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Range Roofing — Flat Roofing Hero
Flat Roofing

Durable flat roofing for extensions and outbuildings

GRP, EPDM and felt flat roofing systems designed for long-lasting protection and excellent weather resistance — usually completed in 1–3 days.

1–3 Day Turnaround
10-Year Guarantee
Fixed-Price Quotes

Get a free flat roofing quote

Tell us about your project — we'll call within 30 minutes.

No obligation — free survey within 48 hours.

Range Roofing — Flat Roofing Trust Bar

1–3 Day Turnaround

Most Jobs Done Fast

10-Year Guarantee

Every Roof Covered

GRP, EPDM & Felt

Multiple Material Options

5-Star Rated

Highly Recommended
Range Roofing — Flat Roofing Overview Section
Flat Roofing

Flat roofs fail early when they're installed badly. We don't cut corners.

Most flat roof problems trace back to poor installation, not the material itself. Ponding water, membrane splits and edge failures are almost always avoidable with the right prep and detailing.

We install GRP, EPDM rubber and felt systems correctly the first time, with proper falls built in so water drains away instead of pooling.

What's included:
  • Free survey & material advice
  • GRP, EPDM or felt options
  • Correct fall & drainage design
  • Insulation upgrade available
  • Full site clean-up
  • 10-year workmanship guarantee

Signs Your Flat Roof Needs Attention

Common warning signs on flat roofs specifically.

  • 1 Standing water after rain
  • 2 Bubbling or blistering membrane
  • 3 Cracks around edges or upstands
  • 4 Damp patches on ceiling below
  • 5 Roof is 15+ years old
Book a Free Survey
Range Roofing — Why Choose Us for Flat Roofing (Image + List)
Flat roofing installation on a London extension
1–3 Days, most flat roof jobs
Why Choose Us

For a flat roof that actually sheds water

  • 01

    Correct Falls, Every Time

    Proper drainage design built in, so water never pools on the finished roof.

  • 02

    Multiple Material Options

    GRP, EPDM and felt — we recommend what actually suits your roof, not just what's cheapest.

  • 03

    Fixed-Price, No Surprises

    A written quote before we start — the price you agree is the price you pay.

  • 04

    10-Year Guarantee

    Every flat roof we install is covered in writing.

  • 05

    Our Own In-House Crew

    Never subcontracted — the same team surveys, installs and signs off the job.

Range Roofing — Flat Roofing Before/After Gallery
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Customer Reviews

What people say about their flat roof

★★★★★ 4.9/5 from 380+ reviews
★★★★★

Flat roof on our extension was done in two days, spotless site clean-up, and the 10-year guarantee gave us real peace of mind. Would use them again without hesitation.

★★★★★

We got three quotes and Range Roofing's was the most detailed by far. The crew were tidy, punctual, and did exactly what was agreed.

★★★★★

Full re-roof on a Victorian terrace — daunting job, but they kept us updated daily with photos. Finished on time, on budget, and looks fantastic.

Range Roofing — Flat Roofing Process Section
How It Works

Your flat roof, start to finish

A clear, four-step process — most flat roofing jobs are complete within 1–3 days.

Step 01

Free Survey

We assess the roof and recommend the right material system for your specific situation.

Step 02

Fixed-Price Quote

A clear, itemised quote within 48 hours, with your recommended material system explained.

Step 03

Installation

Correct falls and detailing installed by our own crew, usually within 1–3 days.

Step 04

Final Inspection & Guarantee

A full check of the finished roof, plus your written 10-year guarantee.

Range Roofing — Flat Roofing FAQs Section
Flat Roofing FAQs

Common questions about flat roofing

Everything homeowners typically ask before booking a flat roofing job.

Still have a question?

Speak to a roofer directly — we're happy to give free advice, even if you're not ready to book.

Ask Us a Question →
It depends on your budget, roof size and usage. GRP (fibreglass) is durable and seamless, EPDM rubber is flexible and long-lasting, and felt is a cost-effective option for smaller areas. We'll recommend the right fit during your free survey.
This is almost always due to insufficient fall (slope) built into the original installation. We correct this during installation so water drains properly instead of sitting on the surface.
A properly installed GRP or EPDM roof typically lasts 20–30 years with basic maintenance, far longer than a poorly installed one.
Yes, this is a great time to upgrade insulation, and we can include this in your quote at the survey stage.
Yes, every flat roof installation comes with our standard 10-year workmanship guarantee, in writing.
Not when installed correctly. Most flat roof leaks come from poor original installation — incorrect falls, weak edge detailing, or low-grade materials — not from the flat design itself.
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Ready When You Are

Get a flat roof that actually sheds water.

Book your free survey today and get a fixed-price flat roofing quote within 48 hours.