We carry out roof lantern resealing in Pwllheli and across the LL53 area. Resealing is the planned, whole-lantern version of a leak repair: we cut out the old, failed sealant, clean every joint back to a sound surface and reseal the cappings, ridge and eaves with materials that suit the frame.
Is it time for roof lantern resealing?
- Cracked, split or shrunken sealant along the bars
- Several small leaks rather than one obvious one
- Sealant applied over sealant from previous patch repairs
What usually causes it?
Wrong product used
General-purpose or acetoxy silicone can fail early on some frames and coatings. Glazing joints need a low-modulus, compatible sealant.
Patch over patch
Fresh sealant run over old, dirty sealant rarely bonds. It looks fixed for a season and then lets go.
About Pwllheli and the LL53 area
Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.
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.
From Bangor, Gwynedd to Pwllheli is roughly 26 miles — all part of the Gwynedd area we cover.
If you're just outside Pwllheli, we also cover Porthmadog (12 miles), Caernarfon (18 miles), Dolgellau (24 miles).
Guide prices for roof lantern resealing in Pwllheli
Typical range: £245–£495 ex VAT, which is £294–£594 with 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?
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.
Roof lantern resealing in Pwllheli: questions
Can you repair a lantern someone else installed in Pwllheli?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
Which places near Pwllheli do you cover?
As well as Pwllheli, we cover nearby Porthmadog, Caernarfon, Dolgellau, Llangefni and the rest of Gwynedd.
Can you match the colour of my frame?
We use sealants in common frame colours such as anthracite grey, black and white, and match as closely as the range allows.
How long does resealing take?
Most domestic lanterns take a few hours in dry weather.
Other lantern repairs in Pwllheli
- Roof lantern leak repairs in Pwllheli
- Misted glass unit replacement in Pwllheli
- Flat rooflight and skylight repairs in Pwllheli
- Leak investigation and inspection in Pwllheli
- Urgent leak make-safe in Pwllheli
- Commercial roof lantern repairs in Pwllheli
Roof lantern resealing near Pwllheli
More about roof lantern resealing · All roof lantern repairs in Pwllheli