Based in Crick | South Wales & West of England07517 190213liambrinkworth@gmail.com£5m public liability · Free surveys AboutServicesAll flat roofing services →GRP Fibreglass Flat RoofingLiquid Roofing SystemsLiquid Roofing RepairsFlat Roof ReplacementEmergency Leak Call-OutsFree Roof Surveys & QuotesFlat Roof Leak RepairsGarage Roof ReplacementExtension & Dormer Flat RoofsBalcony & Terrace WaterproofingCommercial Flat Roofing AreasAll areas covered →BristolBathNewportChepstowSomersetGloucestershireCaldicotMonmouthshireCwmbranThornburyPortisheadWeston-super-MareMagorUskPontypoolLydneyKeynshamClevedonYateBradley Stoke ReviewsContactGet a Free Quote - Home - /Flat Roofing Services - /Garage Roof Replacement # Garage Roof Replacement in Crick Keep your car, tools and storage dry with a new GRP or liquid garage roof, with a 10–20 year installation guarantee depending on system and matting. Free survey and tailored quote. Request a Free Quote 07517 190213 - £5m Public Liability Public liability insurance - Approved Installer Liquid roof systems - Installation Guarantee 10–20 years; system and matting dependent - Free Survey & Quote No obligation - Emergency Call-Outs For active leaks The service ## What garage roof replacement involves Garage roofs are often the first flat roofs on a property to fail. Older garages may have felt or sheet coverings that have deteriorated, and because garages aren't lived in, leaks can go unnoticed until the damage is significant. LMB replaces garage roofs with GRP fibreglass or liquid roofing systems. Both can form a continuous waterproofing surface when suitable for the roof and installed as specified. As with every job, the existing roof and deck are surveyed first. Where the deck is sound, it may be reused; where it's damaged, it's replaced so the new roof sits on a solid base. ### Who it's for - Homeowners with a leaking attached or detached garage - Anyone converting a garage into a gym, office or workshop - Properties with ageing felt garage roofs - Owners storing valuable tools, vehicles or belongings ### When you need it - Drips or puddles appear inside the garage after rain - The felt is cracked, split or covered in moss - The roof sags or feels soft - You're planning to convert or upgrade the garageWhy use a specialist? Flat roofs fail at details: upstands, edges, outlets and joints. LMB focuses only on GRP and liquid roofing; the survey considers these details before work is specified. If it's ignored ## What waiting really costs Because garages aren't checked daily, leaks can run for months. By the time it's noticed, the deck and joists may already be compromised. ### Damaged contents Tools, bikes, vehicles and stored items suffer from damp and rust. ### Rotten structure Long-term leaks rot decking and can affect joists. ### Damp into the house On attached garages, water can track into adjoining walls. ### Blocked conversion plans A failing roof has to be sorted before any garage conversion. ### Common issues to avoid - Choosing a covering without assessing suitability - Ignoring a garage leak because it's 'only the garage' - Overlaying onto a soft deck - Converting a garage without upgrading the roof first Our process ## Five clear steps, start to finish - Step 1 ### Inspection Liam visits and inspects the covering, deck, edges, upstands, outlets and any penetrations. Free of charge. - Step 2 ### Diagnosis You get a plain-English explanation of what's wrong, what's causing it and the options: repair, overlay or replace. - Step 3 ### Written quote A tailored price for your roof with the system, scope and guarantee set out clearly. No fixed rates; any scope changes are discussed separately. - Step 4 ### Installation Preparation, deck repairs where needed, and the GRP or liquid system applied to the correct method in suitable weather. - Step 5 ### Check and guarantee Completed work checked and the applicable terms confirmed. Installation guarantees are 10–20 years, depending on the system and matting; repair terms must be agreed separately. What you get ## The benefits, in plain terms ### Dry storage A continuous roof that keeps contents protected. ### Long guarantee 10–20 years for installations, depending on system and matting. ### Clean finish Neat trims and topcoat that look tidy from the house. ### Conversion planning Roof condition is one consideration; conversion suitability and any permissions need separate assessment. ### Free quote Survey and written price at no cost. ### Insured £5 million public liability cover. In detail ## Garage Roof Replacement: materials, methods and options ### GRP or liquid for a garage? For most garage roofs with a straightforward shape, GRP gives a rigid, crisp and long-lasting finish. Where the garage roof has awkward junctions with the house, or the existing covering is sound enough to overlay, a liquid system may be the better option. Liam will recommend the right one after the survey. ### What the work involves The old covering is removed and the deck checked. Damaged boards are replaced. For GRP, trims are fitted, the laminate is laid and the topcoat applied. For liquid, the surface is primed and the membrane applied, reinforced where required. Outlets and gutters are checked so water drains properly. ### Attached and detached garages On attached garages, the junction with the house wall is a common leak point, so upstands are detailed carefully. On detached garages, edges and drainage are the main focus. ### Where we work We carry out garage roof replacement from our base in Crick, near Chepstow, across Bristol, Bath, Newport, Chepstow, Somerset, Gloucestershire, Caldicot, Monmouthshire, Cwmbran, Thornbury, Portishead, Weston-super-Mare, Magor, Usk, Pontypool, Lydney, Keynsham, Clevedon, Yate, Bradley Stoke. See the areas we cover. - Flat roofing Bristol - Flat roofing Bath - Flat roofing Newport - Flat roofing Chepstow - Flat roofing Somerset - Flat roofing Gloucestershire - Flat roofing Caldicot - Flat roofing Monmouthshire - Flat roofing Cwmbran - Flat roofing Thornbury - Flat roofing Portishead - Flat roofing Weston-super-Mare - Flat roofing Magor - Flat roofing Usk - Flat roofing Pontypool - Flat roofing Lydney - Flat roofing Keynsham - Flat roofing Clevedon - Flat roofing Yate - Flat roofing Bradley Stoke Why a specialist ## Why choose a GRP and liquid only roofer Many roofers offer every type of flat roof covering: felt, rubber, asphalt and fibreglass. LMB deliberately doesn't. We work only with GRP fibreglass and approved liquid roofing systems, because both create a single, continuous waterproof surface with properly specified junctions and details. That focus shapes every recommendation we make for garage roof replacement. We aren't trying to sell you whichever product we happen to stock. We're choosing between two modern systems on the basis of what your roof actually needs: its size, shape, deck condition, drainage, details and how it will be used. Liam Brinkworth owns and runs the business. Contact Liam to discuss the survey, proposed work and quotation. LMB holds £5 million public liability insurance. Liquid systems are applied as an approved installer, and installations come with a guarantee of 10 to 20 years depending on the system specified and whether it requires matting. What affects the price of garage roof replacement? The main factors are the roof area, how easy it is to reach, the condition of the existing deck, how many details there are (pipes, vents, rooflights, upstands and outlets), whether the old covering needs stripping, and which system is specified. That is why we never quote a fixed rate. The free survey looks at each of these on your roof, so the written quote reflects the real job and the proposed scope is clear. Any changes should be discussed before additional work is agreed. Before you call ## How to check your flat roof safely You don't need to climb onto a roof to spot most warning signs. From an upstairs window, the garden or the ground, look for cracked or blistered surfaces, moss or vegetation growing on the roof, water that stays ponded for days after rain, lifted or broken edge trims, and gaps where the roof meets a wall. Inside, check the ceilings under the flat roof for brown stains, bubbling paint or plaster, and any damp or musty smell. Stains that grow after heavy rain are a clear sign water is getting in, even if you never see a drip. If you can, take a few photos and note when the problem appears: after every shower, only in heavy rain, or only in wind-driven rain. That detail helps narrow down the cause before the survey and makes your free quote more accurate. Please don't climb onto or walk on a roof to inspect it. A soft deck can give way, and wet roofs are slippery. Leave that part to us. If water is actively coming in, call us for an emergency call-out rather than waiting. Ready to get it looked at? Request your free survey or go back to the homepage. Questions ## Garage Roof Replacement FAQs ### How much does a garage roof replacement cost? +We're quote-only because every garage differs in size, access and deck condition. The survey and quote are free. ### What guarantee do I get? +10–20 years for installations, depending on the specified system and matting. ### Can you replace a felt garage roof? +Yes. We strip the felt and replace it with GRP or a liquid system. ### Do I need to empty the garage? +We'll advise during the survey. In many cases only items directly below the work area need moving. ### How long does it take? +It depends on size, deck condition and weather. The quote will set out the timeline. ### Is GRP good for a garage conversion? +GRP may be an option for a suitable roof. Structural, insulation and other conversion requirements need separate assessment. ### How much will it cost? +We're strictly quote-only. Every roof differs in size, access, condition and detailing, so a fixed rate would not reflect the work needed on your property. The survey and written quote are free, so you'll know the exact cost before you commit to anything. ### Are you insured? +Yes. LMB holds £5 million public liability insurance. ### Do you cover my area? +We cover Bristol, Bath, Newport, Chepstow, Somerset and Gloucestershire from our base in Crick, near Chepstow. If you're nearby and unsure, call and ask. ## All flat roofing services ### GRP Fibreglass Flat Roofing GRP fibreglass roofing for suitable extensions, garages and dormers. GRP Fibreglass Flat Roofing → ### Liquid Roofing Systems A liquid membrane that cures into one continuous waterproof skin around every detail. Liquid Roofing Systems → ### Liquid Roofing Repairs Targeted sealing for leaking or worn flat roofs, without paying for a full replacement. Liquid Roofing Repairs → ### Flat Roof Replacement Failed roofs stripped back and replaced with a modern GRP or liquid system. Flat Roof Replacement → ### Emergency Leak Call-Outs Emergency call-outs for active flat roof leaks; call to check availability. Emergency Leak Call-Outs → ### Free Roof Surveys & Quotes A no-cost inspection and a clear, written price tailored to your roof. Free Roof Surveys & Quotes → ### Flat Roof Leak Repairs Tracing and fixing leaks at the source, with honest repair-or-replace advice. Flat Roof Leak Repairs → ### Garage Roof Replacement Leaking garage roofs replaced with continuous GRP or liquid systems. Garage Roof Replacement → ### Extension & Dormer Flat Roofs Neat, continuous roofs for new and existing extensions and dormers. Extension & Dormer Flat Roofs → ### Balcony & Terrace Waterproofing Continuous liquid waterproofing for balconies, terraces and walkable roofs. Balcony & Terrace Waterproofing → ### Commercial Flat Roofing GRP and liquid roofing for offices, units and commercial buildings. Commercial Flat Roofing → ## Keep your garage dry.Get a free quote. Free survey. Tailored written quote. £5m public liability insurance. Approved liquid installer. Installation guarantees of 10–20 years, depending on system and matting. Request a Free Quote 07517 190213 Specialist GRP fibreglass and liquid flat roofing for homes and businesses. Customer reviewsLeave a Google review Contact Unit 3, Bentley Green Farm, Crick, NP26 5UT07517 190213liambrinkworth@gmail.comAreas covered Bristol · Bath · Newport · Chepstow · Somerset · Gloucestershire · Caldicot · Monmouthshire · Cwmbran · Thornbury · Portishead · Weston-super-Mare · Magor · Usk · Pontypool · Lydney · Keynsham · Clevedon · Yate · Bradley Stoke Services GRP Fibreglass Flat RoofingLiquid Roofing SystemsLiquid Roofing RepairsFlat Roof ReplacementEmergency Leak Call-OutsFree Roof Surveys & QuotesFlat Roof Leak RepairsGarage Roof ReplacementExtension & Dormer Flat RoofsBalcony & Terrace WaterproofingCommercial Flat Roofing © 2026 LMB Flat Roofing Specialists. All rights reserved. · Privacy Policy · Terms & Conditions · Cookie Policy · Cookie settings 07517 190213Free Quote