15-Year IBG

01708 123 456

Roofing Service

Flat Roofing — EPDM & GRP Fibreglass

Long-life, seamless flat roofing in EPDM rubber and GRP fibreglass — the modern replacement for failed felt.

A modern flat roof extension with roof lights and a clean membrane finish

Overview

Old mineral-felt flat roofs blister, split and leak — usually within ten years. We replace them with seamless systems engineered to outlast the building: EPDM rubber membranes and wet-laid GRP fibreglass, both with no joints to fail across the main field of the roof.

Whether it is a single garage, a kitchen extension or a full warm-deck flat roof with upgraded insulation to current Building Regulations, we build the deck correctly, set the falls to drain properly, and finish with crisp trims and outlets that look as good as they perform.

Genuinely Seamless

No felt laps to lift. EPDM and GRP form one continuous waterproof skin.

Part L Compliant

Warm-deck insulation upgrades meet current Building Regulations on every replacement.

20-Year Material Cover

Backed by manufacturer guarantees on top of our own workmanship cover.

What's included

  • Strip and dispose of failed felt or asphalt
  • New OSB3 or ply deck with correct firring falls
  • Warm-deck insulation upgrade to current Part L
  • Seamless EPDM rubber membrane or GRP fibreglass laminate
  • GRP or aluminium edge trims, drips and kerbs
  • New rainwater outlets and connection to existing goods
  • Bonded upstands and flashings to all abutments
  • Walk-on and roof-light ready finishes available

Systems & materials we use

Firestone RubberCover EPDM

One-piece rubber membrane, cold-applied, with a 20-year material guarantee and 50-year design life.

GRP Fibreglass

Wet-laid glass-reinforced polyester, cured to a seamless hard-wearing shell — ideal for balconies and walk-on decks.

Warm-Deck Build-Up

High-performance PIR insulation laid over the deck so the structure stays warm and condensation-free.

Carried Out By An Accredited Team

Independently checked and approved — so you know the roof over your head is in qualified, insured hands.

  • NFRC Member No. RR-19842
  • CompetentRoofer Government-Authorised Scheme
  • TrustMark Government Endorsed Quality
  • Which? Trusted Trader Endorsed Trader
  • Checkatrade 9.8 / 10 Average

Good To Know

Flat Roofing — EPDM & GRP Fibreglass — your questions

EPDM or fibreglass — which is better?
EPDM rubber is fast, flexible and superb for larger areas and awkward shapes. GRP fibreglass is harder-wearing and the better choice for walk-on decks and balconies. We advise the right one on survey.
How long does a flat roof last?
A correctly installed EPDM or GRP roof has a design life of 30–50 years, compared with around 10–15 for traditional felt.
Can you fit a roof light or lantern?
Yes. We build the kerb, weather it in and seal around any roof light, lantern or access hatch as part of the works.

Free · No Obligation · Fully Insured

Need flat roofing (epdm / grp)?

Book your free, no-obligation roof survey today. We'll inspect, advise honestly and give you a clear written quote — with no pressure.

Book Free Survey Call 01708 123 456
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