Commercial lanterns and atrium rooflights fail in the same ways as domestic ones, but access, safety and disruption matter more. Send photos from Portstewart (BT55) 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
- Multiple lanterns on one roof needing a programme
- Managed buildings with planned maintenance needs
Common causes we find
Scale
More lanterns, more joints, more drainage to block.
Access
Roof access, edge protection and permits all affect the plan.
Covering Portstewart 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.
Portstewart is around 27 miles from Derry~Londonderry, and both are within our County Londonderry coverage.
Close by, we also cover Coleraine (4 miles), Ballymoney (11 miles), Limavady (13 miles).
How much should it cost?
Typical range: £495–£2,995 ex VAT, which is £594–£3,594 with 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 Portstewart: 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 Portstewart?
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.
Do you provide RAMS?
Yes, before work starts.
Can you invoice a managing agent?
Yes — tell us who the client and invoice contact are when you enquire.
Other lantern repairs in Portstewart
- Cracked lantern glass replacement in Portstewart
- Condensation diagnosis and fixes in Portstewart
- Aluminium roof lantern repairs in Portstewart
- Flat rooflight and skylight repairs in Portstewart
- Urgent leak make-safe in Portstewart
- Orangery lantern repairs in Portstewart
Commercial roof lantern repairs near Portstewart
More about commercial roof lantern repairs · All roof lantern repairs in Portstewart