When a lantern is letting in a lot of water or the glass is broken, the first job is to stop more damage. Send photos from Dolgellau (LL40) and we'll tell you which it is — with the price agreed in writing before any work.

Signs you need urgent leak make-safe
- Water pouring in during a storm
- Broken or missing glass
- Water near light fittings or sockets
Common causes we find
Storm damage
High winds can lift cappings and vents.
Sudden seal failure
A failing joint can let go in heavy rain.
About Dolgellau and the LL40 area
Western and upland parts of the UK get more rain and more wind-driven rain than the east, and that's what finds weak cappings and blocked eaves first. Lanterns here benefit from a check of the bars on the most exposed face and a clear eaves channel before winter.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
We cover Dolgellau as part of Gwynedd, about 35 miles from Bangor, Gwynedd.
We also cover nearby Machynlleth (11 miles), Porthmadog (16 miles), Aberystwyth (24 miles).
How much should it cost?
Guide price for urgent leak make-safe: £195–£395 ex VAT (£234–£474 inc VAT), per visit. Towers or scaffold, where needed, are priced into the quote. Your fixed price is confirmed in writing before any work starts.
Do you need permission in Wales?
In Wales, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations 2010 (as applied in Wales), so we set out the route in writing first. Listed buildings in Wales need listed building consent from the local planning authority for alterations, with Cadw guidance on historic buildings; check with the council before changing a lantern on a listed property.
How does it work?
- Send photosWhatsApp or upload a few photos and tell us when it leaks.
- Guide priceWe reply with a guide price and whether a visit is needed.
- Fixed price in writingYou approve the price and the date before anything starts.
- Repair and testWe fix what's failed, water-test where it matters, and send photos.
Urgent leak make-safe in Dolgellau: questions
Do you need to visit to price urgent leak make-safe?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
Which places near Dolgellau do you cover?
As well as Dolgellau, we cover nearby Machynlleth, Porthmadog, Aberystwyth, Pwllheli and the rest of Gwynedd.
What does a make-safe cost?
Usually £195–£395 ex VAT, confirmed before we attend. The permanent repair is quoted separately.
Will my insurer pay?
Storm damage is often covered; check your policy. We provide photos and a written quote.
Other lantern repairs in Dolgellau
- Roof lantern resealing in Dolgellau
- Slipped glass panel repairs in Dolgellau
- Condensation diagnosis and fixes in Dolgellau
- Opening vent and actuator repairs in Dolgellau
- Orangery lantern repairs in Dolgellau
- Commercial roof lantern repairs in Dolgellau
Urgent leak make-safe near Dolgellau
More about urgent leak make-safe · All roof lantern repairs in Dolgellau