In Porthcawl, as everywhere, we're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed. Send photos and we'll tell you what we think has failed.

Is it time for roof lantern replacement?
- Distorted or sagging frame
- Rotten timber throughout
- Repeated leaks after previous repairs
Common causes we find
Age
Older lanterns can't be brought up to modern performance with repairs alone.
Rot
Timber lanterns left unmaintained.
Covering Porthcawl and nearby
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.
Porthcawl is around 6 miles from Bridgend, and both are within our Mid Glamorgan coverage.
Neighbouring places we cover include Bridgend (6 miles), Port Talbot (8 miles), Maesteg (9 miles).
What should you expect to pay in Porthcawl?
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 Porthcawl: questions
How do I get a price for roof lantern replacement in Porthcawl?
Send a few photos of the lantern and the problem, with your Porthcawl postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Do you need to visit to price roof lantern replacement?
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.
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.
Other lantern repairs in Porthcawl
- Roof lantern leak repairs in Porthcawl
- Roof lantern resealing in Porthcawl
- Upstand and kerb repairs in Porthcawl
- Timber roof lantern repairs in Porthcawl
- Leak investigation and inspection in Porthcawl
- Orangery lantern repairs in Porthcawl
Roof lantern replacement near Porthcawl
More about roof lantern replacement · All roof lantern repairs in Porthcawl