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Durham · DH1 · County Durham

Rooflight leak repairs in Durham

Leaks and misting around a rooflight tend to come from a short list of causes. Sealant that has cracked or pulled away. Flashing or membrane that has perished at the edges. Condensation channels blocked with dirt, so water backs up inside the frame. Ponding water lying against the kerb because the roof falls the wrong way. Or a sealed glass unit that has failed and misted between the panes. Our rooflight leak repairs visits in Durham work through these in turn, with the visit priced before booking.

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

What the job costs in Durham

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.

Fitting across Durham and nearby

Fitters travel to the job, so the address is what counts. In Durham that means postcode districts DH1, DH7 and DH6, and the same teams can just as easily take on work in Spennymoor, about 5 miles away, or Chester-le-Street at roughly 6 miles. Survey and fitting dates are offered according to fitter availability, and travel is built into the quote rather than added later.

On the day, we cover

  • Rotten kerb sections replaced where the timber has gone soft
  • Lifted flashing or tape removed and renewed
  • Membrane splits at the upstand cut back and patched
  • Upstand height and condition — We measure the kerb and probe the timber for softness.
  • Age of the rooflight — We weigh the age and condition of the unit before recommending a repair.

How a repair visit goes

Most of the effort on a repair visit goes into finding the cause. We start with your account of when it leaks: heavy rain, wind from one direction, or cold mornings, which points towards condensation. That shapes where we look first. Findings are photographed so you can see them for yourself. You then get a clear explanation and, where needed, a written repair quote, fixed before anything further is booked.

Planning, building control and Durham

In England, a new rooflight opening generally needs building regulations approval because the roof structure is altered and the glazing must meet energy rules: 2.2 W/m²K for a rooflight in an existing home, or 1.4 W/m²K (or WER Band B) for a roof window. Planning is often not needed on a house: permitted development covers rooflights that stand no more than 0.15 m proud of the roof slope and sit below the highest part of the roof. Flats, listed buildings and areas with an Article 4 direction are different, so we check your address first.

What to send us

Tell us where the water appears, how long it has been happening and what the weather was doing when it started. A couple of photos from inside and outside, plus the postcode, let us price the visit before you book and plan what the fitter brings.

Common questions in Durham

Do you charge for a leak investigation in Durham?

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.

Why is my rooflight leaking?

The usual causes are sealant that has cracked or pulled away, flashing or membrane that has perished at the edges, condensation channels blocked with dirt, water ponding against the kerb, or a seal failing on the glass unit. Sometimes the water is coming in elsewhere and running along to the rooflight. A diagnostic visit finds the real source before anyone starts applying sealant.

Will resealing fix my leaking rooflight?

Sometimes. If the sealant has simply aged and the flashing, upstand and glass are sound, a careful reseal on a dry day can solve it. If the real problem is ponding water, a low upstand or a perished membrane, fresh sealant will only hide it for a while. We tell you which one you are dealing with before recommending any work, and quote the proper fix in writing.

Got a leak or a misted unit in Durham? 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 Durham

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

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