Call 24/7: 07832 878937landmarkroofingsloutions@gmail.com Get a Quote HomeServicesFlat RoofingFlat Roofing # Flat RoofingLandmark Roofing Solutions Felt specialists with EPDM and GRP options, explained around the needs of your roof. Request Your QuoteCall 07832 878937 - 10-year warranty on flat roof installations - 24/7 phone, always answered - Family-run, 4-person team - Public & employers’ liability insured Service overview ## Flat Roofing: understand the whole roof A flat roof needs more than a new surface to keep the space beneath it dry. Its supporting deck, insulation, falls and drainage all influence how the covering performs. Landmark Roofing Solutions installs flat roofing for your property, helping you consider the condition of the existing roof alongside the options for renewal. Whether the roof covers an extension, garage, dormer or garden room, the useful starting point is understanding why work is needed. Three-layer felt roofing is the company’s flat roofing specialism, and it is the system owner Robbie Giles prefers. Landmark also installs EPDM rubber and GRP fibreglass roofing. These are different construction methods, not interchangeable finishes: each needs suitable preparation and properly formed junctions. Robbie can explain the options in relation to your roof rather than treating the choice as a contest between material names. Landmark is a family-run business with a four-person team. Customers praise detailed explanations, different options being explored, regular updates, clean and tidy sites, dates being kept and competitive quotes. Those comments describe experiences, not a promise that every roof follows the same programme. Access, weather, hidden deck damage and the agreed specification still shape how individual installations proceed. Flat roof installations carry a 10-year warranty. Where a repair is appropriate instead, qualifying repairs have a five-year warranty, with eligibility and terms to be confirmed with Robbie. For a current leak or an initial conversation, call 07832 878937. The phone is always answered 24/7, and emergency call-outs are available without implying a guaranteed arrival time or that every repair can be completed immediately. ### Check your town Sussex Roofers in Crawley, Roofers in East Grinstead, Roofers in Horsham, Roofers in Haywards Heath, Roofers in Burgess Hill, Roofers in Brighton, Roofers in Worthing, Roofers in Shoreham, Roofers in Hove, Roofers in Peacehaven, Roofers in Seaford, Roofers in Eastbourne Surrey Roofers in Redhill, Roofers in Reigate, Roofers in Horley, Roofers in Oxted, Roofers in Caterham Kent Roofers in Tunbridge Wells, Roofers in Tonbridge, Roofers in Sevenoaks, Roofers in Maidstone, Roofers in Edenbridge Check roofing availability by town →Contact Robbie to confirm availability at your property. Why it can’t wait ## Problems worth investigating before another patch A ceiling stain may be some distance from the leak. Checking the deck and drainage helps establish whether the roof needs a repair or renewal. ### Leaks that return in different places Leaks in several places can mean the covering is wearing out. An inspection helps distinguish that from a local defect which can be repaired. ### Persistent standing water Water remaining after the roof has had a reasonable opportunity to drain can point to inadequate falls, deck deflection or obstructed outlets. A new waterproof layer alone will not correct the underlying roof geometry. The drainage route needs assessing before specifying a replacement covering. ### Soft decking or a sagging surface Movement beneath the covering may indicate moisture-damaged boards or another supporting defect. Avoid walking onto a suspect roof to investigate. The affected area needs safe assessment, and the replacement specification should explain whether deck repairs or further structural investigation are required. ### Deteriorating edges and junctions Water can enter around wall abutments, rooflights, perimeter trims and outlets even when the central covering looks sound. Splits, loose terminations and poorly formed corners need attention. A successful repair or replacement deals with these junctions rather than treating the roof as one uninterrupted sheet. ### Dampness with an uncertain cause Not all moisture beneath a flat roof comes from rain penetration. Condensation can develop where insulation, ventilation or vapour control is unsuitable. Distinguishing between these causes matters because replacing the outer covering without addressing the roof build-up may leave the original problem unresolved. ### Common mistakes we see - Covering wet or unsound deck boards without establishing the extent of damage: trapped moisture and weak support can undermine the new installation. - Choosing a covering on appearance alone: roof shape, drainage, movement, access and the intended use should influence the specification. - Ignoring outlet levels and perimeter details: even a well-installed main covering depends on properly formed edges, upstands and drainage connections. - Treating a warranty as a maintenance plan: outlets still need appropriate checks, and accidental damage or developing defects should be investigated promptly. Our process ## How the job runs, step by step - 01 ### Assess the roof and the reported problem Discuss leaks, previous repairs and how the space beneath is used. Inspect the accessible covering, edges, drainage and supporting construction to identify what needs attention and what may require closer examination. - 02 ### Compare suitable systems and scope Consider three-layer felt, EPDM or GRP against the roof layout and condition. Discuss the proposed approach, preparation and quote arrangements with Robbie. - 03 ### Prepare the roof construction Plan access and protection, remove existing material where required and assess exposed decking. Address agreed deck, insulation and drainage requirements before the roof receives its new waterproof covering. - 04 ### Install the specified waterproofing Use the method appropriate to the selected system, paying particular attention to laps or seams, perimeter trims, wall junctions, rooflights and outlets. These details must work with the main roof surface. - 05 ### Review the finish and ongoing care Check the completed covering and drainage details, explain appropriate maintenance and discuss the 10-year installation warranty. Raise any questions about future access or planned equipment before treating the roof as ready for another use. What you get ## The benefits of doing it properly ### A clearer route through the work Agreeing the deck, insulation, drainage and covering requirements before work starts helps reduce avoidable interruptions. It also makes the likely sequence easier to understand. Weather and concealed defects can still affect progress, so speed should never mean covering a problem before it is assessed. ### Safer decisions about access A roof assessment helps identify fragile areas, perimeter hazards and the access arrangements needed for the work. This keeps attention on safe working methods rather than encouraging homeowners to inspect suspect surfaces themselves. Landmark Roofing Solutions holds full public liability and employers’ liability insurance. ### Better foundations for longevity A suitable covering needs sound support and well-designed details to perform over time. Addressing damaged decking, moisture and drainage alongside the waterproof layer gives the installation a stronger starting point than simply concealing visible deterioration beneath another surface. ### Fewer avoidable repeat costs Repair sound roofs where possible. Where the covering has failed widely, discuss renewal rather than paying repeatedly for patches. ### More dependable water management Falls, outlets and perimeter junctions work together to direct rain away from the building. Treating them as part of the roofing system supports reliability during wet weather. No covering removes the need to keep drainage clear or respond to damage. ### Reassurance through explanation Robbie Giles runs a family business with a four-person team. Customers praise detailed explanations, options explored, daily updates and tidy sites. A 10-year warranty applies to flat roof installations, while qualifying repairs have a five-year warranty with eligibility and terms to be confirmed with Robbie. In detail ## What belongs in a properly considered specification? The visible surface is only one part of a flat roof. Comparing proposals is easier when you understand how the materials, installation method, thermal design and building use fit together. These are the practical details to discuss with Robbie before agreeing the scope. ### Choosing between felt, EPDM and GRP A three-layer felt system uses built-up waterproofing rather than relying on one exposed sheet. A suitable specification combines the initial layer, an intermediate layer and a weathering cap sheet, with laps and junctions arranged as part of the complete system. Mineral-finished caps are commonly used for exposed roofs. Felt is Landmark’s specialism, but the suitability of a particular build-up still depends on the substrate, roof layout and installation requirements. EPDM is a flexible synthetic rubber membrane, often supplied in large sheets that reduce the number of field seams on suitable roofs. GRP uses glass fibre reinforcement and resin to form a laminate, finished with a protective topcoat. EPDM requires compatible adhesives, seams and accessories; GRP requires a suitable deck, controlled resin application and correct edge details. All three systems need sound support and drainage, so the material decision should follow an assessment rather than replace it. ### Renewal means resolving the details A roof can fail at a small junction while most of its surface remains intact. Equally, repeated patches may conceal widespread deterioration. Assessment should consider the existing layers, the extent of moisture damage and the condition of wall abutments, rooflights and outlets. Where renewal is proposed, the scope should distinguish the waterproof covering from any deck replacement, insulation changes or drainage alterations needed to support it. Although the name suggests a level surface, a flat roof needs a workable route for water to drain. Falls may be formed in the supporting construction or through a suitable tapered insulation design. Raising the build-up can affect thresholds, upstands and rooflight kerbs, so these details need checking together. Changing the covering without considering outlet positions or available junction heights can leave important weaknesses untouched. ### Decking, insulation and condensation control Deck boards provide the working base for the waterproofing. Roofing-grade OSB or plywood may be appropriate, but board choice, thickness, support and fixing depend on the particular construction and covering requirements. A deck that looks reasonable from above may still contain local deterioration around old leaks. Where opening up reveals damage, the affected area needs assessing before deciding what can remain. New waterproofing should not be used to hide a weak, wet or inadequately supported substrate. A warm roof generally places insulation above the structural deck, while a cold roof places insulation below it and relies on suitable ventilation arrangements. Neither approach should be selected from a simple label alone. Vapour control, moisture movement, available height and junctions with the existing building all matter. If insulation is being changed, the roof build-up and any applicable building regulations requirements should be considered together, rather than assuming that extra insulation automatically prevents condensation. ### Extensions, garages, dormers and commercial roofs An extension roof over a heated room needs particular attention to thermal performance, internal moisture and rooflight junctions. An unheated garage presents different conditions, but still needs sound decking and reliable drainage. Dormers can have restricted working space and complicated connections to pitched roofing. Garden rooms may introduce several exposed edges and prominent trims. These differences affect the detailing, so a familiar material should not lead to an identical specification for every building. Commercial units may have larger roof areas, more penetrations or access requirements that need discussing before work is planned. Keeping entrances, deliveries and occupied spaces in mind can help establish a workable sequence. A standard waterproof covering is not automatically a walking surface, terrace or base for plant. Where regular access, equipment or a change of use is proposed, the roof structure, protective arrangements and waterproofing details need separate consideration. ### Related services - 3-Layer Felt Flat Roofing - EPDM Rubber Roofing - GRP Fibreglass Roofing - Flat Roof Repairs ### Need it looked at? 07832 878937Phone answered 24/7. FAQs ## Flat Roofing: your questions answered ### How much does flat roofing cost? The price depends on the roof size, its condition and the system specified. Access, damaged decking, insulation changes, outlets and complicated junctions can also affect the scope. Ask Robbie how assessment and quoting will be arranged for your roof. ### How long will the installation take? The programme depends on the roof area, access, strip-off requirements, deck condition and weather. A straightforward garage and a roof with several rooflights will not necessarily take the same time. Discuss the expected sequence with Robbie after inspection, including how unsuitable weather or hidden damage could affect the work. ### Does the existing roof always need stripping off? Not every roof has the same requirements. The condition of the existing covering, trapped moisture, deck stability and compatibility with the proposed system all need checking. An overlay should not be assumed suitable simply because it avoids removal. Where strip-off is needed, it allows the underlying construction to be examined more directly. ### Is three-layer felt always the best choice? Three-layer felt is Landmark’s specialism and Robbie’s preferred flat roofing system, but that does not make it automatically right for every roof. EPDM and GRP are also available. Roof shape, deck condition, junctions, access and the intended use should inform the recommendation. ### What warranty comes with the work? Landmark Roofing Solutions provides a 10-year warranty on flat roof installations. Qualifying repairs have a five-year warranty, with eligibility and terms to be confirmed with Robbie. Ask Robbie to explain the warranty applicable to the quoted work, including its scope, rather than assuming that a small repair receives installation cover. ### How long should a flat roof last? Service life depends on the material, installation quality, exposure, drainage, maintenance and the condition of the supporting roof. There is no single reliable lifespan for every flat roof. The 10-year installation warranty is not a prediction of the roof’s total life, and visible deterioration should be assessed on its own merits. ### Can I call about an emergency leak at night? Yes. Call 07832 878937: the phone is always answered 24/7, and emergency call-outs are available. Explain what you can see from a safe position. Attendance arrangements depend on the circumstances; immediate access or a permanent repair cannot be assumed in unsafe weather. Do not climb onto a leaking or damaged roof. ### Which local areas do you cover? Call Robbie on 07832 878937 with your town or postcode to confirm availability at your property. The town list on this website is for enquiries, not confirmed coverage. ### How should I look after the completed roof? Keep drainage routes clear and arrange safe checks for debris, damaged trims and changes around rooflights or wall junctions. Avoid unnecessary foot traffic and do not use a ladder or walk onto the roof without suitable precautions. Ask about care appropriate to the installed covering, particularly before adding equipment or carrying out other building work. ### Can you explain repair and replacement options? Yes. Customers specifically praise Robbie for explaining the work and exploring alternatives. A local defect may justify a targeted repair, while widespread deterioration can make renewal more sensible. The recommendation should relate to the inspection findings, not just the age of the roof or a preference for one material. Next step ## Discuss your flat roofing with Robbie Call Landmark Roofing Solutions on 07832 878937 to explain the roof, the property location and any current leaks. Ask Robbie about availability and how a quote can be arranged. The phone is always answered 24/7, including for emergency roofing enquiries. 07832 878937 - 10-year warranty on flat roof installations - Fully insured · Family-run Roof emergency? ## We answer 24/7. Day or night. 07832 878937 Call Robbie NowRequest a Quote Family-run roofers led by Robbie Giles. Contact us to confirm availability at your property. Honest advice, professional workmanship and warranties up to 25 years. - ### Useful Links About - All Roofing Services - Roofing Service Areas - Our Work - Reviews - Contact - Privacy Policy - Cookie Policy - Terms & Conditions - Cookie settings ### Services - New Pitched Roofs - Complete Re-Roofs - Slate Roofing - Tiled Roofing - Flat Roofing - 3-Layer Felt Flat Roofing - EPDM Rubber Roofing - GRP Fibreglass Roofing ### Contact - Owner: Robbie Giles - 07832 878937 - landmarkroofingsloutions@gmail.com - 24/7 emergency cover: phone always answered © 2026 Landmark Roofing Solutions. All rights reserved. Call 24/7Get a Quote