Flat RoofingContractors

Flat roof systems

GRP fibreglass roofing in Stretford

We lay GRP fibreglass roofs in Stretford on dormers, extensions, garages and small commercial buildings. A surveyor visits first, free of charge, to check the joists, measure up and see whether the roof suits fibreglass. You then get a fixed written price, and the work is done by vetted roofing teams working under S&K.

Finished grey GRP fibreglass flat roof with moulded trims on a single-storey extensionComputer-generated example image

Stretford at a glance

Postcode districts
M32
Population
about 41,953 (GeoNames)
Council area
Trafford Council
Building approval
Trafford Council building control, or a registered building control approver
Nearest main town
Salford, about 3 miles
Guide price region
North West (−5% on West Midlands rates)

Why choose GRP fibreglass roofing in Stretford?

If a flat roof in Stretford has already been patched with fibreglass that keeps cracking, a full GRP replacement on a new, properly fixed deck often solves the problem. Cracks usually come from movement in the boards beneath, so renewing the deck and reinforcing the joints deals with the cause.

Around Stretford, flat roofs are common on lock-up garage blocks on estates and on bungalows with flat-roofed side extensions and dormers. The North West is one of England's wetter regions, averaging roughly 1,290 mm of rain a year, so falls, outlets and well-detailed upstands matter more than the membrane colour.

How much does a GRP fibreglass roof cost in Stretford?

At North West guide rates, a 20 m² extension roof in GRP with a new deck and insulation comes to £2,850–£5,100 including VAT. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Extension (20 m²), GRP, new deck + insulation£2,850–£5,100
Dormer (8 m²), GRP, scaffold£1,350–£2,500
Single garage (18 m²), GRP fibreglass£1,700–£3,100
Single garage (18 m²), EPDM rubber£1,500–£2,650
Extension (20 m²), EPDM, new deck + insulation£2,650–£4,650

How long does a GRP roof last, and is it guaranteed?

A properly laid GRP roof typically lasts 20 to 40 years. The range is wide because so much depends on the laminate being fully wetted out, the deck staying dry and stable, and the topcoat being renewed if it wears.

When GRP fails early, the cause is usually one of these:

  • resin laid in damp or cold conditions that never fully cured;
  • cracks at board joints or trims where movement was not allowed for;
  • a deck that was wet, soft or poorly fixed before laminating;
  • a thin or patchy topcoat that has weathered through.

On guarantees, manufacturer material guarantees are available on many specified GRP systems, and some need a registered build-up or an approved installer. Where registration is possible, we do it for you. Every re-roof also comes with our written workmanship guarantee, with the length set out in your quote, and you can ask about insurance-backed options. Read more in our guarantees guide.

What's included?

  • New OSB3 or plywood deck, fixed at close centres
  • Resin and glass-mat laminate with taped and reinforced joints
  • Moulded GRP trims, kerbs and upstands
  • Warm-roof insulation and vapour control layer where the room below is heated

Building regulations in England

Replacing more than half of a flat roof over a heated room usually counts as renovating a thermal element, so the roof is insulated to around 0.16 W/m²K where that's technically and economically feasible, and the work is notified to building control: the council or a registered building control approver, unless a registered competent person self-certifies it. A roof on a new extension is built to 0.15 W/m²K. Patch repairs, and most unheated detached garages, don't trigger the upgrade. Structural changes, or a new covering that adds 15% or more to the roof's weight, also need approval. More on the rules.

Which nearby areas do we also cover?

GRP fibreglass roofing in Stretford: questions

Do you cover Stretford?

Yes. Stretford is part of our Greater Manchester coverage, including postcode districts M32. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.

Who checks building regulations for a flat roof in Stretford?

Where the work needs approval it goes to Trafford Council building control, or a registered building control approver. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.

How much does a GRP fibreglass roof cost in Stretford?

£2,850–£5,100 for a 20 m² extension roof in GRP with a new deck and insulation, at North West guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Does GRP smell when it is being laid?

Yes, the resin gives off a strong styrene smell while it cures. It usually fades within a day or so, and we advise keeping nearby windows closed while the team works.

What colours does a GRP roof come in?

Topcoats are typically available in greys, greens, black and some other shades. Lighter colours absorb less heat, and an anti-slip finish can be added where people will walk on the roof.

Other flat roof work in Stretford

GRP fibreglass roofing in Stretford: get a fixed price

Free survey and a written fixed quote for replacement and new roofs. No obligation.

Call usGet a guide price