Extensions, dormers, garages, porches and bay windows. 40 years of getting domestic flat roofs right. Drone survey, fixed-price quote, 25-year warranty — what's quoted is what you pay.
Extensions, dormers, garages, porches — the finicky stuff that needs a flat-roof specialist, not a general roofer who does the odd one.
Single-storey kitchen and side-return extensions. Warm-deck build-ups, proper insulation, sharp parapet detailing. The roof that won't leak in three winters.
Loft conversion dormers, side dormers, full-width dormers. Tight junctions to the main roof, lead flashings dressed right, bituminous or single ply finishes (GRP on request).
Strip the old felt, replace rotten deck boards, lay fresh bituminous, single ply or liquid system — GRP available on request. Done in 2–3 days on most domestic garages, manufacturer-backed warranty on the membrane.
The little jobs other roofers don't want. Porch canopies, bay window tops, oriel windows. Done properly in a day, no scaffolding charges on most.
Diagnose the actual source (not the puddle on the ceiling). Patch overlays, seam work, full localised re-membrane. Fix it once, properly, so you're not paying twice.
Old failing felt roof? Strip it back, fix the deck, lay fresh bituminous, single ply (EPDM) or a PU/PMMA liquid system — GRP available on request. Goes from a 10-year roof to a 20–50 year roof. Most domestic upgrades inside 3 working days.
Velux roof windows, glass lanterns, roof lights on extensions. Properly upstood, properly flashed, watertight at the membrane joint — the bit cowboys miss.
PIR insulation overlays to meet Building Regs Part L. Warm-deck conversions to stop cold-bridge condensation. Lower bills, quieter rooms, no rotting deck.
Stripped felt after a gale? Lifted flashings? Pooling water? Fast-response site visits, watertight emergency repairs, full insurance-claim documentation if needed.
Also: parapet detailing · lead outlets & chutes · flat-to-pitched conversions · firings & falls · cover flashings · roof lights
No call centres, no subcontractors, no "sales engineer". I'm the surveyor, the installer and the warranty contact. 40 years on domestic flat roofs across Dorset — Dorchester, Weymouth, Poole, Bournemouth and anywhere below the M4.
Every domestic flat-roof failure mode, every trick of the trade. I've seen it, fixed it, and now I won't make the same mistake on your roof.
Bituminous schemes 10–30 years. Single ply (EPDM/TPO/PVC) up to 50 years. GRP a 20-year material guarantee where the application calls for it. In writing, on every invoice — real manufacturer warranties.
I fly the drone before I quote. You see every failing seam, blister and pond from above — no guessing, no ladder, no "while we're up there" upsell.
Free survey, fixed price in writing, no surprise extras. What's quoted is what you pay — no VAT surprises, no "we found more rotten boards" follow-up bills.
Call, text, or drop the form below. I'll get back to you the same working day.
I fly the drone over your roof. You see every problem from above. Surveys booked within 24–48 hours.
Quote in writing, dates agreed. No deposit on standard domestic jobs under £2k.
Before-and-after photos, warranty docs, clean site. Pay by bank transfer, card, or cash.
Verified Google reviews from homeowners and businesses across Dorset, Hampshire and Somerset.
I very rarely give 5 star reviews but on this occasion the JW Flat Roofing team excelled in every aspect. From the time we got in touch explaining about our leaking flat roof they arrived quickly to do an assessment and then guaranteed we would be dry before Christmas. True to their word they worked in appalling conditions to complete the fit of a completely new roof and all before the Christmas break. The workmanship was superb, they were very pleasant to have around and a special thanks to Clive for his dedicated efforts to complete the job. I cannot recommend them highly enough and we are delighted with the finished product.
We recently had our flat roof at the front of our house replaced as it leaked. The guys from JW did a fantastic job, were very polite and worked very quickly and did a proper professional job to the highest standard. They left the job clean…
Friendly, reliable and professional company.
Just had flat roof replaced at a good price. Work was explained and carried out very well. Great workmanship and would definitely use again.
Superb workmanship, great value and reliable communication. Top work all round.
I recently hired JW Flat Roofing Solutions to handle several repairs on my home in Yeovil, and I couldn't be happier with the results. They replaced several roof tiles, fixed multiple leaks, and carried out essential repairs on my chimney…
I recently used this flat roofing company and couldn't be happier with the…
Commercial flat roofing lives on its own page — same hands, scaled up, manufacturer-approved.
Free quotes within 24 hours. Drone survey with every quote — I'll come out, fly the roof, and have a proper written price back to you quickly.
I'll ring you back today to arrange your drone survey. If it's urgent, the fastest thing is the phone: 07584 469397.
Probably a patchy connection. No worries — the fastest way to reach me is the phone.
Call 07584 469397