Commercial lanterns and atrium rooflights fail in the same ways as domestic ones, but access, safety and disruption matter more. Send photos from Belfast (BT1) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Leaks into trading or office areas
- Insurance or landlord requirement for a report
- Managed buildings with planned maintenance needs
Why it happens
Scale
More lanterns, more joints, more drainage to block.
Access
Roof access, edge protection and permits all affect the plan.
Covering Belfast 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.
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).
How much should it cost?
Guide price for commercial roof lantern repairs: £495–£2,995 ex VAT (£594–£3,594 inc 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?
In Northern Ireland, 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 (Northern Ireland) 2012, so we set out the route in writing first. 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.
Commercial roof lantern repairs in Belfast: questions
Do you need to visit to price commercial 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.
Can you repair a lantern someone else installed in Belfast?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
What do commercial lantern repairs cost?
From about £495 ex VAT per lantern; programmes, access equipment and out-of-hours work are priced on survey and confirmed in writing.
Do you provide RAMS?
Yes, before work starts.
Other lantern repairs in Belfast
- Roof lantern leak repairs in Belfast
- Roof lantern resealing in Belfast
- Slipped glass panel repairs in Belfast
- uPVC roof lantern repairs in Belfast
- Roof lantern replacement in Belfast
- Orangery lantern repairs in Belfast
Commercial roof lantern repairs near Belfast
More about commercial roof lantern repairs · All roof lantern repairs in Belfast