Flat Roofing Contractors in Merthyr Tydfil

Merthyr Tydfil at a glance

Largest towns: Merthyr Tydfil, Treharris
Postcode areas: CF
Building control: Merthyr Tydfil County Borough Council
Neighbouring areas: Rhondda Cynon Taf · Blaenau Gwent · Caerphilly · Torfaen
Guide price region: Wales (−8% on West Midlands rates)

Which towns in Merthyr Tydfil do we cover?

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

What does a flat roof cost in Merthyr Tydfil?

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

Job	Guide price inc VAT
Single garage (18 m²), liquid-applied	£1,900–£3,000
Single garage (18 m²), EPDM rubber	£1,450–£2,600
Extension (20 m²), felt, new deck + insulation	£2,500–£4,300
Single garage (18 m²), torch-on felt	£1,400–£2,400
Extension (20 m²), EPDM, new deck + insulation	£2,600–£4,500
Commercial roof (100 m²), single-ply + insulation	£12,150–£20,050

Which flat roofs are common in Merthyr Tydfil?

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 Merthyr Tydfil, flat roofs are typically found on newer estates where the first extension roofs are now being replaced, lock-up garage blocks on estates and low-rise post-war blocks of flats. Approximate 1991–2020 regional averages based on Met Office data.

Which flat roof jobs do we take on in Merthyr Tydfil?

Warm roof insulation upgrades

Kitchen extensions in Merthyr Tydfil, as elsewhere, produce a lot of moisture from cooking. Under a cold flat roof, that moisture can condense on the deck. A warm roof keeps the deck warm and puts a vapour control layer in the way, which lowers the risk considerably.

Commercial flat roofing

We are flat roof specialists, so a commercial roof in Merthyr Tydfil gets a system chosen for the job: single-ply for large, simple areas, built-up felt where there is foot traffic and plant, or a liquid overlay where the existing roof is sound. The survey explains the trade-offs in plain terms.

Green and sedum roofs

Garden rooms and outbuildings in Merthyr Tydfil, as elsewhere, often have small flat roofs that are seen from the house and garden. A sedum finish helps them blend in, provided the structure is strong enough and the roof underneath is built properly.

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 Merthyr Tydfil?

Flat roofing in Merthyr Tydfil: questions

Do you work on commercial roofs in Merthyr Tydfil?

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

Which council handles building control for a flat roof in Merthyr Tydfil?

It depends on where the roof is: in Merthyr Tydfil that's Merthyr Tydfil County Borough 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.

How soon can you survey a roof in Merthyr Tydfil?

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.

How much is a new flat roof in Merthyr Tydfil?

A typical 18 m² EPDM garage roof is £1,450–£2,600 and a 20 m² insulated GRP extension roof is £2,750–£4,950, at Wales guide rates including VAT.

Flat roofing contractors in Merthyr Tydfil