In Portstewart, as everywhere, when a lantern is letting in a lot of water or the glass is broken, the first job is to stop more damage. Send photos and we'll tell you what we think has failed.

Is it time for urgent leak make-safe?
- Water pouring in during a storm
- Broken or missing glass
- A capping or vent blown off
What usually causes it?
Storm damage
High winds can lift cappings and vents.
Sudden seal failure
A failing joint can let go in heavy rain.
Covering Portstewart and nearby
Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.
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?
Guide price for urgent leak make-safe: £195–£395 ex VAT (£234–£474 inc VAT), per visit. 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.
Urgent leak make-safe in Portstewart: questions
Do you cover Portstewart?
Yes. We cover Portstewart, including the BT55 postcode area, as part of County Londonderry. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
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.
How quickly can you come?
We arrange make-safe visits as soon as we can, depending on weather, access and where you are. We'll give you an honest time when you call.
What does a make-safe cost?
Usually £195–£395 ex VAT, confirmed before we attend. The permanent repair is quoted separately.
Other lantern repairs in Portstewart
- Condensation diagnosis and fixes in Portstewart
- Timber roof lantern repairs in Portstewart
- Opening vent and actuator repairs in Portstewart
- Flat rooflight and skylight repairs in Portstewart
- Leak investigation and inspection in Portstewart
- Roof lantern replacement in Portstewart
Urgent leak make-safe near Portstewart
More about urgent leak make-safe · All roof lantern repairs in Portstewart