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RooflightInstallers.co.uk
Heston · TW5 · Greater London

Rooflight leak repairs in Heston

Look at the roof after rain. If water sits in a puddle against one side of the rooflight, that ponding may be the real culprit, soaking into the joint where the kerb meets the membrane. Fixing it can mean adjusting the falls, raising the upstand or redressing the membrane, not just fresh sealant. We carry out rooflight leak repairs across Heston by tracing the source first. The visit is charged, at a figure agreed before you book, and any further work is quoted in writing.

Guide price from £145 · Charged visit, then repair priced before any work

What the job costs in Heston

Diagnostic visit

£145 – £195including VAT at 20%

Roof and inside inspected, cause found, written repair price

Reseal and re-flash

£295 – £645including VAT at 20%

Failed sealant and flashing taken out, joints cleaned, resealed and taped

Upstand or membrane repair

£645 – £1,445including VAT at 20%

Rotten kerb section or roof membrane at the upstand repaired

Guide ranges. The first visit is charged and priced before booking; any repair is priced in writing before work starts. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.

Areas around Heston we cover

Covering Heston means covering the people who live and work there, not a single postcode. We take on domestic and commercial jobs in TW5, UB2 and TW4, and are happy to quote further out in Hounslow and Isleworth. If your address sits between towns, tell us and we will confirm whether it falls in our normal area or needs travel set out separately on the quote.

On the day, we cover

  • Outside inspection of glass, frame, sealant, flashing and roof covering
  • Lifted flashing or tape removed and renewed
  • Controlled water test where it helps pin down the entry point
  • Water lying against the kerb — We check whether rainwater sits against the upstand after it stops raining.
  • Warranty and who fitted it — We ask who fitted the rooflight and when before working on it.

How a repair visit goes

Expect the visit to be mostly looking and testing. Dust sheets go down below the rooflight. The fitter checks seals and glass from inside, then gets up on the roof by ladder or tower. Minor jobs such as clearing a blocked drainage channel can often be dealt with there and then. Bigger work, like new flashing or a replacement sealed unit, is measured up and priced in writing afterwards.

Regulations for Heston properties

Two sets of rules matter in England. Planning: a rooflight on a house is normally permitted development if it projects no more than 0.15 m and stays below the highest part of the roof, but flats, listed buildings and Article 4 areas need checking. Building regulations: new openings need approval for the structure and energy performance, and a replacement is a controlled fitting. We are not registered with a competent person scheme, so we notify replacements to building control with a building notice and put the council's fee on the quote.

What to send us

Photos help us price the visit. Send one of the stain or drip inside, one of the rooflight from outside if you can reach a safe viewpoint, and a note of when it leaks: in heavy rain, in wind, or all the time. Add the postcode, TW5 or similar, and how the roof is reached.

Common questions in Heston

Do you charge for a leak investigation in Heston?

Yes. Tracing a leak properly takes time on the roof, a close look at the frame and sometimes a water test, so the visit is charged. We confirm the price before you book, so there are no surprises. If a repair is needed beyond what can be done during the visit, it is quoted separately in writing and you decide whether to go ahead.

Is it condensation or a leak?

Condensation tends to appear on cold mornings, on the inner face of the glass, and runs down the frame. A leak usually follows rain or wind from a particular direction and often stains the ceiling around the opening. Blocked condensation channels can make the two look alike. Photos and a note of when it happens help us narrow it down before the visit.

Can you replace just the misted glass?

Often, yes. Misting between the panes means the sealed unit has failed, but the frame around it may be perfectly sound. Where the maker's design allows the glass to be changed, we measure the unit and fit a replacement, which costs less than a whole new rooflight. Where it does not, or the frame is also worn out, we explain why replacement is the better option.

Got a leak or a misted unit in Heston? Send photos first and we will tell you what the visit costs before booking.

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Leak repairs in Heston

Send photos of the problem and we will tell you what a visit costs before booking.

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