Flat Roofing in Lewes

Lewes at a glance

Postcode districts: BN7
Population: about 17,297 (GeoNames)
Council area: Lewes District Council
Building approval: Lewes District Council building control, or a registered building control approver
Nearest main town: Brighton, about 7 miles
Guide price region: South East (+10% on West Midlands rates)

What flat roof work do we do in Lewes?

Extension and kitchen roofs

Extension roofs in Lewes are often replaced because the original was built cheaply: thin chipboard decks, little or no insulation and felt turned up the wall without a proper flashing. Twenty or thirty years on, those weaknesses show up as leaks at the back wall and a cold, damp ceiling.

EPDM rubber roofing

Choose EPDM in Lewes if you want a long service life without paying for a hard, walkable finish you do not need. With good detailing it typically lasts 25 years or more, and manufacturer material guarantees are available on many EPDM systems, registered for you where the system allows.

Green and sedum roofs

Rainwater from flat roofs in Lewes runs off quickly in heavy showers. A green roof holds some of that water back and releases it more slowly, which is one reason some owners and developers choose one. The flowering sedum also draws in bees and other insects.

All flat roof services in Lewes:

How much does a flat roof cost in Lewes?

Guide prices at South East 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
Extension (20 m²), EPDM, insulation + 1 rooflight upstand	£3,300–£5,750
Condition survey and leak investigation	£170–£330
Extension (20 m²), GRP, new deck + insulation	£3,300–£5,900
Upstand or flashing repair	£280–£720
Dormer (8 m²), GRP, scaffold	£1,550–£2,900

What flat roofs are typical in and around Lewes?

In a town like Lewes flat roofs are mostly on low-rise post-war blocks of flats and shops with flat-roofed rear stores below flats. Local weather shapes the specification. 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. Approximate 1991–2020 regional averages based on Met Office data.

Who approves flat roof work in Lewes?

Where approval is needed it goes to Lewes District 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 Lewes do we cover?

Flat roofing in Lewes: questions

Do you cover Lewes?

Yes, including postcode districts BN7. Send your postcode with your enquiry and we'll arrange a survey.

How much is a new flat roof in Lewes?

A typical 18 m² EPDM garage roof is £1,750–£3,100 and a 20 m² insulated EPDM extension roof is £3,100–£5,350, at South East guide rates including VAT.

Can you repair a leaking flat roof in Lewes?

Yes. We trace where the water is actually getting in first, because the leak inside is rarely under the defect outside, then repair with materials compatible with your roof.

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