Flat Roofing Contractors in Bristol

Bristol at a glance

Largest towns: Bristol
Postcode areas: BS
Building control: Bristol City Council
Neighbouring areas: Somerset · Gloucestershire · Wiltshire · Herefordshire
Guide price region: South West (+3% on West Midlands rates)

Which towns in Bristol do we cover?

1 town has its own page; we cover everywhere in between too.

Bristol

What does a flat roof cost in Bristol?

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

Job	Guide price inc VAT
Commercial roof (100 m²), single-ply + insulation	£13,650–£22,450
Upstand or flashing repair	£260–£670
Extension (20 m²), felt, new deck + insulation	£2,800–£4,850
Extension (20 m²), EPDM, insulation + 1 rooflight upstand	£3,100–£5,400
Single garage (18 m²), EPDM rubber	£1,650–£2,900
Dormer (8 m²), GRP, scaffold	£1,450–£2,750

Which flat roofs are common in Bristol?

The climate is part of the brief. The South West averages roughly 1,260 mm of rain a year and many roofs face wind off the Atlantic, so we specify fixings and edge details for wind uplift as well as drainage. Across Bristol, flat roofs are typically found on shops with flat-roofed rear stores below flats, low-rise post-war blocks of flats and 1930s semis with flat-roofed garages and kitchen extensions. Approximate 1991–2020 regional averages based on Met Office data.

Which flat roof jobs do we take on in Bristol?

Emergency leak repairs

Flat roofs in Bristol, as elsewhere, often fail during the first heavy storm of autumn or after a hard frost, when an old seam finally opens. That is often when people find water running down a wall or through a light fitting, and a temporary repair is needed quickly.

Dormer roofs

If your dormer in Bristol was added years ago with a basic felt roof and little insulation, it will tend to fail at the edges first, and they leave the loft room cold in winter and hot in summer. A warm-roof replacement deals with both problems at once.

Warm roof insulation upgrades

Many flat-roofed extensions and dormers in Bristol were built with little or no insulation, or with a cold roof that was never properly ventilated. Those rooms are often hard to heat in winter and can suffer condensation, mould and, in time, a rotten deck.

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 services do we offer in Bristol?

Flat roofing in Bristol: questions

How soon can you survey a roof in Bristol?

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 roofing systems do you fit in Bristol?

EPDM rubber, GRP fibreglass, torch-on felt, liquid-applied and single-ply, plus mastic asphalt repairs. The survey decides which suits your roof.

Who approves flat roof work in Bristol?

Replacing more than half of a roof over a heated room usually counts as renovating a thermal element, so it is insulated to current standards and notified to building control. We check this at the survey and handle the application as part of the job.

Do you cover all of Bristol?

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

Flat roofing contractors in Bristol