Flat Roofs

Maybach Roofing & Property Maintenance Ltd are specialist flat roof contractors serving Windsor, Maidenhead, Slough, Ascot and the surrounding Thames Valley. We install and repair flat roofs using the two leading modern systems — EPDM rubber roofing and GRP fibreglass roofing — both of which offer dramatically longer lifespans and far better weatherproofing than traditional felt.

Felt flat roofs have been the standard for decades, particularly on garages, home extensions and dormer windows. However, felt has a limited lifespan of around 15 years before the seams begin to split and the material becomes brittle. This is caused by repeated expansion and contraction as temperatures rise and fall throughout the year. Once the seals fail, water finds its way through, often causing damage to the structure beneath before the leak becomes visible inside the property. If your felt roof is more than 10 years old, it is worth having it inspected before problems develop.

GRP fibreglass roofing is one of the most popular alternatives to felt and for good reason. A fibreglass flat roof is formed as a single seamless membrane, meaning there are no joints or seals to fail. The GRP system is laid in liquid form over the roof deck and cures to form a rigid, completely waterproof shell. It is incredibly strong, can be walked on without damage, and has a typical lifespan of 35 years or more. Fibreglass is also available in a range of finishes and colours, so it can be tailored to suit the look of your property.

EPDM rubber roofing is the other system we recommend, and it offers an even longer lifespan of 50 years or more. EPDM is a synthetic rubber membrane that is laid in a single sheet across the roof, eliminating joints wherever possible. It is extremely flexible, which means it copes well with the thermal movement that causes felt roofs to fail. EPDM is also highly resistant to UV light, ozone and weathering, making it an excellent long-term investment. It is particularly well suited to larger flat roof areas where a single seamless sheet can be laid.

Flat roofs are found throughout the Windsor and Maidenhead area on a wide variety of property types. Single-storey rear extensions, garages, dormer windows, bay window roofs and garden rooms all commonly feature flat roofs. Many of these were originally covered with felt and are now reaching the end of their useful life. We regularly replace these ageing felt roofs with modern GRP or EPDM systems, transforming a source of ongoing maintenance into a fit-and-forget solution that will last for decades.

The Thames Valley climate puts flat roofs under particular stress. Heavy rainfall is common throughout the year, and standing water is one of the biggest threats to any flat roof. Our installations are designed with proper falls to ensure rainwater drains away efficiently, preventing ponding that can accelerate deterioration. Winter frosts and summer heat cycles also test flat roof materials to their limits — another reason why modern GRP and EPDM systems, which are engineered to handle these extremes, are so much more reliable than felt.

Both GRP and EPDM flat roofs also offer improved thermal performance compared to older systems. When combined with modern insulation boards installed beneath the membrane, a new flat roof can significantly reduce heat loss from your property, helping to lower energy bills and improve comfort. We can advise on the most effective insulation options for your particular roof and ensure the installation meets current building regulations.

Our flat roof installation process begins with a free survey and quotation. We assess the condition of the existing roof deck, check for any structural issues, and recommend the most suitable system for your property and budget. During installation, we remove the old covering, repair or replace the timber deck if necessary, lay the new insulation and membrane, and finish with trims and edge details for a neat, professional result. Most flat roof installations are completed within one to three days.

All of our flat roof work is backed by a 10-year workmanship guarantee, and the materials we use carry their own manufacturer guarantees — typically 25 years for GRP systems and 20 years or more for EPDM. If you have a flat roof that is leaking, ageing or simply due for replacement, call us on 01753 336779 for a free, no-obligation quote. We will talk you through the options and help you choose the right solution for your property.