Timber roof lanterns are beautiful and repairable, but they need sound paint, sound beads and dry timber. Send photos from Porthmadog (LL49) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Flaking or blistered paint on bars or eaves
- Putty or beads cracking and lifting
- Leaks at bar joints
What usually causes it?
Water trapped by beads
Glazing beads and putty can trap water against the timber if their seals fail.
No maintenance
Timber needs redecorating on a cycle; skipped cycles turn small repairs into big ones.
Roof lanterns in Porthmadog
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 Porthmadog as part of Gwynedd, about 21 miles from Bangor, Gwynedd.
We also cover nearby Pwllheli (12 miles), Caernarfon (16 miles), Dolgellau (16 miles).
How much should it cost?
Guide price for timber roof lantern repairs: £395–£1,995 ex VAT (£474–£2,394 inc VAT), per lantern. 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?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Wales. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010 (as applied in Wales); we confirm in writing which route applies before any replacement. 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.
Timber roof lantern repairs in Porthmadog: questions
Do you need to visit to price timber roof lantern repairs?
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 Porthmadog do you cover?
As well as Porthmadog, we cover nearby Pwllheli, Caernarfon, Dolgellau, Bangor, Gwynedd and the rest of Gwynedd.
How much do timber lantern repairs cost?
From about £395 ex VAT for localised repairs up to around £1,995 for extensive restoration of a standard lantern, confirmed in writing before work starts.
Do you work on listed buildings?
Yes. Listed building consent may be needed for changes; like-for-like repair is generally treated differently from alteration, but check with your council's conservation officer before work.
Other lantern repairs in Porthmadog
- Glazing bar and capping repairs in Porthmadog
- Flat roof junction and flashing repairs in Porthmadog
- Opening vent and actuator repairs in Porthmadog
- Leak investigation and inspection in Porthmadog
- Urgent leak make-safe in Porthmadog
- Commercial roof lantern repairs in Porthmadog
Timber roof lantern repairs near Porthmadog
More about timber roof lantern repairs · All roof lantern repairs in Porthmadog