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Flat roof systems

GRP fibreglass roofing in Margate

Our GRP service in Margate 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

Margate at a glance

Postcode districts
CT8, CT9, CT11
Population
about 63,322 (GeoNames)
Council area
Thanet District Council
Building approval
Thanet District Council building control, or a registered building control approver
Guide price region
South East (+10% on West Midlands rates)

Why choose GRP fibreglass roofing in Margate?

If a flat roof in Margate 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.

In a large town like Margate, flat roofs are commonly found on low-rise post-war blocks of flats or terraced streets with flat-roofed rear kitchens and bathrooms. Much of the South East sits in the drier Thames catchment at roughly 730 mm of rain a year, so the usual failures are at joints, upstands and outlets rather than from sheer volume of rain.

How much does a GRP fibreglass roof cost in Margate?

At South East guide rates, a 20 m² extension roof in GRP with a new deck and insulation comes to £3,300–£5,900 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£3,300–£5,900
Dormer (8 m²), GRP, scaffold£1,550–£2,900
Single garage (18 m²), GRP fibreglass£1,950–£3,600
Single garage (18 m²), EPDM rubber£1,750–£3,100
Extension (20 m²), EPDM, new deck + insulation£3,100–£5,350

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
  • Resin and glass-mat laminate with taped and reinforced joints
  • New OSB3 or plywood deck, fixed at close centres
  • 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 Margate: questions

Do you cover Margate?

Yes. Margate is part of our Kent coverage, including postcode districts CT8, CT9, CT11. 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 Margate?

Where the work needs approval it goes to Thanet District 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 Margate?

£3,300–£5,900 for a 20 m² extension roof in GRP with a new deck and insulation, at South East guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

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.

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 Margate

GRP fibreglass roofing in Margate: get a fixed price

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

Call usGet a guide price