Flat RoofingContractors

Wales

Flat roofing contractors in Wrexham

We install GRP fibreglass flat roofs across Wrexham, on homes, rental property and small commercial buildings. Each job starts with a free survey of the joists and deck, and laminating is planned around the weather, because resin needs dry conditions and suitable temperatures to cure properly. You get a fixed written quote first, with no obligation. We replace porch, bay and canopy roofs throughout Wrexham, re-covering them in EPDM, GRP or liquid-applied finishes. Each job includes a deck check, a proper wall flashing and drip trims that keep water off the frames. Guide prices for a typical porch roof are on this page, and the fixed price follows a free survey.

Flat roof stripped back to joists with firrings and new OSB3 deck boards being laid on a terrace offshootComputer-generated example image

Wrexham at a glance

Largest towns
Wrexham, Rhosllannerchrugog, Brymbo
Postcode areas
LL
Building control
Wrexham County Borough Council
Neighbouring areas
Flintshire · Denbighshire · Conwy · Gwynedd
Guide price region
Wales (−8% on West Midlands rates)

Which towns in Wrexham do we cover?

3 towns and cities have their own page; we cover everywhere in between too.

What does a flat roof cost in Wrexham?

Guide prices at Wales rates, including VAT. The fixed price comes after a survey.

JobGuide price inc VAT
Single garage (18 m²), GRP fibreglass£1,650–£3,000
Extension (20 m²), felt, new deck + insulation£2,500–£4,300
Emergency temporary weatherproofing visit£170–£410
Porch or bay (4 m²), EPDM£700–£1,150
Balcony (12 m²), liquid-applied, scaffold£1,750–£3,000
Extension (20 m²), GRP, new deck + insulation£2,750–£4,950

Which flat roofs are common in Wrexham?

Local weather shapes the specification. 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. Across Wrexham, flat roofs are typically found on shops with flat-roofed rear stores below flats, 1960s and 1970s link-detached houses with flat-roofed garages and porches and newer estates where the first extension roofs are now being replaced. Approximate 1991–2020 regional averages based on Met Office data.

Which flat roof jobs do we take on in Wrexham?

Extension and kitchen roofs

Extension roofs in Wrexham are often replaced because the original was built cheaply: thin chipboard decks, little or no insulation and felt turned up the wall without a proper flashing. Twenty or thirty years on, those weaknesses show up as leaks at the back wall and a cold, damp ceiling.

Balconies and roof terraces

Balconies in Wrexham are often re-waterproofed when the ceiling below starts to stain. On many older balconies, the membrane was laid under tiles or screed with no way to inspect it, so by the time the leak appears, water may have been tracking under the surface for a long time.

Single-ply membrane roofing

If a flat roof in Wrexham has poor falls and ponding, a single-ply re-roof with tapered insulation can correct both problems at once. The tapered boards build the fall into the insulation, and the membrane is laid over the top, with outlets set at the new low points.

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 services do we offer in Wrexham?

Flat roofing in Wrexham: questions

Which postcode areas do you cover in Wrexham?

All of Wrexham, including the LL postcode areas. Send your full postcode and we'll confirm.

Do you work on commercial roofs in Wrexham?

Yes: shops, offices, units and blocks of flats across Wrexham, with work planned around opening hours and residents.

Who approves flat roof work in Wrexham?

Welsh guidance is that most re-roofing needs building control approval, so it's worth checking whenever more than a quarter of a roof is replaced or repaired. We check this at the survey and handle the application as part of the job.

How soon can you survey a roof in Wrexham?

It depends on the time of year and where the roof is; we give you a date when you get in touch, and leaks are prioritised.

Get a fixed price for your flat roof

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

Call usGet a guide price