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 We CoverAreas covered # Flat roofing acrossNorfolk, Suffolk &Cambridgeshire. Based in Norwich (NR5). We cover the cities, towns and villages across three counties — with the same Sika Plan Approved workmanship and 20-year guarantee wherever we work. Get a fixed-price quote 07447 188036 Flat-roofing specialist Sika Plan Approved Installer 20-yr product / 10-yr workmanship 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. View area 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. View area 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. View area Norfolk ## Flat Roofing in Costessey Sika Plan Approved flat roof installers across Costessey and the surrounding NR5, NR8 postcodes. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. View area Norfolk ## Flat Roofing in Taverham Sika Plan Approved flat roof installers across Taverham and the surrounding NR8 postcodes. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. View area Norfolk ## Flat Roofing in Drayton Sika Plan Approved flat roof installers across Drayton and the surrounding NR8 postcodes. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. View area Norfolk ## Flat Roofing in Cringleford Sika Plan Approved flat roof installers across Cringleford and the surrounding NR4 postcodes. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. View area 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. View area Norfolk ## Flat Roofing in Dereham Sika Plan Approved flat roof installers across Dereham and the surrounding NR19, NR20 postcodes. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. View area 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. View area Norfolk ## Flat Roofing in Thetford 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. View area Norfolk ## Flat Roofing in King's Lynn Sika Plan Approved flat roof specialists across PE30–PE34. Free surveys, no call-out fees, fixed written quote in 3–4 days — from a specialist, not a generalist. View area County overview ## Flat Roofing in Norfolk (county overview) Sika Plan Approved flat roof specialists working right across Norfolk. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. View area 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. View area County overview ## Flat Roofing in Cambridgeshire (county overview) Sika Plan Approved flat roof specialists working right across Cambridgeshire. Free surveys, fixed written quote in 3–4 days, 20-year product / 10-year workmanship guarantee. View area 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