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Flat Roofing in Twickenham & Richmond

Modern felt, EPDM rubber and GRP fibreglass flat roofs for extensions, garages, dormers and balconies. Since each system suits a different job, we'll recommend the one that fits yours. Good detailing at the edges and outlets is what actually keeps a flat roof dry. We'll walk you through the trade-offs before you commit to anything.

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The right system for your roof

A flat roof is only as good as its detailing — the upstands, edges, laps and outlets where water finds its way in. Since that's where most failures start, we fit the covering properly and get those details right, whether it's a leaking garage roof or a brand-new extension. Get the detailing wrong, and even a brand-new roof can fail within a couple of years.

We work with all three modern systems and will recommend the one that best suits the size, shape and use of your roof, although we'll always explain why, rather than pushing a one-size-fits-all product.

Not every flat roof needs the same system. A small garage roof might call for cost-effective torch-on felt, while a busy roof terrace or balcony needs the tougher, seamless finish that GRP fibreglass gives. For example, EPDM rubber suits a large, simple roof best, since it goes down in one sheet with very few joints.

Many flat roofs on Twickenham and Richmond homes sit above kitchen extensions, garages and dormers, where poor insulation means heat loss and condensation. When we replace a flat roof, we can upgrade it to a warm-roof build-up at the same time. That way you get a roof that's watertight and better insulated in one job. We'll always explain the options plainly, so you know what you're paying for.

Flat roof systems we fit

Torch-on felt — reliable, cost-effective multi-layer roofing
EPDM rubber — seamless single-ply membrane, very long life
GRP fibreglass — hard, seamless finish for balconies & trafficked areas
Warm-roof insulation upgrades to cut heat loss & condensation
New flat roofs for extensions, garages and dormers
Flat-roof repairs, re-covers and outlet replacement

Why homeowners choose us for flat roofs

Watertight detailing

We get the edges, upstands and outlets right — the parts that actually cause leaks.

Long-life materials

Since a flat roof takes more punishment than a pitched one, we use quality felt, EPDM and GRP systems built to give 20+ years of service.

Honest advice

We recommend the system that fits your roof and budget, not the priciest option.

Flat Roofing FAQs

What is the best material for a flat roof — felt, EPDM or GRP? +

All three are excellent when fitted well. Modern torch-on felt is reliable and cost-effective; EPDM rubber is a single-piece membrane with a very long life, ideal for extensions and dormers; GRP fibreglass gives a hard, seamless finish that suits balconies and areas with foot traffic. We'll recommend the right one for your roof and budget.

What is the difference between EPDM rubber and GRP fibreglass? +

EPDM is a flexible rubber membrane laid in a single sheet with very few joints, so it copes well with movement. GRP (glass-reinforced plastic) is a rigid, laminated finish that's seamless and hard-wearing. EPDM tends to suit larger, simpler roofs; GRP suits detailed roofs, trims and trafficked surfaces.

How long does a flat roof last? +

A properly installed modern flat roof typically lasts 20–30 years or more, well beyond the old reputation of felt roofs. Good detailing at the edges, upstands and outlets matters more than the headline material — which is exactly where we take care.

Can you insulate my flat roof as well? +

Yes. When we replace a flat roof we can upgrade the insulation to a warm-roof build-up, improving the thermal performance and helping to prevent condensation. We'll talk you through the options before starting.

Flat roofing across the area:

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Planning a new flat roof?

Free no-obligation quote and honest advice on felt, EPDM and GRP. Since each roof is different, we'll recommend whichever system genuinely suits yours. We'll explain the options clearly, so you can choose with confidence. Whatever stage you're at, it costs nothing to ask.

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