Flat RoofingContractors

Flat roof systems

GRP fibreglass roofing in Craigavon

For a fibreglass flat roof in Craigavon, the price depends on size, access, the new deck and any insulation needed. You can get a guide figure from our online tool in a couple of minutes. After a free survey, we confirm a fixed price in writing and agree a start date that leaves room for the weather.

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

Craigavon at a glance

Postcode districts
BT62, BT63, BT64, BT65, BT66, BT67
Population
about 59,236 (GeoNames)
Council area
Armagh City, Banbridge and Craigavon Borough Council
Building approval
Armagh City, Banbridge and Craigavon Borough Council building control
Nearest main town
Lisburn, about 15 miles
Guide price region
Northern Ireland (−12% on West Midlands rates)

Why choose GRP fibreglass roofing in Craigavon?

For a garage or extension in Craigavon that doubles as a step-out space for window cleaning, GRP gives a firmer footing than a rubber membrane. With an anti-slip topcoat it handles light, occasional use, though a full terrace needs its own specification and, in many cases, planning permission.

Around Craigavon, flat roofs are common on lock-up garage blocks on estates and on 1930s semis with flat-roofed garages and kitchen extensions. Northern Ireland averages roughly 1,150 mm of rain a year, spread over many wet days, so a roof that sheds water quickly to clear outlets lasts far longer than one that holds puddles.

How much does a GRP fibreglass roof cost in Craigavon?

Guide price in Craigavon: £2,650–£4,750 for a 20 m² extension roof in GRP with a new deck and insulation, including VAT at Northern Ireland rates. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Extension (20 m²), GRP, new deck + insulation£2,650–£4,750
Dormer (8 m²), GRP, scaffold£1,250–£2,350
Single garage (18 m²), GRP fibreglass£1,550–£2,850
Single garage (18 m²), EPDM rubber£1,400–£2,450
Extension (20 m²), EPDM, new deck + insulation£2,450–£4,300

Will a new GRP roof need extra insulation to meet building regulations?

If the roof is over a heated room and you are replacing more than half of it, usually yes. In England, Wales and Northern Ireland that counts as renovating a thermal element, and in Scotland the council's building standards service will say whether a building warrant applies.

GRP pairs well with a warm roof because the new deck boards it needs can sit on top of the insulation. The result is thicker, so we check at survey that there is room under door cills and wall flashings, and that the upstands can finish around 150 mm above the new surface. Where approval is needed we arrange it with building control or building standards.

Unheated, detached garages normally sit outside the thermal rules. See the building regulations page for each nation, or the warm vs cold roof guide for why we avoid cold roofs where we can.

What's included?

  • Moulded GRP trims, kerbs and upstands
  • Coloured UV-stable topcoat, with anti-slip finish on request
  • Warm-roof insulation and vapour control layer where the room below is heated
  • Removal of the old covering and disposal of waste

Building control in Northern Ireland

In Northern Ireland, Technical Booklet F1 sets roof insulation at 0.18 W/m²K when a roof over a heated room is renovated or newly built, where that's feasible. The district council's building control should be contacted before work starts, and we prepare the details it asks for. More on the rules.

Which nearby areas do we also cover?

GRP fibreglass roofing in Craigavon: questions

Do you cover Craigavon?

Yes. Craigavon is part of our County Armagh coverage, including postcode districts BT62, BT63, BT64, BT65, BT66, BT67. 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 Craigavon?

Where the work needs approval it goes to Armagh City, Banbridge and Craigavon Borough Council building control. 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 Craigavon?

£2,650–£4,750 for a 20 m² extension roof in GRP with a new deck and insulation, at Northern Ireland guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

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.

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.

Other flat roof work in Craigavon

GRP fibreglass roofing in Craigavon: get a fixed price

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

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