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HR Harts Roofing
Service

Flat Roofing Northampton

Modern flat roofs are seamless and durable, with real guarantees. We install and repair EPDM rubber, GRP fibreglass and felt flat roofs. We work on extensions, garages, dormers and porches across Northamptonshire.

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What's Included

  • EPDM rubber flat roofs — seamless and long-lasting
  • GRP fibreglass flat roofs for a hard-wearing finish
  • Torch-on felt flat roofs and re-covers
  • Flat-roof repairs — splits, seams, upstands and outlets
  • Garage, extension, dormer and porch roofs
  • New falls, trims, drips and outlets to stop ponding
  • Insulation upgrades to warm-roof standards where needed

Which system is right for you?

EPDM rubber is our go-to for most garages and extensions — seamless, tough and long-lasting. GRP fibreglass suits balconies and roofs on show or in use, while high-performance felt remains a dependable, cost-effective option. We'll match the system to how your roof is used and what you want to spend.

How It Works

1

Free survey

We check the deck, falls and existing covering and recommend the best system. As a result, the material actually suits your roof, not just the budget.

2

Written quote

An written quote setting out the material, build-up and guarantee. As a result, you know exactly what's going on the roof.

3

Installation

We strip or overlay as needed and lay a properly detailed, watertight roof. Because the detailing is done properly, standing water shouldn't be a problem.

4

Guarantee

Final checks, a tidy finish and confirmation of any manufacturer guarantee. As a result, you're covered in writing, not just by a verbal promise.

Flat Roofing FAQs

What is the best material for a flat roof — felt, EPDM or GRP fibreglass? +
All three work well. EPDM rubber is a single seamless membrane that's very durable and quick to install; GRP fibreglass gives a hard-wearing, seamless finish that's ideal where the roof is walked on or seen; and modern torch-on felt is a reliable, budget-friendly multi-layer system. We'll recommend the right one for your roof's size, use and budget.
How long does an EPDM / rubber flat roof last? +
A properly installed EPDM rubber roof typically lasts 20–30 years or more, and many systems carry manufacturer guarantees. Because it's a single seamless sheet with very few joints, there's little to fail compared with older felt roofs.
What causes a flat roof to leak? +
Older felt roofs leak as the material ages, cracks and the seams split, and ponding water speeds up the wear. Leaks also start at poorly formed upstands, flashings and outlets. A modern EPDM or GRP system with proper falls and detailing removes most of these weak points.
Can you repair a flat roof or does it need replacing? +
If the roof is generally sound and the problem is localised — a split, a lifted seam or a failed flashing — a repair is often enough. If the covering is old, brittle or ponding badly across the whole roof, re-covering with EPDM, GRP or felt is usually the better long-term value. We'll give you an honest recommendation at survey.

New or Leaking Flat Roof?

Book a free survey and get a written quote for your flat roof. Still, you'll know the real cost before you decide.

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Flat roofs fail differently to pitched roofs. They shed water far more slowly, so they're less forgiving of poor detailing or standing water. Because of that, we check for ponding, cracked membrane and failed upstands at every survey, not just the general surface from a distance.

We fit all three common systems: felt, EPDM rubber and GRP fibreglass. We'll recommend whichever genuinely suits your roof's size, detailing and budget, not whichever is in the van. A simple extension roof and a large roof with rooflights often call for different materials, and we'll explain why.

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Written by Harts Roofing · Page last updated