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St Austell · PL25 · Cornwall

Rooflight leak repairs in St Austell

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 St Austell work through these in turn, with the visit priced before booking.

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

St Austell 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.

Fitting across St Austell and nearby

St Austell and the districts around it, PL25, PL26 and PL24, all sit inside our working area. So does the ground between St Austell and Bodmin (9 miles), and on towards Truro (13 miles). When a fitting team is booked, their travel is already in the quoted price, so it does not turn up as a surprise line on the final bill.

What the job includes

  • Failed sealant cut out, joints cleaned, dried and resealed
  • Outside inspection of glass, frame, sealant, flashing and roof covering
  • Inside check of stains, frame drainage channels and the reveal
  • Water lying against the kerb — We check whether rainwater sits against the upstand after it stops raining.
  • Upstand height and condition — We measure the kerb and probe the timber for softness.

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.

Planning, building control and St Austell

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

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 St Austell

Do you charge for a leak investigation in St Austell?

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.

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.

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.

Send photos of the problem in St Austell 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 St Austell

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

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