Flat Roofing in Hillingdon

Hillingdon at a glance

Postcode districts: UB8, UB10, UB11, UB7, UB4, HA4
Council area: London Borough of Hillingdon
Building approval: London Borough of Hillingdon building control, or a registered building control approver
Guide price region: London (+20% on West Midlands rates)

What flat roof work do we do in Hillingdon?

Emergency leak repairs

Landlords with flats or HMOs in Hillingdon are generally expected to deal with leaks promptly once tenants report them. An emergency visit stops the water, and our written report and quote give you what you need to approve the permanent repair.

Single-ply membrane roofing

Single-ply also works on an extension or garage in Hillingdon if you want a light, clean finish in a pale colour. On small roofs it is usually adhered, and while it can cost more than EPDM, it gives the same welded seams and details found on commercial roofs.

Flat roof replacement

A flat roof in Hillingdon is often worth replacing because it is the weak point of the building: heat escapes through an uninsulated deck, rooms below are cold in winter and hot in summer, and condensation marks the ceiling. A warm-roof replacement deals with comfort as well as leaks, so it is worth considering before the roof fails outright.

All flat roof services in Hillingdon:

How much does a flat roof cost in Hillingdon?

Guide prices at London 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	£900–£1,500
Extension (20 m²), EPDM, new deck + insulation	£3,350–£5,850
Emergency temporary weatherproofing visit	£220–£540
Single garage (18 m²), EPDM rubber	£1,900–£3,350
Single garage (18 m²), torch-on felt	£1,800–£3,150

What flat roofs are typical in and around Hillingdon?

In a town like Hillingdon flat roofs are mostly on kitchen extensions and roof terraces behind period houses and mansard and dormer loft conversions. Local weather shapes the specification. The Thames basin is one of the drier parts of Britain at roughly 730 mm of rain a year, but summer heat is the bigger test here: dark membranes on south-facing roofs swing a long way in temperature. Approximate 1991–2020 regional averages based on Met Office data.

Who approves flat roof work in Hillingdon?

Where approval is needed it goes to London Borough of Hillingdon 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 Hillingdon do we cover?

Flat roofing in Hillingdon: questions

Do you cover Hillingdon?

Yes, including postcode districts UB8, UB10, UB11, UB7, UB4, HA4. Send your postcode with your enquiry and we'll arrange a survey.

How much is a new flat roof in Hillingdon?

A typical 18 m² EPDM garage roof is £1,900–£3,350 and a 20 m² insulated EPDM extension roof is £3,350–£5,850, at London guide rates including VAT.

Do flat roofs in Hillingdon 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 Hillingdon that's London Borough of Hillingdon building control, or a registered building control approver. We tell you at the survey and handle it.

Can you repair a leaking flat roof in Hillingdon?

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.