Flat Roofing in Hounslow

Hounslow at a glance

Postcode districts: TW3, TW5, TW4, TW7, UB2, TW14, UB1, TW13 and 2 more
Council area: London Borough of Hounslow
Building approval: London Borough of Hounslow 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 Hounslow?

Flats, HMOs and block roofs

Leaseholders in Hounslow want to see where their money goes. Our itemised quotes show each element of the job separately, including scaffold, insulation and provisional sums for hidden defects, which makes them easier to share and compare when the freeholder or agent is consulting on the work.

Green and sedum roofs

Homeowners in Hounslow building a new extension may find a green roof can help with a planning application, as some councils encourage them for biodiversity and slower rainwater run-off. It is worth raising early with your designer, before the roof structure is drawn up, so the joists can be sized for the extra weight.

Liquid-applied roofing

Where a building in Hounslow has an older asphalt or concrete roof that is sound but tiring, a compatible liquid system can sometimes refresh it. The key is matching the primer and system to the substrate and dealing with any blisters, cracks or poor falls before the membrane goes on.

All flat roof services in Hounslow:

How much does a flat roof cost in Hounslow?

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
Localised patch repair	£180–£600
Single garage (18 m²), torch-on felt	£1,800–£3,150
Balcony (12 m²), liquid-applied, scaffold	£2,300–£3,900
Extension (20 m²), EPDM, insulation + 1 rooflight upstand	£3,600–£6,300
Single garage (18 m²), GRP fibreglass	£2,150–£3,900

What flat roofs are typical in and around Hounslow?

In a town like Hounslow flat roofs are mostly on mansion blocks and purpose-built flats with large flat roofs and shops with flat-roofed stores below flats above. 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 Hounslow?

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

Flat roofing in Hounslow: questions

Do you cover Hounslow?

Yes, including postcode districts TW3, TW5, TW4, TW7, UB2, TW14 and 4 more. Send your postcode with your enquiry and we'll arrange a survey.

Do flat roofs in Hounslow 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 Hounslow that's London Borough of Hounslow 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 Hounslow?

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.

How much is a new flat roof in Hounslow?

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.