In Caernarfon, as everywhere, aluminium lanterns are strong and slim, but they still rely on gaskets, cappings and seals that wear. Send photos and we'll tell you what we think has failed.
What you might be seeing
- Cappings lifted or rattling
- Chalky or chipped powder coat
- Corrosion at cut edges or fixings in coastal areas
Common causes we find
Worn gaskets
Gaskets do the weatherproofing; they harden and shrink with age.
Thermal movement
Aluminium moves with temperature; seals and fixings take the strain.
About Caernarfon and the LL55 area
Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.
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 Caernarfon as part of Gwynedd, about 8 miles from Bangor, Gwynedd.
Neighbouring places we cover include Llangefni (8 miles), Bangor, Gwynedd (8 miles), Porthmadog (16 miles).
How much should it cost?
Most aluminium roof lantern repairs jobs come in between £195 and £695 ex VAT (£234–£834 including 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.
Aluminium roof lantern repairs in Caernarfon: questions
Do you need to visit to price aluminium 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 Caernarfon do you cover?
As well as Caernarfon, we cover nearby Llangefni, Bangor, Gwynedd, Porthmadog, Pwllheli and the rest of Gwynedd.
What do aluminium lantern repairs cost?
Most component repairs are £195–£695 ex VAT per lantern, confirmed in writing before work starts.
Can you repaint an aluminium lantern?
Yes — see roof lantern respraying for on-site spray finishes.
Other lantern repairs in Caernarfon
- Roof lantern leak repairs in Caernarfon
- Ridge and hip repairs in Caernarfon
- Eaves beam and gutter repairs in Caernarfon
- Cracked lantern glass replacement in Caernarfon
- Roof lantern respraying in Caernarfon
- Commercial roof lantern repairs in Caernarfon
Aluminium roof lantern repairs near Caernarfon
More about aluminium roof lantern repairs · All roof lantern repairs in Caernarfon