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Flat roof systems

GRP fibreglass roofing in Rhosllannerchrugog

Our GRP service in Rhosllannerchrugog covers full replacement of tired felt and failed fibreglass roofs, as well as new roofs on extensions. Every job includes deck checks, careful joint reinforcement and a UV-stable topcoat, with a written workmanship guarantee on every re-roof and manufacturer guarantees registered where the system allows.

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

Rhosllannerchrugog at a glance

Postcode districts
LL14
Population
about 25,362 (GeoNames)
Council area
Wrexham County Borough Council
Building approval
Wrexham County Borough Council building control, or a registered building control approver
Nearest main town
Wrexham, about 4 miles
Guide price region
Wales (−8% on West Midlands rates)

Why choose GRP fibreglass roofing in Rhosllannerchrugog?

For a garage or extension in Rhosllannerchrugog 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.

Rhosllannerchrugog's flat roofs are mostly on terraced streets with flat-roofed rear kitchens and bathrooms, with plenty on shops with flat-roofed rear stores below flats too. Wales averages roughly 1,460 mm of rain a year, among the wettest in Britain, so we design for steady run-off: proper falls, clear outlets and upstands well above the finished roof.

How much does a GRP fibreglass roof cost in Rhosllannerchrugog?

Guide price in Rhosllannerchrugog: £2,750–£4,950 for a 20 m² extension roof in GRP with a new deck and insulation, including VAT at Wales 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£2,750–£4,950
Dormer (8 m²), GRP, scaffold£1,300–£2,450
Single garage (18 m²), GRP fibreglass£1,650–£3,000
Single garage (18 m²), EPDM rubber£1,450–£2,600
Extension (20 m²), EPDM, new deck + insulation£2,600–£4,500

Is GRP better than EPDM, felt or a liquid roof?

GRP is the better choice when you want a rigid, walkable finish, a neat look on a visible roof, or crisp moulded details on a complicated shape. It is not automatically better on a plain garage that nobody steps on.

Strengths: hard surface that takes occasional foot traffic; jointless finish with no laps; trims, kerbs and upstands moulded as part of the roof; choice of topcoat colours; small repairs can be laminated in.

Weaknesses: sensitive to weather while laying; rigid, so it can crack where the structure moves; usually needs a new deck; styrene smell during application; skill-dependent, so workmanship matters more than with sheet systems.

For a simple roof, EPDM rubber is often quicker to lay and more forgiving of movement. Torch-on felt is usually cheaper per square metre. A liquid-applied roof can go over a sound existing surface, larger commercial roofs tend to suit single-ply, and older buildings may already have mastic asphalt worth keeping. The EPDM vs GRP vs felt guide compares the three most common choices.

What's included?

  • Removal of the old covering and disposal of waste
  • 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

Building regulations in Wales

The Welsh Approved Document L applies. Renovating more than half of a roof over a heated room means upgrading it to around 0.16 W/m²K where feasible, and new extension roofs are built to 0.13 W/m²K. Welsh Government guidance is that most re-roofing needs building control approval, so check whenever more than a quarter of a roof is replaced or repaired. We deal with the application as part of the job. More on the rules.

Which nearby areas do we also cover?

GRP fibreglass roofing in Rhosllannerchrugog: questions

Do you cover Rhosllannerchrugog?

Yes. Rhosllannerchrugog is part of our Wrexham coverage, including postcode districts LL14. 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 Rhosllannerchrugog?

Where the work needs approval it goes to Wrexham County Borough 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 Rhosllannerchrugog?

£2,750–£4,950 for a 20 m² extension roof in GRP with a new deck and insulation, at Wales guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Can you walk on a GRP roof?

Yes, a correctly laid GRP roof takes occasional foot traffic, such as cleaning windows or maintaining plant. For a regular walkway or terrace, an anti-slip topcoat and a suitable specification are needed.

Is GRP suitable for a dormer roof?

Yes, GRP is commonly used on dormers because the trims can be moulded neatly and the finish looks tidy from the ground. Scaffold is normally needed, which we include in the quote.

Other flat roof work in Rhosllannerchrugog

GRP fibreglass roofing in Rhosllannerchrugog: get a fixed price

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

Call usGet a guide price