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 - Services - Cladding — UPVC, Timber-Effect & Composite Cladding — UPVC, Timber-Effect & Composite # UPVC, Timber-Effect& Composite CladdingAcross East Anglia Long-life external cladding — UPVC, timber-effect and composite — installed on correct battens with proper ventilation, colour-matched to the property, for a fixed written price. Get my free fixed-price quote 07447 188036 Free survey · No call-out fees · Written quote in 3–4 days · 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 Service overview ## What we do, who it's for, and when to book it. ### What it is Installation of external wall cladding in UPVC shiplap, timber-effect foil-wrapped UPVC, and composite board systems for gable ends, feature walls, dormers and full elevations. ### Who it's for Homeowners upgrading a tired render or pebbledash finish, extension owners wanting a modern feature elevation, and anyone eliminating perpetually failing timber weatherboarding. ### When it's needed When existing render is cracked and letting water in, when timber cladding is beyond a repaint, or as part of a wider roofline / dormer refresh. ### Why it matters Correctly installed cladding is essentially maintenance-free for its design life — no more repainting, no more re-rendering, no more soft timber patches every few years. The cost of leaving it ## What actually happens when this is put off. ### If it's ignored - Failed render behind cladding traps moisture against the wall — hidden damp for years before it shows internally. - Cladding fitted directly against the wall with no battens or ventilation gap prevents the wall drying out. - Cheap thin cladding warps and yellows in a few summers — a false economy that costs twice. ### Common mistakes we clean up after - Skipping battens and fixing cladding straight to the wall — kills the drainage cavity and rots the substrate. - Ignoring detailing at window and door reveals — where 90% of cladding leaks originate. - Choosing a colour without checking a sample against the property in daylight — foil-wrap tones shift dramatically with light. Our process ## A predictable path from first call to guaranteed sign-off. - 01 Free survey Substrate check, colour and profile discussion, samples on request. - 02 Fixed written quote Named product, colour, spec and price in 3–4 days. - 03 Substrate prep Any failed render addressed, breather membrane fitted where required. - 04 Battens & ventilation Treated timber battens installed to give a properly vented drainage cavity behind the cladding. - 05 Cladding install & detailing Cladding fitted with correct expansion allowance, reveals dressed cleanly, trims colour-matched, site cleaned. What you actually get ## The outcomes — not the sales talk. Maintenance-free finish No repaints, no re-render, no soft-timber repairs. Colour-fast product options Modern UPVC and composite cladding is engineered to resist UV fade for decades. Correct ventilation Battens and cavity always specified — protects the wall behind. 10-year workmanship guarantee Written, from GNB Flat Roofing. Fixed price, no call-out fees Free survey, fixed quote in 3–4 days. PL & EL insured Full liability cover for every job. Specification detail ## The technical honest version. Cladding is only as good as the batten system, ventilation and detailing behind it. The material choice is real, but the install decides the life. ### UPVC shiplap cladding Classic clean weatherboard look in a range of colours. Lightweight, easy to detail around windows and eaves. ### Timber-effect (foil-wrapped) UPVC The look of stained timber without the maintenance — colours from light oak to almost-black anthracite. ### Composite cladding A denser, more substantial board — colour-through, impact-resistant, and often preferred on contemporary elevations. ### Batten system and cavity Treated timber battens create a drained, ventilated cavity behind the cladding — critical for wall breathability and product life. ### Window and door detailing Reveals dressed with matching trims and correctly lapped flashings — where cheap installs leak within a season. ### Feature walls vs full elevations Cladding can be used as a feature (gable end, dormer, entrance) or across a full elevation. Both are priced individually at survey. Frequently asked ## Questions we answer at almost every survey. Is cladding really maintenance-free?+In practical terms, yes — an occasional soft wash. No repainting, no re-rendering, no rot cycles. Will it fade in sunlight?+Modern colour-through and foil-wrap products are engineered to resist UV fade for decades. We'll show current fade-warranty documentation at survey. Can you clad over existing render?+In most cases, yes — provided the render is bonded and sound. Where it's blown or wet, we'll address it first rather than trap the problem behind the cladding. How long does installation take?+A gable end or feature wall is usually 1–2 days; a full elevation depends on size and access — always in the fixed quote, never a running total. Do you match cladding to fascias and soffits?+Yes — that's part of the point. We'll colour-coordinate the whole roofline and cladding envelope. Is the cladding guaranteed?+Yes — manufacturer product warranty on the cladding plus our 10-year written workmanship guarantee. Do you cover the whole of Norfolk, Suffolk & Cambridgeshire?+Yes. We're based in Norwich (NR5) and work across Norfolk, Suffolk and Cambridgeshire — including all the Norwich suburbs (Thorpe St Andrew, Sprowston, Hellesdon, Costessey, Taverham, Drayton, Cringleford), Wymondham, Dereham, Thetford, Great Yarmouth and King's Lynn. If you're on the edge of that area, phone and ask — we don't charge to travel to quote. Do you charge call-out fees?+No. Surveys and quotes are free, and there are no call-out fees. You get a fixed written price before any work starts — no day-rates, no hidden extras. Who will I actually deal with?+Neil, the owner, personally quotes and runs every job. You won't be handed to a call centre or a subcontracted crew. One point of contact from first call to final sign-off. Where we cover ## Cladding — UPVC, Timber-Effect & Composite across Norfolk, Suffolk & Cambridgeshire. NorwichThorpe St Andrew & SprowstonHellesdonCostesseyTaverhamDraytonCringlefordWymondhamDerehamGreat YarmouthThetfordKing's LynnNorfolk (county overview)Suffolk (county overview)Cambridgeshire (county overview) Related services ## Also worth looking at. Fascias & Soffits (UPVC) Replace tired timber fascias and soffits with maintenance-free UPVC — colour-matched to your roofline, correctly ventilated to protect the roof void, fixed price with no call-out fees. View service Guttering & Bargeboards Watertight guttering and long-life UPVC bargeboards — installed with correct falls to outlet, sealed properly at every joint, fixed price with no call-out fees. View service Flat Roof Installation A properly specified, single-ply or EPDM flat roof — installed by a Sika Plan Approved Installer, guaranteed 20 years on materials and 10 years on workmanship, for a fixed written price with zero call-out fees. View service One next step ## Get a fixed written quote for your cladding — upvc, timber-effect & composite — 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 Flat Roofing Services. All rights reserved.Privacy PolicyCookie PolicyTerms & Conditions Call NowGet Free Quote