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Roofing Service

Flat Roofing Leeds

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.

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Expert Flat Roofing Across Leeds

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.

Flat Roof Systems We Install

EPDM Rubber

Single-piece rubber membrane. 30–50 year lifespan. No seams on smaller roofs. Industry-leading reliability.

GRP Fibreglass

Seamless fibreglass system. 25-year warranty. Walk-on capable. Ideal for balconies and dormers.

High-Performance Felt

Modern torch-on or self-adhesive felt systems. 15–25 year lifespan. Cost-effective for larger areas.

Liquid Roofing

Cold-applied liquid systems for awkward shapes, parapets and roofs with multiple penetrations.

EPDM Flat Roofing — Our Most Popular System

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.

  • Single-piece installation up to 30m wide — zero seams on most domestic roofs
  • 50-year expected lifespan, 20-year manufacturer warranty
  • Resistant to UV, frost, hail and Yorkshire weather extremes
  • Flexible — moves with the building, doesn't crack or split
  • Recyclable at end of life
  • Walkable for maintenance access

GRP Fibreglass Flat Roofing

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.

Flat Roof Repairs Leeds

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:

  • Patching split or blistered felt
  • Sealing failed seams or edge trims
  • Replacing missing or damaged lead flashing at upstands
  • Fixing pooling water issues through fall correction
  • Resealing rooflights and skylights
  • Treating moss and algae growth that's holding water

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.

Flat Roof Costs in Leeds

Costs vary by size, system, and the condition of the existing structure underneath. Typical Leeds flat roof prices:

  • Garage roof (15–20m²), EPDM: £1,400 – £2,200
  • Extension roof (20–30m²), EPDM: £2,000 – £3,500
  • Extension roof, GRP fibreglass: £2,800 – £4,500
  • Dormer roof, EPDM or GRP: £1,200 – £2,400
  • Felt roof replacement (30m²): £1,400 – £2,200
  • Localised repair / patching: from £180

Prices include strip-off, disposal, new insulation if needed, and the new covering. Scaffolding and complex detailing add cost.

Our Flat Roof Installation Process

1. Free Survey

We come to your property, inspect the existing roof, check the substrate and structural deck, and assess drainage falls.

2. Written Specification

You get a written quote covering the system, brand, insulation, edge details and warranty term — no hidden extras.

3. Strip-Off & Substrate Check

Old covering removed, deck inspected, rotten OSB or ply replaced with new marine-grade material.

4. Insulation & Vapour Barrier

Where needed, we fit modern PIR insulation to current Part L building regs, plus a vapour barrier to stop interstitial condensation.

5. Membrane Installation

EPDM bonded with full contact adhesive. GRP laid with proper layup and three-coat finish. Felt fitted to BS 8217 standards.

6. Edge Detailing & Sign-Off

Proper aluminium edge trims, lead flashing to upstands, drips and weep holes correctly formed. Manufacturer warranty registered to your address.

Why Choose Kirkstall Roofing for Flat Roofing

  • 30+ years of flat roof installations across Leeds
  • Firestone & ClassicBond accredited EPDM installers
  • 20-year manufacturer warranties plus our 10-year workmanship guarantee
  • NFRC-approved, CompetentRoofer-certified, £5m insured
  • Free, no-obligation written quotes within 24 hours
  • Tidy site, clean finish — we treat your property like our own

Areas We Cover for Flat Roofing in Leeds

We install flat roofs across the whole of Leeds and West Yorkshire. Common areas include: Kirkstall, Headingley, Horsforth, Adel, Roundhay, Bramley, Pudsey, Burley, Hyde Park, Meanwood, Chapel Allerton, Yeadon, Otley, Guiseley and Leeds City Centre.

"EPDM on our extension after years of putting up with a leaking felt roof. Done in two days, watertight ever since. Should have done it years ago."
— Rachel B., Adel

Flat Roofing FAQs

  • EPDM rubber has an expected service life of 30–50 years. Manufacturer warranties on the membrane are typically 20 years. The rubber itself is highly UV-resistant and copes very well with Leeds weather — we have EPDM roofs we fitted 20 years ago that still look new.
  • EPDM is more flexible and forgiving on roofs with movement (most domestic extensions and garages). GRP is harder-wearing and walk-on capable — better for balconies and dormers you'll be on. We'll recommend the right system for your specific roof.
  • Yes — with non-penetrating ballasted mounting systems, solar can be fitted to most modern flat roofs without piercing the membrane. We can coordinate with solar installers or recommend partners we trust.
  • A typical garage or extension roof in EPDM takes 1–2 days. GRP takes 3–4 days because of cure times between coats. Larger flat roofs or anything with complex detailing can take a week. We'll give you exact timings with your quote.
  • If your existing roof has poor or no insulation, we'll usually recommend upgrading to current Part L building regs while the deck is exposed. It's far more economical to do it as part of the re-roof. Quote will include the insulation spec.
  • Yes — flat roof replacements over 25% of the area or any new flat roof on an extension are notifiable. As CompetentRoofer-certified installers, we self-certify your roof at no extra charge.
Related Services

Other roofing services we offer in Leeds.

Need a flat roof in Leeds? Get a free quote today.

EPDM, GRP or felt — we'll recommend the right system, quote in writing, and back the work for 20 years.

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