. View service ### Flat Roof Repairs Leaks, splits, blisters and storm damage fixed on Great Yarmouth properties — with a temporary weatherproof cover if needed today. View service ### EPDM Rubber Roofing Single-sheet EPDM rubber for garages, extensions and small commercial units in Great Yarmouth. Long life, no seams over most spans. View service ### Single-Ply Membrane (SFlex · Sika Plan · Resitrix) Sika Plan, SFlex and Resitrix single-ply for larger domestic and commercial roofs in Great Yarmouth. Mechanically fixed to wind-uplift spec. View service ### Commercial Flat Roofing Retail, office, light-industrial and agricultural flat roofs across Great Yarmouth. Fully insured, Sika Plan Approved workmanship. View service ### Fascias & Soffits (UPVC) UPVC fascias and soffits fitted in Great Yarmouth — sealed, ventilated properly, and finished to match your roofline. View service ### Guttering & Bargeboards Full guttering and bargeboard runs in Great Yarmouth. UPVC systems rated for the exposure your property actually sees. View service ### Cladding — UPVC, Timber-Effect & Composite UPVC, timber-effect and composite cladding across Great Yarmouth — low-maintenance, weather-tight, and finished properly at corners and abutments. View service Why Great Yarmouth customers use us ## The concrete reasons — not a mission statement. ### Coastal specification, not generic build-up Membranes, fixings and flashings are chosen for the wind-uplift zone the roof actually sits in — not a generic domestic build-up applied to a seafront roof. ### Sika Plan Approved — the guarantee travels The 20-year product / 10-year workmanship guarantee applies exactly the same in Yarmouth as in Norwich. Sika inspect and stand behind the work. ### One trip, everything sorted We batch surveys and works around the county so a Great Yarmouth or Gorleston job isn't more expensive than a Norwich one — no fake travel loadings. Local conditions ## What actually goes wrong on Great Yarmouth roofs. ### North Sea wind loads The prevailing wind hits Yarmouth's roofs hard. Any membrane that isn't fixed to the correct wind-uplift specification will lift at the perimeter first. We calculate perimeter, corner and field zones properly and use mechanically-fixed single-ply with the fastener density the zone actually needs. ### Salt and coastal exposure Salt spray corrodes fixings, degrades cheap flashings and eats through unlisted aluminium guttering within a decade. We use stainless-steel fixings on exposed roofs, spec Sika-compatible flashings and fit UPVC roofline products rated for coastal exposure. ### Ageing housing stock on the seafront A lot of Yarmouth's seafront and North Denes stock has flat roofs on tired timber decks that were never designed for today's insulation loads. We strip, inspect the deck, upgrade to a warm-roof build-up that meets Part L, and re-detail parapet abutments so water actually leaves the roof. ### Emergency response after storms A single winter storm can put a dozen Yarmouth roofs into failure at once. We prioritise active leaks with a temporary weatherproof cover, then quote the permanent fix in writing — no pressure to sign on the day. Our process ## A predictable path from first call to guaranteed sign-off. - 01 Free on-site survey We visit your Great Yarmouth property, get on the roof (or safely inspect it), and check the deck, falls, upstands and outlets — not just the surface. - 02 Fixed written quote in 3–4 days You get a written, itemised, fixed-price quote. No day-rates, no hidden extras, no pressure — decide in your own time. - 03 Book a slot that suits you Once you approve the quote, we agree a start date that works around you. Materials are ordered direct from Sika. - 04 Installation by Neil Neil installs the job personally with a small dedicated team. Site is kept tidy, protected and safe throughout. - 05 Sign-off & registered guarantee On completion we walk the finished roof with you, register the Sika-backed guarantee in your name and issue paperwork you can pass on if you sell. Frequently asked in Great Yarmouth ## Questions we answer at almost every Great Yarmouth survey. Do you cover Gorleston, Caister and Hemsby as well as Great Yarmouth?+Yes — all of NR30, NR31 and NR29. Gorleston-on-Sea, Bradwell, Belton, Hopton, Caister, Ormesby, Hemsby and Winterton are covered on the same rates and timescales as central Yarmouth. How do you handle coastal wind uplift?+Every roof is assessed for wind-uplift zone (perimeter, corner, field) and the mechanical fixing density is set to the manufacturer's calculation, not a rule of thumb. On exposed seafront roofs we use stainless-steel fixings and Sika-compatible cap flashings throughout. How fast can you reach a leak on the Yarmouth seafront?+We aim to get eyes on active leaks within 2–3 working days in operating hours and can put a temporary weatherproof cover on the same visit. Permanent repair is quoted in writing within 3–4 days. How much does a flat roof cost in Great Yarmouth?+We don't quote by rate card because no two Great Yarmouth properties are identical — a Victorian rear extension and a 1970s garage conversion need different membranes, insulation upgrades and detailing. Every price is a fixed written quote after a free on-site survey, so you know the number before we lift a tool. Small repairs typically start in the low hundreds; a full single-ply or EPDM replacement is priced per square metre plus upstands, outlets and any timber deck renewal. Do you offer emergency call-outs in Great Yarmouth?+Yes — for active leaks, storm damage and wind-lifted membranes we prioritise Great Yarmouth customers within our operating hours (Mon–Sat 7am–6pm). We'll get a temporary weatherproof cover in place and quote the permanent repair separately. There are no call-out fees. Are you insured and accredited to work in Great Yarmouth?+Yes. Full Public and Employer's Liability insurance, and we're a Sika Plan Approved Installer — meaning Sika inspect our workmanship and back the membrane guarantee. That accreditation applies to every Great Yarmouth job the same as anywhere else we work. Who will actually turn up at my Great Yarmouth property?+Neil, the owner, personally surveys, quotes and installs every job. You won't get passed to a call centre, a sales rep or a subcontracted crew. One point of contact from first call to final sign-off — and the person who quoted it is the person on the roof. Nearby areas ## We also cover these areas close to Great Yarmouth. Norfolk Flat Roofing in Norwich Sika Plan Approved installers based in NR5. Free surveys, fixed written quotes in 3–4 days, and a 20-year product / 10-year workmanship guarantee — right across the city. Norfolk Flat Roofing in Thorpe St Andrew & Sprowston Sika Plan Approved flat roof installers across Thorpe St Andrew & Sprowston and the surrounding NR7 postcodes. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. Or see the full list of areas we cover across Norfolk, Suffolk and Cambridgeshire — or head back to the home page. One next step ## Get a fixed written quote for your Great Yarmouth flat roof — in 3–4 days. Free survey. No call-out fees. Sika Plan Approved. 20-year product / 10-year workmanship guarantee. Neil quotes it and Neil installs it. Book my free survey Call 07447 188036 Mon–Sat 7am–6pm Flat-roofing specialists serving homes and businesses across East Anglia. Sika Plan Approved. Fully insured. Owner-run by Neil Cockman. Sika Plan Approved Installer ### Services - Flat Roof Installation - Flat Roof Replacement - Flat Roof Repairs - EPDM Rubber Roofing - Single-Ply Membrane - Commercial Flat Roofing - Fascias & Soffits ### Service Areas - Norwich - Thorpe St Andrew & Sprowston - Hellesdon - Costessey - Taverham - Drayton - Cringleford - Wymondham - Dereham - Great Yarmouth - Thetford - King's Lynn - Norfolk (county overview) - Suffolk (county overview) - Cambridgeshire (county overview) ### Contact - 07447 188036 - info@gnbroofing.co.uk - 6 Gilbard RoadNorwich, NR5 8TR - Mon–Sat 7am–6pm · Closed Sun © 2026 GNB Roofing Services. All rights reserved.Privacy PolicyCookie PolicyTerms & Conditions Call NowGet Free Quote We use essential cookies to make this site work, and optional ones only if you accept. Cookie policy. AcceptReject