If a roof lantern pane looks cloudy or wet between the two layers of glass, the sealed unit has failed and moisture has got inside. We carry out misted glass unit replacement across Argyll and Bute, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need misted glass unit replacement
- Fog, droplets or white bloom between the panes
- One pane looks hazier than the others
- Misting that comes and goes with the weather
What usually causes it?
Water sitting on the edge
If the unit's edge sits in water because the eaves don't drain, the seal fails sooner.
Movement and age
Thermal movement and age wear the seal; units at the bottom of the lantern often go first.
Roof lanterns in Argyll and Bute
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.
What should you expect to pay for misted glass unit replacement in Argyll and Bute?
Typical range: £245–£595 ex VAT, which is £294–£714 with VAT, per glass unit. 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?
In Scotland, 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 (Scotland) Regulations 2004, so we set out the route in writing first. 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.
Misted glass unit replacement in Argyll and Bute: questions
How long does a replacement unit take?
Units are made to measure, so there's a lead time between measuring and fitting. Fitting itself is usually a short visit.
Will the new pane match the others?
We match tint and coatings as closely as possible; a new unit can look very slightly clearer than older neighbours.
Which towns in Argyll and Bute do you cover?
All of Argyll and Bute, including Oban, Campbeltown, Dunoon, Helensburgh, Lochgilphead, Rothesay. Rural and remote addresses are covered by arrangement.
How do I get a price for misted glass unit replacement in Argyll and Bute?
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 Argyll and Bute
- Roof lantern resealing in Argyll and Bute
- Ridge and hip repairs in Argyll and Bute
- Eaves beam and gutter repairs in Argyll and Bute
- Timber roof lantern repairs in Argyll and Bute
- Roof lantern respraying in Argyll and Bute
- Orangery lantern repairs in Argyll and Bute
Nearby areas
- Misted glass unit replacement in Ayrshire
- Misted glass unit replacement in Glasgow and Clyde
- Misted glass unit replacement in Lanarkshire
- Misted glass unit replacement in Stirling and Falkirk
- Misted glass unit replacement in Perth and Kinross
More about misted glass unit replacement · All roof lantern repairs in Argyll and Bute