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 West Glamorgan, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need roof lantern replacement
- Distorted or sagging frame
- Rotten timber throughout
- Repeated leaks after previous repairs
What usually causes it?
Structural damage
Impact or movement distorts the frame.
Rot
Timber lanterns left unmaintained.
Roof lanterns in West Glamorgan
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.
What should you expect to pay for roof lantern replacement in West Glamorgan?
Typical range: £1,995–£4,995 ex VAT, which is £2,394–£5,994 with 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?
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 replacement in West Glamorgan: questions
How much does a replacement roof lantern cost?
Standard sizes typically £1,995–£4,995 ex VAT supplied and fitted; bespoke sizes and kerb rebuilds are priced on survey. You get the fixed price in writing first.
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.
Which towns in West Glamorgan do you cover?
All of West Glamorgan, including Swansea, Neath, Gorseinon, Port Talbot. Rural and remote addresses are covered by arrangement.
How do I get a price for roof lantern replacement in West Glamorgan?
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 West Glamorgan
- Roof lantern leak repairs in West Glamorgan
- Eaves beam and gutter repairs in West Glamorgan
- Solar control and self-cleaning glass upgrades in West Glamorgan
- Timber roof lantern repairs in West Glamorgan
- uPVC roof lantern repairs in West Glamorgan
- Commercial roof lantern repairs in West Glamorgan
Nearby areas
- Roof lantern replacement in Mid Glamorgan
- Roof lantern replacement in South Glamorgan
- Roof lantern replacement in Dyfed
- Roof lantern replacement in Gwent
- Roof lantern replacement in Powys
More about roof lantern replacement · All roof lantern repairs in West Glamorgan