Flat Roofing in Warminster

Warminster at a glance

Postcode districts: BA12
Population: about 17,490 (GeoNames)
Council area: Wiltshire Council
Building approval: Wiltshire Council building control, or a registered building control approver
Nearest main town: Bath, about 14 miles
Guide price region: South West (+3% on West Midlands rates)

What flat roof work do we do in Warminster?

Commercial flat roofing

Safety planning matters on commercial sites in Warminster. Every job is planned under CDM, with a method statement, edge protection and covers over rooflights and fragile areas. If asbestos is found, a licensed specialist surveys and removes it before our work starts, so nobody is put at risk.

Green and sedum roofs

If you're replacing an old flat roof in Warminster, it's worth deciding whether to add sedum at the same time. If the structure can take it, that is the ideal moment, because the waterproofing is new and the green layers won't need lifting for a long time.

Warm roof insulation upgrades

Many flat-roofed extensions and dormers in Warminster 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.

All flat roof services in Warminster:

How much does a flat roof cost in Warminster?

Guide prices at South West rates including VAT. New and replacement roofs get a fixed price after a free survey; repair prices are confirmed once we've found the problem.

Job	Guide price inc VAT
Commercial roof (100 m²), single-ply + insulation	£13,650–£22,450
Dormer (8 m²), GRP, scaffold	£1,450–£2,750
Extension (20 m²), EPDM, new deck + insulation	£2,900–£5,050
Extension (20 m²), EPDM, insulation + 1 rooflight upstand	£3,100–£5,400
Single garage (18 m²), GRP fibreglass	£1,850–£3,350

What flat roofs are typical in and around Warminster?

In a town like Warminster flat roofs are mostly on bungalows with flat-roofed side extensions and dormers and newer estates where the first extension roofs are now being replaced. Weather matters on a flat roof. 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. Approximate 1991–2020 regional averages based on Met Office data.

Who approves flat roof work in Warminster?

Where approval is needed it goes to Wiltshire Council building control, or a registered building control approver. 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. How the rules work.

Which places near Warminster do we cover?

Flat roofing in Warminster: questions

Do you cover Warminster?

Yes, including postcode districts BA12. Send your postcode with your enquiry and we'll arrange a survey.

Do flat roofs in Warminster need building control approval?

Often. Replacing more than half of a roof over a heated room usually means insulating it to current standards and notifying building control, and structural changes need approval too. In Warminster that's Wiltshire Council building control, or a registered building control approver. We tell you at the survey and handle it.

How much is a new flat roof in Warminster?

A typical 18 m² EPDM garage roof is £1,650–£2,900 and a 20 m² insulated EPDM extension roof is £2,900–£5,050, at South West guide rates including VAT.

What's the best flat roof system for a house in Warminster?

For most garages and extensions it's EPDM or GRP; torch-on felt is the budget option and liquid suits detailed or overlay jobs. We recommend one at the survey.