We're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed. We carry out roof lantern replacement across Gwynedd, with a guide price from your photos and a fixed price in writing before any work starts.
Signs you need roof lantern replacement
- Several misted or cracked units
- Rotten timber throughout
- Single-glazed or very poor thermal performance
What usually causes it?
Structural damage
Impact or movement distorts the frame.
Rot
Timber lanterns left unmaintained.
Roof lanterns in Gwynedd
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.
What should you expect to pay for roof lantern replacement in Gwynedd?
Guide price for roof lantern replacement: £1,995–£4,995 ex VAT (£2,394–£5,994 inc VAT), supplied and fitted. 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?
Most lantern repairs in Wales need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 (as applied in Wales) apply and we confirm how the work will be signed off before we start. 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 replacement in Gwynedd: questions
Can the new lantern use the existing opening?
Usually, if the kerb is sound and the size suits a standard or made-to-measure lantern.
Will you tell me if repair is enough?
Yes. We'd rather do a repair that works than sell a lantern you don't need.
Which towns in Gwynedd do you cover?
All of Gwynedd, including Bangor, Gwynedd, Caernarfon, Dolgellau, Holyhead, Llangefni, Porthmadog. Rural and remote addresses are covered by arrangement.
How do I get a price for roof lantern replacement in Gwynedd?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in Gwynedd
- Glazing bar and capping repairs in Gwynedd
- Ridge and hip repairs in Gwynedd
- Eaves beam and gutter repairs in Gwynedd
- Upstand and kerb repairs in Gwynedd
- Solar control and self-cleaning glass upgrades in Gwynedd
- uPVC roof lantern repairs in Gwynedd
Nearby areas
- Roof lantern replacement in Clwyd
- Roof lantern replacement in Powys
- Roof lantern replacement in Dyfed
- Roof lantern replacement in West Glamorgan
- Roof lantern replacement in Mid Glamorgan
More about roof lantern replacement · All roof lantern repairs in Gwynedd