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Armour ShieldRoofing Services
Roofing service

Flat Roofing in East Yorkshire

Flat roofing covers extensions, garages, dormers and porches with a continuous waterproof membrane. Modern systems — GRP fibreglass, EPDM rubber and high-performance felt — last far longer than the old pour-and-roll felt, with lifespans of 20–30+ years when correctly installed with the right falls and drainage.

A typical single garage flat roof commonly ranges £1,200–£3,000 depending on system (felt/EPDM/GRP), size and insulation. Free fixed quote.

What's included

  • New flat-roof installation on extensions, garages and dormers
  • Stripping and replacing failed or leaking flat roofs
  • Correcting falls and drainage so water cannot pond
  • Insulation upgrades to meet current Building Regulations
  • Trims, edges and outlets finished neatly

Signs you may need flat roofing

Spotting these early usually means a smaller, cheaper job. If any sound familiar, it's worth getting the roof looked at.

  • Pooling water that sits for days after rain
  • Cracks, blisters or splits in the membrane
  • Leaks into the rooms or garage below
  • A felt roof more than 10–15 years old

Materials & options

GRP fibreglass

A seamless, rigid, glass-reinforced plastic finish — hard-wearing and ideal for areas with foot traffic. Typically 25–30+ year lifespan.

EPDM rubber

A single-piece rubber membrane with very few joints — flexible, quick to install and resistant to UV and temperature swings. Often 25–30+ years.

Torch-on felt

Modern multi-layer felt — a cost-effective, reliable system when installed by experienced roofers. Typically 15–20 years.

How it works

A straightforward, no-pressure process from first call to finished job.

  1. AssessmentWe check the deck, falls and existing build-up to recommend the best system for the roof and your budget.
  2. Fixed quoteClear pricing comparing GRP, EPDM and felt so you can choose with full information.
  3. InstallationDeck repairs, insulation, membrane and trims fitted to manufacturer specification.
  4. GuaranteeWorkmanship guaranteed, with manufacturer-backed product warranties where applicable.

Flat Roofing — frequently asked questions

Which is best — GRP, EPDM or felt?

For a roof you will walk on or want the longest rigid finish, GRP fibreglass is excellent. For a large, simple roof installed quickly with minimal joints, EPDM rubber is hard to beat. Felt remains a reliable, lower-cost option. We recommend based on your specific roof, not a one-size-fits-all answer.

How long does a flat roof last?

Modern GRP and EPDM systems commonly last 25–30 years or more; quality torch-on felt typically 15–20 years. Correct falls and drainage are the biggest factors in longevity.

Why does my flat roof keep leaking?

Usually because water is ponding due to poor falls, or because an old felt covering has cracked or blistered. We correct the falls and fit a modern membrane rather than patching repeatedly.

Can you insulate the flat roof at the same time?

Yes — we can upgrade the insulation to meet current Building Regulations as part of a re-cover, improving warmth and reducing energy bills.

Related services

Roof Repairs

A roof repair fixes a localised fault — a leak, slipped or broken tiles, failed flashing, or storm damage — before water can reach your timbers, insulation and ceilings.

Learn more →

New Roofs & Re-Roofing

Re-roofing replaces your entire roof covering — tiles or slates, battens, underlay (felt), and usually the ridge and flashings — giving you a watertight, energy-efficient roof that should last decades.

Learn more →

Need flat roofing? Let's talk.

Free, no-obligation quote · 15-year guarantee · £5 million public liability