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Premium flat roofing across Leeds — EPDM rubber, GRP fibreglass and felt systems for extensions, garages, dormers and commercial properties. 20-year manufacturer warranties, guaranteed watertight, and full installations completed within days, not weeks.
Typical starting prices. Typical starting prices: felt flat roof repairs from £150, a full felt re-roof on a single garage from £1,000, EPDM rubber on a single garage from £1,300, and EPDM or GRP on a rear extension of about 15–20 m² from £1,600 and £1,800. The final price depends on access, size and the condition of the deck and is fixed in writing after a free survey; scaffolding, where needed, is priced separately from £400. See our flat roof costs guide.
Flat roofs get a bad reputation — but only because they're so often installed badly. Done properly, a modern flat roof should last 20 to 50 years and stay completely watertight throughout. At Kirkstall Roofing, we install and repair flat roofs across Leeds using only the three systems that genuinely last: EPDM rubber, GRP fibreglass and high-performance felt.
Whether you've got a leaking extension roof in Headingley, a garage in Bramley that needs re-covering, or a flat roof dormer in Horsforth that's seen better days, we'll come out, assess properly, recommend the right system for your property, and quote in writing.
Single-piece rubber membrane. 30–50 year lifespan. No seams on smaller roofs. Industry-leading reliability.
Seamless fibreglass system. 25-year warranty. Walk-on capable. Ideal for balconies and dormers.
Modern torch-on or self-adhesive felt systems. 15–25 year lifespan. Cost-effective for larger areas.
Cold-applied liquid systems for awkward shapes, parapets and roofs with multiple penetrations.
EPDM (ethylene propylene diene monomer) is a synthetic rubber membrane installed as a single piece on most domestic flat roofs. On a typical extension, dormer or garage in Leeds, EPDM is fitted with no seams at all — eliminating the most common point of failure on traditional felt roofs. We use Firestone RubberCover and ClassicBond systems, both with 20- to 50-year manufacturer warranties.
GRP (glass-reinforced polyester) is a liquid-applied fibreglass system that cures into a single seamless surface across the entire roof. It's ideal for balconies, walk-on roofs, dormers and any flat roof where appearance matters. We install with full BS 6229 compliance — proper falls, edge trims, and a high-build topcoat for UV protection.
Not every flat roof needs replacing. Where there's localised damage on a sound underlying roof, we can often repair rather than re-install. Common repairs include:
If your flat roof has reached the end of its life — felt that's blistered, brittle, cracked or curling at the edges — replacement makes more sense than repeat repairs. We'll always tell you honestly which option suits your roof.
Most of the flat roof installations we carry out across Leeds are replacements — old felt on garages, kitchen extensions and dormers that has blistered, ponded or simply run out of life. Our fitters strip back to the deck, replace any soft boarding honestly (covering over a rotten deck is the classic shortcut that fails within a couple of years), then install the membrane that suits the roof: EPDM rubber for most domestic jobs, GRP fibreglass where the roof gets foot traffic or needs crisp edges. A typical garage or extension is done in one to two days, and installations carry the manufacturer's membrane warranty alongside our own workmanship guarantee.
Not every tired flat roof needs replacing. Localised felt repairs — a split seam, a blister, flashing that's parted from the wall — can buy a sound roof several more years, and we'll tell you honestly which side of the line yours falls. The same goes for rubber roofing: EPDM is repairable with proper bonded patches when it's been punctured, and unlike felt it doesn't degrade around the repair. If water is already coming through, treat it as urgent — flat roof leaks spread along the deck and show up indoors a long way from the actual hole.
We come to your property, inspect the existing roof, check the substrate and structural deck, and assess drainage falls.
You get a written quote covering the system, brand, insulation, edge details and warranty term — no hidden extras.
Old covering removed, deck inspected, rotten OSB or ply replaced with new marine-grade material.
Where needed, we fit modern PIR insulation to current Part L building regs, plus a vapour barrier to stop interstitial condensation.
EPDM bonded with full contact adhesive. GRP laid with proper layup and three-coat finish. Felt fitted to BS 8217 standards.
Proper aluminium edge trims, lead flashing to upstands, drips and weep holes correctly formed. Manufacturer warranty registered to your address.
We cover flat roofing across Leeds. Local pages for the areas we’re asked about most: Bramley, Horsforth, Leeds Centre, Pudsey, Guiseley, Yeadon, Hyde Park, Meanwood, Roundhay, Adel, Tingley, Kirkstall. See every area on our coverage map.
Repointing, rebuilds, pots, cowls, trays and lead flashing. Removals down below the roof line as well.
Learn More →Rotten boards out, UPVC or timber in, and roof ventilation left clear instead of sealed up.
Learn More →New runs, repairs, realignment and clearing, so the water goes down the pipe and not down the wall.
Learn More →Storm damage and sudden leaks made safe with temporary covers, then put right properly afterwards.
Learn More →Industrial units, shops and managed property portfolios. RAMS supplied, work scheduled round the operation.
Learn More →Slipped and cracked tiles, failed flashing and leaks traced back to where they start rather than where they show.
Learn More →Strip, re-batten, breathable membrane and a covering chosen to suit the house. Scaffolded properly, left clean.
Learn More →Welsh slate, Yorkshire stone, clay and concrete tile — matched to what is already up there and coursed to suit.
Learn More →EPDM, GRP or felt — we'll recommend the right system, quote in writing, and back the work with our 10-year workmanship guarantee.