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 - Thorpe St Andrew & Sprowston Norfolk · 10 minutes from our NR5 yard · Local rates, no travel loading # Flat RoofingSpecialists inThorpe 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. Get my free fixed-price quote 07447 188036 Same-week survey — typically 2–3 working days across NR7 · 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 Thorpe St Andrew & Sprowston — properly. Thorpe St Andrew and Sprowston sit on the eastern edge of Norwich and we're on those roofs almost every week. The mix of Edwardian villas along Yarmouth Road, 1930s semis through Sprowston and Thorpe End, and newer estates around Rackheath means every survey is different — but the failures are familiar. ### Where we cover in Norfolk NR7 in full — Thorpe St Andrew, Thorpe End, Thorpe Hamlet edge, Sprowston, Old Catton, Rackheath and the villages out to Salhouse and Wroxham Road. ### Response times Same-week survey — typically 2–3 working days across NR7. Emergency leaks and storm damage are prioritised within our operating hours (Mon–Sat 7am–6pm). ### Thorpe St Andrew & Sprowston property types we know Edwardian and interwar bay-fronted villas along Yarmouth Road and Plumstead Road with tile-and-felt porch canopies, 1930s and post-war semis through Sprowston with rear-extension flats, larger detached properties in Thorpe End, and modern new-build across Rackheath with warm-deck dormer flats. ### Common jobs in Thorpe St Andrew & Sprowston Failing felt on 1930s porch canopies, splits on 1970s asphalt garage roofs, rear-extension flat replacements, and full UPVC fascia / soffit / guttering refits where the timbers have finally rotted through. Services in Thorpe St Andrew & Sprowston ## Every service we offer is available in Thorpe St Andrew & Sprowston. ### Flat Roof Installation New-build and extension flat roofs in Thorpe St Andrew & Sprowston, 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 Thorpe St Andrew & Sprowston. EPDM, Sika Plan or Resitrix. View service ### Flat Roof Repairs Leaks, splits, blisters and storm damage fixed on Thorpe St Andrew & Sprowston 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 Thorpe St Andrew & Sprowston. 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 Thorpe St Andrew & Sprowston. Mechanically fixed to wind-uplift spec. View service ### Commercial Flat Roofing Retail, office, light-industrial and agricultural flat roofs across Thorpe St Andrew & Sprowston. Fully insured, Sika Plan Approved workmanship. View service ### Fascias & Soffits (UPVC) UPVC fascias and soffits fitted in Thorpe St Andrew & Sprowston — sealed, ventilated properly, and finished to match your roofline. View service ### Guttering & Bargeboards Full guttering and bargeboard runs in Thorpe St Andrew & Sprowston. UPVC systems rated for the exposure your property actually sees. View service ### Cladding — UPVC, Timber-Effect & Composite UPVC, timber-effect and composite cladding across Thorpe St Andrew & Sprowston — low-maintenance, weather-tight, and finished properly at corners and abutments. View service Why Thorpe St Andrew & Sprowston customers use us ## The concrete reasons — not a mission statement. ### Thorpe St Andrew & Sprowston is on our doorstep Our yard is in Norwich NR5. Thorpe St Andrew & Sprowston is a short drive and part of our normal working week — surveys are quick, snag returns are quick, and there is no padded travel cost on the quote. ### Flat-roofing specialist, not a general trader Flat roofing and roofline is our specialism. If the answer is a repair rather than a replacement, that's what you'll be quoted for. ### Sika Plan Approved workmanship 20-year product / 10-year workmanship guarantee, registered in your name with Sika. The paperwork travels with the property if you sell. ### One quote, one price, one installer Neil surveys, quotes and installs. Fixed written quote in 3–4 days, no day-rates, no hidden extras and no subcontractor mark-up. Local conditions ## What actually goes wrong on Thorpe St Andrew & Sprowston roofs. ### 1930s porch and bay canopies at end-of-life A huge share of Thorpe and Sprowston stock has small felted porch or bay canopies that were never designed to last a century. Once they blister they leak into the room below. We strip back to the deck, upgrade insulation and re-cover in EPDM or Sika Plan single-ply with a proper drip edge. ### Mature tree cover blocking outlets Yarmouth Road and the older Sprowston streets are heavily tree-lined. Blocked outlets cause ponding, which finds the weakest lap. We check outlets on every survey and can upsize or add leaf-guards where the tree line is close. ### Exposed roofs on the Broadland edge Roofs at Thorpe End and Rackheath catch the wind coming in off the Broads. Membranes need proper wind-uplift fixing at the perimeter — not just glued down and hoped for. ### Mixed roofline age across the estates 1930s stock has original timber fascias behind failing aluminium; newer estates have thin builder-grade UPVC that discolours quickly. We spec full 500mm rated UPVC and correct-gauge guttering rather than like-for-like replacement. Our process ## A predictable path from first call to guaranteed sign-off. - 01 Free on-site survey We visit your Thorpe St Andrew & Sprowston 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 Thorpe St Andrew & Sprowston ## Questions we answer at almost every Thorpe St Andrew & Sprowston survey. Do you cover Old Catton, Rackheath and Thorpe End as well as central Thorpe and Sprowston?+Yes — the full NR7 postcode including Old Catton, Thorpe End, Rackheath, Little Plumstead and the surrounding villages out toward Salhouse and Wroxham Road are all on our normal weekly route. How fast can you reach Thorpe St Andrew & Sprowston for a leak?+Active leaks in NR7 usually get a first visit within 2–3 working days in operating hours (Mon–Sat 7am–6pm). Temporary weatherproof cover is fitted on the same visit if the leak is active, and the permanent repair is quoted in writing within 3–4 days. How much does a flat roof cost in Thorpe St Andrew & Sprowston?+We don't quote by rate card because no two Thorpe St Andrew & Sprowston 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 Thorpe St Andrew & Sprowston?+Yes — for active leaks, storm damage and wind-lifted membranes we prioritise Thorpe St Andrew & Sprowston 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 Thorpe St Andrew & Sprowston?+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 Thorpe St Andrew & Sprowston job the same as anywhere else we work. Who will actually turn up at my Thorpe St Andrew & Sprowston 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 Thorpe St Andrew & Sprowston. 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 Hellesdon Sika Plan Approved flat roof installers across Hellesdon and the surrounding NR6 postcodes. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. Norfolk Flat Roofing in Great Yarmouth 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. 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 Thorpe St Andrew & Sprowston 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