Flat Roofing Contractors in Swansea

Swansea at a glance

Largest towns: Swansea, Gorseinon, Clydach
Postcode areas: SA
Building control: Swansea Council
Neighbouring areas: Neath Port Talbot · Carmarthenshire · Bridgend · Rhondda Cynon Taf
Guide price region: Wales (−8% on West Midlands rates)

Which towns in Swansea do we cover?

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

What does a flat roof cost in Swansea?

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

Job	Guide price inc VAT
Condition survey and leak investigation	£140–£280
Porch or bay (4 m²), EPDM	£700–£1,150
Extension (20 m²), EPDM, insulation + 1 rooflight upstand	£2,750–£4,800
Upstand or flashing repair	£230–£600
Localised patch repair	£140–£460
Emergency temporary weatherproofing visit	£170–£410

Which flat roofs are common in Swansea?

Weather matters on a flat roof. 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 Swansea, flat roofs are typically found on 1930s semis with flat-roofed garages and kitchen extensions, terraced streets with flat-roofed rear kitchens and bathrooms and shops with flat-roofed rear stores below flats. Approximate 1991–2020 regional averages based on Met Office data.

Which flat roof jobs do we take on in Swansea?

Flat roof surveys and leak tracing

Older extensions and garages in Swansea frequently have felt roofs that have been patched several times. Before paying for another repair, many owners want to know whether the roof has much life left. That is exactly the question a condition survey answers.

Balconies and roof terraces

Settled, rocking or cracked paving is a common reason to re-waterproof a terrace in Swansea. Slabs bedded directly on the membrane can damage it over time. Relaying them on adjustable pedestals protects the waterproofing and gives a level surface that drains underneath.

Single-ply membrane roofing

Single-ply is a common choice for medium and large flat roofs in Swansea because it covers big areas quickly, is light on the structure and has a long typical life. Wide rolls mean fewer seams, and those seams are welded and probed rather than glued.

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 Swansea?

Flat roofing in Swansea: questions

Do you cover all of Swansea?

Yes. We cover the whole of Swansea, including Swansea, Gorseinon, Clydach. If your town isn't listed, send your postcode and we'll confirm.

How soon can you survey a roof in Swansea?

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.

Do you work on commercial roofs in Swansea?

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

Who approves flat roof work in Swansea?

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.

Flat roofing contractors in Swansea