Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. We carry out condensation diagnosis and fixes across Ayrshire, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need condensation diagnosis and fixes
- Water on the inside of the glass on cold mornings, even without rain
- Black mould at the base of the lantern lining
- Wet window sills elsewhere in the house too
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.
Roof lanterns in Ayrshire
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.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
What should you expect to pay for condensation diagnosis and fixes in Ayrshire?
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 Scotland?
Most lantern repairs in Scotland need no approval at all. Where a job turns into a replacement, the Building (Scotland) Regulations 2004 apply and we confirm how the work will be signed off before we start. Listed buildings in Scotland need listed building consent from the planning authority for alterations, with Historic Environment Scotland guidance; check 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 Ayrshire: questions
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.
Which towns in Ayrshire do you cover?
All of Ayrshire, including Kilmarnock, Ayr, Irvine, Kilwinning, Largs, Prestwick. Rural and remote addresses are covered by arrangement.
How do I get a price for condensation diagnosis and fixes in Ayrshire?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in Ayrshire
- Roof lantern resealing in Ayrshire
- Glazing bar and capping repairs in Ayrshire
- Flat roof junction and flashing repairs in Ayrshire
- Aluminium roof lantern repairs in Ayrshire
- uPVC roof lantern repairs in Ayrshire
- Orangery lantern repairs in Ayrshire
Nearby areas
- Condensation diagnosis and fixes in Glasgow and Clyde
- Condensation diagnosis and fixes in Lanarkshire
- Condensation diagnosis and fixes in Argyll and Bute
- Condensation diagnosis and fixes in Stirling and Falkirk
- Condensation diagnosis and fixes in Dumfries and Galloway
More about condensation diagnosis and fixes · All roof lantern repairs in Ayrshire