In Belfast, as everywhere, many uPVC roof lanterns have an aluminium core with uPVC cladding and cappings. Send photos and we'll tell you what we think has failed.

Is it time for uPVC roof lantern repairs?
- Cracked cappings or ridge covers
- Green algae along the bars
- Leaks at the ridge or eaves
What usually causes it?
UV ageing
uPVC components become brittle and crack after years of sun.
Clip failure
Clip-on cappings can lose their grip and lift.
Covering Belfast and nearby
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.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
Close by, we also cover Newtownabbey (4 miles), Holywood (5 miles), Lisburn (7 miles).
What should you expect to pay in Belfast?
Most uPVC roof lantern repairs jobs come in between £175 and £595 ex VAT (£210–£714 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 Northern Ireland?
Most lantern repairs in Northern Ireland need no approval at all. Where a job turns into a replacement, the Building Regulations (Northern Ireland) 2012 apply and we confirm how the work will be signed off before we start. Listed buildings in Northern Ireland need listed building consent from the council for alterations; check with the council's planning service 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.
uPVC roof lantern repairs in Belfast: questions
Do you need to visit to price uPVC 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 Belfast do you cover?
As well as Belfast, we cover nearby Newtownabbey, Holywood, Lisburn, Newtownards and the rest of County Antrim.
Is it worth repairing an old uPVC lantern?
If the glass is sound and the frame isn't distorted, a repair is usually far cheaper than replacement.
Can you change my uPVC lantern's colour?
Yes, with a respray suitable for uPVC.
Other lantern repairs in Belfast
- Upstand and kerb repairs in Belfast
- Flat roof junction and flashing repairs in Belfast
- Cracked lantern glass replacement in Belfast
- Slipped glass panel repairs in Belfast
- Solar control and self-cleaning glass upgrades in Belfast
- Orangery lantern repairs in Belfast
uPVC roof lantern repairs near Belfast
More about uPVC roof lantern repairs · All roof lantern repairs in Belfast