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RooflightInstallers.co.uk
Brockley · SE4 · Greater London

Rooflight leak repairs in Brockley

A repair visit is charged, and you know the price before you book it. Here is why: tracing a leak properly takes time on the roof, sometimes a water test, and a careful look inside the frame. Guessing is cheaper on the day and dearer later. For rooflight leak repairs in Brockley we diagnose first, explain what we found in plain terms, and then quote the fix. Typical outcomes are resealing, new flashing, cleared drainage channels, or a replacement glass unit.

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

Brockley guide prices

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.

Coverage in and around Brockley

Covering Brockley means covering the people who live and work there, not a single postcode. We take on domestic and commercial jobs in SE4, SE14 and SE13, and are happy to quote further out in New Cross and Lewisham. 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.

What the job includes

  • Membrane splits at the upstand cut back and patched
  • Rotten kerb sections replaced where the timber has gone soft
  • Lifted flashing or tape removed and renewed
  • Leak or condensation — We work out whether the water is coming from outside or forming inside on cold glass.
  • Upstand height and condition — We measure the kerb and probe the timber for softness.

How a repair visit goes

A repair visit starts outside. The fitter looks at the roof around the unit for ponding, split membrane, loose flashing and failed sealant, then moves inside to check stains, the frame and the condensation channels. Where it helps, a controlled water test narrows down the entry point. Before leaving, they explain what they found and whether a small fix can be done within the agreed visit, or needs a separate written quote.

Do you need permission in Brockley?

England's rules in short: permitted development usually covers a rooflight on a house roof provided it doesn't stick out more than 0.15 m or rise above the ridge, though a listed building always needs consent and some streets have Article 4 directions. Building regulations apply to new openings, and replacements go through building control; as we are not registered with a competent person scheme, we use a building notice and show the fee on the quote. The energy limit for rooflights in existing homes is 2.2 W/m²K, and the 2026 Approved Document L, in force from 24 March 2027, keeps that figure.

What to send us

Before booking a visit, send what you can: a photo of the ceiling or reveal where water shows, a photo of the rooflight from outside, the roof covering if you know it, and whether it is one rooflight or several. We use that to price the visit and to bring the right materials.

Common questions in Brockley

Do you charge for a leak investigation in Brockley?

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.

Should I repair or replace my old leaking rooflight?

It depends on the age and condition of the unit and what has failed. A single perished seal or a blocked channel is worth repairing. A brittle, discoloured dome, a rotten kerb, or several faults at once usually make replacement the better value. After the diagnostic visit we set out both options with prices, so you can decide with the full picture in front of you.

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.

Send photos of the problem in Brockley and we will price the visit before you book it.

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

Leak repairs in Brockley

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

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