Flat roofing specialists
Roofing built to protect what matters most.
GW Roofing is your local flat roof specialist across Surrey and London. From extensions and garages to full re-roofs, we do the detailing properly — and back every flat roof with a minimum 15-year warranty.
- Flat roof specialistOur primary trade
- 15-year minimum warrantyOn all flat roofs
- 5.0 rating on MyBuilder63 reviews
- Surrey & London coverageLocal, not national
What we do
Roofing services across Surrey & London
One team for the whole roof — from a single slipped tile to a complete flat roof replacement.
Our specialismFlat Roofing
Our specialism. Warm-deck flat roofs built to last, with a minimum 15-year warranty.
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New Roofs
Full re-roofs on tiled and slated properties, done once and done properly.
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Roof Repairs
Leaks, slipped tiles, failed flashings and storm damage traced and fixed.
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All Lead Work
Hand-dressed lead flashings, valleys, soakers and chimney work.
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Velux Windows
Roof window installation and replacement, weathered in correctly.
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Fascias & Guttering
uPVC fascias, soffits and guttering that finally clear the water away.
Find out more15 years
Minimum warranty
Our specialism
Flat roofs done properly, guaranteed for 15 years
A flat roof only fails where the detailing is rushed. We strip back to a sound deck, set the falls correctly, insulate to spec and finish with a seamless membrane that's dressed into every upstand, outlet and trim. That's why we can put a minimum 15-year warranty on every flat roof we install.
- Extensions, garages, dormers, outbuildings and commercial flat roofs
- Seamless GRP and EPDM systems, correctly detailed
- Minimum 15-year warranty on all flat roofs
- Clean site, tidy finish, no surprises
Rated 5.0 on MyBuilder
5.0 rating from 63 MyBuilder reviews
Every review on our MyBuilder profile comes from a verified customer who hired us for real work across Surrey and London.
Read all reviews on MyBuilder“Quoted quickly and got straight on with it. The flat roof and new fascias look excellent and the finish is spot on.”
Flat roof and fascias · MyBuilder customer
“Sorted the gutter problem efficiently with no fuss, and left everything clean and tidy afterwards.”
Gutter repair · MyBuilder customer
“Professional job replacing the Velux window. Turned up when they said, worked neatly and it is watertight.”
Velux window replacement · MyBuilder customer
Recent work
Roofs we've finished lately
How it works
Three steps, no runaround
- 1
Get in touch
Call or send a few details about the roof. We will ask the right questions and arrange a look.
- 2
Receive your free quote
A clear, written quote for the work that actually needs doing — no pressure and no padding.
- 3
Enjoy work built to last
We turn up when we say, work tidily, and leave you with a roof that is properly finished.
Where we work
Covering Surrey & London
We're local roofers, so we're rarely far away. We regularly work in Addlestone, Woking, Weybridge, Esher, Walton-on-Thames and the surrounding areas — these are just examples — we cover surrey and london widely, so please ask about your area.
See areas covered- Addlestone
- Woking
- Weybridge
- Esher
- Walton-on-Thames
- Chertsey
- Byfleet
- Cobham
- Kingston
- Richmond
- Wandsworth
- Croydon
Free quote
Tell us about your roof
Send a few details and we'll come back to you as soon as possible with a clear, free quote.
Get a free quote on your roof
Tell us what's happening up there and we'll give you a clear, honest price. No pressure, no pushy sales.