Flat RoofingContractors

Wales

Flat roofing contractors in Vale of Glamorgan

Across Vale of Glamorgan, our vetted teams working under S&K replace failed roofs with new GRP laminates on fresh timber decks. The guide prices on this page are adjusted for the region, and your own fixed price follows a survey. Where the roof is over a heated room, we include warm-roof insulation and deal with any approval needed. We replace flat roofs in full for homeowners, landlords and managing agents across Vale of Glamorgan. We price each roof on its own merits: size, system, deck condition, insulation, access and waste. Any hidden defect found after strip-out, such as rotten joists, is shown to you and priced before the team carries on.

Single-storey kitchen extension with a flat roof, roof lantern and open bi-fold doorsComputer-generated example image

Vale of Glamorgan at a glance

Largest towns
Barry, Penarth, Llantwit Major, Dinas Powys
Postcode areas
CF
Building control
Vale of Glamorgan Council
Neighbouring areas
Cardiff · Caerphilly · Bridgend · Rhondda Cynon Taf
Guide price region
Wales (−8% on West Midlands rates)

Which towns in Vale of Glamorgan do we cover?

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

What does a flat roof cost in Vale of Glamorgan?

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

JobGuide price inc VAT
Localised patch repair£140–£460
Emergency temporary weatherproofing visit£170–£410
Extension (20 m²), EPDM, insulation + 1 rooflight upstand£2,750–£4,800
Dormer (8 m²), GRP, scaffold£1,300–£2,450
Single garage (18 m²), liquid-applied£1,900–£3,000
Upstand or flashing repair£230–£600

Which flat roofs are common in Vale of Glamorgan?

The climate is part of the brief. 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 Vale of Glamorgan, flat roofs are typically found on low-rise post-war blocks of flats, shops with flat-roofed rear stores below flats and lock-up garage blocks on estates. Approximate 1991–2020 regional averages based on Met Office data.

Which flat roof jobs do we take on in Vale of Glamorgan?

Garage roofs

Water from a failing garage roof in Vale of Glamorgan does not always stay in the garage. On an attached garage it can run down the house wall or track under the flashing, and a blocked or broken gutter can spill onto the drive or a neighbour's property. Replacing the roof deals with the source.

Balconies and roof terraces

A roof terrace in Vale of Glamorgan may be re-waterproofed when the owners want to change the finish, swapping old tiles for decking or porcelain on pedestals. Lifting the surface exposes the membrane, and replacing it then avoids having to lift the new finish again later.

EPDM rubber roofing

Rubber is a sensible pick in Vale of Glamorgan where a roof sits close to bedrooms or a kitchen and you would rather avoid hot works. It suits porches, bays and dormers too, where the small area means a single sheet can cover the whole roof with no joins at all.

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 Vale of Glamorgan?

Flat roofing in Vale of Glamorgan: questions

How soon can you survey a roof in Vale of Glamorgan?

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.

Which council handles building control for a flat roof in Vale of Glamorgan?

It depends on where the roof is: in Vale of Glamorgan that's Vale of Glamorgan Council. 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 confirm which applies at the survey.

Do you work on commercial roofs in Vale of Glamorgan?

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

Which postcode areas do you cover in Vale of Glamorgan?

All of Vale of Glamorgan, including the CF postcode areas. Send your full postcode and we'll confirm.

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