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 - Thetford Norfolk · Serving Breckland from our Norwich yard # Flat Roofingin Thetford& Breckland Sika Plan Approved flat roof specialists across IP24 and the surrounding Breckland villages. Free surveys, no call-out fees, fixed written quote in 3–4 days. Get my free fixed-price quote 07447 188036 Survey within the week across IP24 and surrounding villages · 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 Thetford — properly. Thetford sits on the Norfolk–Suffolk border and we work both sides of it. The town's post-war expansion left a lot of housing with flat porch canopies, garage roofs and rear-extension flats — all of which reach end-of-life around the same time. We treat Thetford the same as Norwich: survey properly, spec the right system, put the price in writing. ### Where we cover in Norfolk IP24 (Thetford town, Redcastle, Abbey estate, Cloverfields) and the surrounding villages — Brandon, Mundford, Watton, East Harling, Attleborough (NR17) and the A11 corridor down to Elveden. ### Response times Survey within the week across IP24 and surrounding villages. Emergency leaks and storm damage are prioritised within our operating hours (Mon–Sat 7am–6pm). ### Thetford property types we know Large stock of 1960s–70s expansion housing with flat garage and porch roofs, post-2000 estates with warm-deck dormers, MOD-associated housing around Kilverstone and Croxton, and rural cottages in the Breckland villages with felted rear extensions. ### Common jobs in Thetford End-of-life garage roofs from the town's post-war expansion, leaking porch canopies, tired felt on rear-extension flats and full single-ply replacements. We fit a lot of new UPVC fascia and guttering in Thetford where the original aluminium is corroded through. Services in Thetford ## Every service we offer is available in Thetford. ### Flat Roof Installation New-build and extension flat roofs in Thetford, 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 Thetford. EPDM, Sika Plan or Resitrix. View service ### Flat Roof Repairs Leaks, splits, blisters and storm damage fixed on Thetford 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 Thetford. 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 Thetford. Mechanically fixed to wind-uplift spec. View service ### Commercial Flat Roofing Retail, office, light-industrial and agricultural flat roofs across Thetford. Fully insured, Sika Plan Approved workmanship. View service ### Fascias & Soffits (UPVC) UPVC fascias and soffits fitted in Thetford — sealed, ventilated properly, and finished to match your roofline. View service ### Guttering & Bargeboards Full guttering and bargeboard runs in Thetford. UPVC systems rated for the exposure your property actually sees. View service ### Cladding — UPVC, Timber-Effect & Composite UPVC, timber-effect and composite cladding across Thetford — low-maintenance, weather-tight, and finished properly at corners and abutments. View service Why Thetford customers use us ## The concrete reasons — not a mission statement. ### A11 corridor is a normal week Thetford, Attleborough, Wymondham and the A11 corridor are on our route weekly. No inflated travel cost. ### Sika Plan Approved workmanship Same 20-year product / 10-year workmanship guarantee as any other job on our books. Registered with Sika. ### One quote, one price, one installer Neil surveys, quotes and installs. No handoff, no subcontractor markup. Local conditions ## What actually goes wrong on Thetford roofs. ### Post-war expansion housing at end-of-life Thetford's post-war housing was built quickly with basic felt-over-deck flats. Fifty-plus years on, most are past economic repair. We strip back, renew rotten deck, upgrade insulation to current standards and install EPDM or Sika Plan single-ply as a warm-roof build-up. ### Breckland exposure and pine-forest debris Sat inside Thetford Forest, roofs pick up needles, cones and organic debris that block outlets and hold water. We fit oversized outlets and grated leaf-guards where the tree line is close, and clear existing outlets on every survey. ### Big temperature swings Breckland is one of the driest, most temperature-extreme parts of the UK. Cheap felt cracks, GRP crazes. Single-ply membranes and EPDM handle the swing much better and are what we recommend for anything long-term. ### Mixed rural detailing Village-cottage flat roofs are often add-ons with poor falls and awkward abutments to old brick or flint walls. We re-form falls, tie into abutments with proper cap flashings, and stop the roof ponding. Our process ## A predictable path from first call to guaranteed sign-off. - 01 Free on-site survey We visit your Thetford 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 Thetford ## Questions we answer at almost every Thetford survey. Do you cover Brandon, Watton and Attleborough as well as Thetford?+Yes — Brandon, Watton, East Harling, Attleborough (NR17), Mundford and the surrounding Breckland villages are all part of our regular working area. Can you replace a 1960s garage roof in Thetford?+Yes — it's one of the most common jobs we do in Thetford. Typically we strip the old felt, renew any softened deck, add insulation to bring it up to warm-roof spec, and install EPDM or Sika Plan single-ply with a proper drip-edge detail. How fast can you reach Thetford for a leak?+Active leaks in IP24 usually get a first visit within 2–3 working days in operating hours (Mon–Sat 7am–6pm). We can fit a temporary weatherproof cover on the same visit. How much does a flat roof cost in Thetford?+We don't quote by rate card because no two Thetford 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 Thetford?+Yes — for active leaks, storm damage and wind-lifted membranes we prioritise Thetford 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 Thetford?+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 Thetford job the same as anywhere else we work. Who will actually turn up at my Thetford 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 Thetford. Norfolk Flat Roofing in Wymondham Sika Plan Approved flat roof installers across Wymondham and the surrounding NR18 postcodes. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. 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. County overview Flat Roofing in Suffolk (county overview) Sika Plan Approved flat roof specialists working right across Suffolk. 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 Thetford 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