In Strabane, as everywhere, condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. Send photos and we'll tell you what we think has failed.

What you might be seeing
- Water on the inside of the glass on cold mornings, even without rain
- Drips after cooking, showers or drying clothes
- Black mould at the base of the lantern lining
What usually causes it?
Cold surfaces
Older glass, uninsulated kerbs and un-thermally-broken frames stay cold and collect condensation.
Poor ventilation
Without trickle vents, extraction or an opening vent, moist air has nowhere to go.
Covering Strabane 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.
We cover Strabane as part of County Tyrone, about 17 miles from Omagh.
Close by, we also cover Derry~Londonderry (14 miles), Omagh (17 miles), Limavady (26 miles).
How much should it cost?
Most condensation diagnosis and fixes jobs come in between £145 and £495 ex VAT (£174–£594 including 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?
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.
Condensation diagnosis and fixes in Strabane: questions
How do I get a price for condensation diagnosis and fixes in Strabane?
Send a few photos of the lantern and the problem, with your Strabane postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Strabane do you cover?
As well as Strabane, we cover nearby Derry~Londonderry, Omagh, Limavady, Cookstown and the rest of County Tyrone.
Will new glass stop condensation?
Better glass raises the inner surface temperature and helps, but if the room is very humid, ventilation matters more. We'll tell you which will make the bigger difference.
Is condensation in a lantern normal?
Occasional light condensation on very cold mornings can be. Regular dripping isn't, and can damage linings and cause mould.
Other lantern repairs in Strabane
- Ridge and hip repairs in Strabane
- Upstand and kerb repairs in Strabane
- Slipped glass panel repairs in Strabane
- Timber roof lantern repairs in Strabane
- Flat rooflight and skylight repairs in Strabane
- Orangery lantern repairs in Strabane
Condensation diagnosis and fixes near Strabane
More about condensation diagnosis and fixes · All roof lantern repairs in Strabane