Flat RoofingContractors

Flat roof systems

Liquid-applied roofing in Andover

Liquid-applied roofing in Andover: primer, reinforced base coat and top coat, built up wet to form a single jointless membrane. It goes on cold, follows any shape and, where the old roof is sound, can often be laid without stripping. Our vetted teams work under S&K from survey to final check.

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

Andover at a glance

Postcode districts
SP10
Population
about 42,276 (GeoNames)
Council area
Test Valley Borough Council
Building approval
Test Valley Borough Council building control, or a registered building control approver
Nearest main town
Basingstoke, about 18 miles
Guide price region
South East (+10% on West Midlands rates)

Why choose a liquid-applied roof in Andover?

For businesses and landlords in Andover, 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.

Andover's flat roofs are mostly on bungalows with flat-roofed side extensions and dormers, with plenty on shops with flat-roofed rear stores below flats too. Much of the South East sits in the drier Thames catchment at roughly 730 mm of rain a year, so the usual failures are at joints, upstands and outlets rather than from sheer volume of rain.

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

At South East guide rates, a typical 18 m² garage roof in a liquid-applied system comes to £2,250–£3,600 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£2,250–£3,600
Balcony (12 m²), liquid-applied, scaffold£2,100–£3,600
Single garage (18 m²), EPDM rubber£1,750–£3,100
Extension (20 m²), EPDM, new deck + insulation£3,100–£5,350

How long does a liquid-applied roof last, and how is it guaranteed?

Cold liquid-applied roofs typically last 10 to 25 years or more, depending on the product and the thickness applied. One reinforced system has a BBA assessment of over 25 years, while lighter coatings designed to extend an existing roof sit at the lower end of the range.

Because life varies so much by product, it pays to know exactly what is being applied. Your quote should name the system, the reinforcement and the build-up.

Manufacturer guarantees are often tied to a named system, with lengths such as 10, 15 or 20 years depending on the specification, and some require registration or an approved applicator. We handle that registration where the system permits it. Every re-roof also carries our written workmanship guarantee, with the length set out in the quote, and you can ask about insurance-backed options. A BBA certificate is a product assessment, not a guarantee; our guarantees guide explains the difference.

What's included?

  • Primer matched to the substrate
  • Fleece-reinforced liquid membrane applied to the specified thickness
  • Top coat with optional anti-slip finish, and guarantee registration where available
  • Detailing of upstands, outlets, pipes and corners before the main area

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 Andover: questions

Do you cover Andover?

Yes. Andover is part of our Hampshire coverage, including postcode districts SP10. 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 Andover?

Where the work needs approval it goes to Test Valley Borough 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 Andover?

£2,250–£3,600 for a typical 18 m² garage roof in a liquid-applied system, at South East guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

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.

How long does a liquid roof take to cure?

That depends on the product and the weather. Some systems are rain-resistant within an hour or so, others take longer, and full cure can take a day or more in cool weather.

Other flat roof work in Andover

Liquid-applied roofing in Andover: get a fixed price

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

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