Flat RoofingContractors

Flat roof systems

Liquid-applied roofing in Westbury

Have a flat roof in Westbury with awkward details, a balcony that leaks at the threshold, or an old covering that is still dry underneath? A liquid membrane may suit. We survey free of charge, name the system and thickness in a fixed quote, and register the manufacturer guarantee where the system allows.

Grey liquid waterproofing and reinforcement fleece rolled around a vent pipe on a flat roofComputer-generated example image

Westbury at a glance

Postcode districts
BA13
Population
about 16,989 (GeoNames)
Council area
Wiltshire Council
Building approval
Wiltshire Council building control, or a registered building control approver
Nearest main town
Bath, about 11 miles
Guide price region
South West (+3% on West Midlands rates)

Why choose a liquid-applied roof in Westbury?

For businesses and landlords in Westbury, a cold-applied liquid roof means no flame on site and, with some systems, a short cure time. That can make it easier to work around occupied buildings, tenants and opening hours than a system that needs hot works or a long strip-out.

In and around Westbury, flat roofs are typically found on low-rise post-war blocks of flats, and on 1960s and 1970s link-detached houses with flat-roofed garages and porches. 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.

How much does a liquid-applied roof cost in Westbury?

At South West guide rates, a typical 18 m² garage roof in a liquid-applied system comes to £2,100–£3,350 including VAT. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Single garage (18 m²), liquid-applied£2,100–£3,350
Balcony (12 m²), liquid-applied, scaffold£1,950–£3,350
Single garage (18 m²), EPDM rubber£1,650–£2,900
Extension (20 m²), EPDM, new deck + insulation£2,900–£5,050

When is a liquid roof the best option, and when is it not?

A liquid roof is often the best option for roofs crowded with pipes, vents and upstands, for balconies and walkways, and for overlaying a structurally sound roof that is starting to fail. It is the wrong choice when the deck is rotten, the insulation is wet or the falls are badly wrong.

Advantages: continuous finish with no laps; forms details around pipes and odd shapes easily; cold-applied with no flame; can often go over felt, asphalt or concrete; some systems take foot traffic.

Disadvantages: higher cost per square metre than felt or EPDM; needs dry weather and careful thickness control; only as good as the surface it is bonded to; product quality varies widely across the market.

For a straightforward re-roof on a fresh deck, EPDM or GRP may offer better value. Larger flat areas suit torch-on felt or single-ply. On a sound mastic asphalt roof, a compatible liquid system can sometimes be applied over it. See also our guide to overlay or strip.

What's included?

  • Fleece-reinforced liquid membrane applied to the specified thickness
  • Detailing of upstands, outlets, pipes and corners before the main area
  • Top coat with optional anti-slip finish, and guarantee registration where available
  • Surface cleaning, repairs and removal of loose material

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 nearby areas do we also cover?

Liquid-applied roofing in Westbury: questions

Do you cover Westbury?

Yes. Westbury is part of our Wiltshire coverage, including postcode districts BA13. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.

Who checks building regulations for a flat roof in Westbury?

Where the work needs approval it goes to Wiltshire Council building control, or a registered building control approver. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.

How much does a liquid-applied roof cost in Westbury?

£2,100–£3,350 for a typical 18 m² garage roof in a liquid-applied system, at South West guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Does a liquid roof smell when it is applied?

Some systems, particularly PMMA, have a strong odour during application, while many polyurethane and water-based products are milder. We tell you what to expect and plan around windows and vents.

Can liquid roofing be applied in the rain?

No. The surface must be dry, and most systems need a dry window while they cure. Some fast-curing products shorten that window, but the team will not apply onto a damp roof.

Other flat roof work in Westbury

Liquid-applied roofing in Westbury: get a fixed price

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

Call usGet a guide price