Flat Roofing in St Austell

St Austell at a glance

Postcode districts: PL25
Population: about 24,360 (GeoNames)
Council area: Cornwall Council
Building approval: Cornwall Council building control, or a registered building control approver
Guide price region: South West (+3% on West Midlands rates)

What flat roof work do we do in St Austell?

Torch-on felt roofing

Torch-on felt suits property owners in St Austell who want a dependable, layered roof without paying the top price per square metre. With two or three bonded layers, a single small defect in one sheet need not lead to a leak, which is a real advantage on larger roofs that are hard to inspect often.

EPDM rubber roofing

Rubber is a sensible pick in St Austell where a roof sits close to bedrooms or a kitchen and you would rather avoid hot works. It suits porches, bays and dormers too, where the small area means a single sheet can cover the whole roof with no joins at all.

Flat roof replacement

A mineral felt roof laid decades ago may still look intact from the ground in St Austell, yet have lost its chippings, cracked at the laps and pulled away at the upstands. Those faults let water track under the covering, so by the time a ceiling stain appears, the deck has often been wet for some time.

All flat roof services in St Austell:

How much does a flat roof cost in St Austell?

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
Porch or bay (4 m²), EPDM	£750–£1,300
Single garage (18 m²), torch-on felt	£1,550–£2,700
Single garage (18 m²), EPDM rubber	£1,650–£2,900
Single garage (18 m²), GRP fibreglass	£1,850–£3,350
Extension (20 m²), EPDM, new deck + insulation	£2,900–£5,050

What flat roofs are typical in and around St Austell?

In a town like St Austell flat roofs are mostly on shops with flat-roofed rear stores below flats and 1930s semis with flat-roofed garages and kitchen extensions. 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. Approximate 1991–2020 regional averages based on Met Office data.

Who approves flat roof work in St Austell?

Where approval is needed it goes to Cornwall 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 St Austell do we cover?

Flat roofing in St Austell: questions

Do you cover St Austell?

Yes, including postcode districts PL25. Send your postcode with your enquiry and we'll arrange a survey.

Is a free survey available in St Austell?

Yes, for new and replacement roofs. A standalone condition survey or leak investigation report is a paid service.

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

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.

Do flat roofs in St Austell 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 St Austell that's Cornwall Council building control, or a registered building control approver. We tell you at the survey and handle it.