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 Scottish Borders, 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
- Misting that comes and goes with the weather
- Water marks or tide lines inside the unit
What usually causes it?
Edge seal failure
Every sealed unit has an edge seal and desiccant. Once the seal fails, humid air gets in and the desiccant saturates.
Water sitting on the edge
If the unit's edge sits in water because the eaves don't drain, the seal fails sooner.
Roof lanterns in Scottish Borders
Snow and ice sitting at the eaves can block a lantern's drainage and push water back under the glass as it melts. If your lantern leaks after a thaw rather than after rain, tell us — it points to the eaves and kerb.
What should you expect to pay for misted glass unit replacement in Scottish Borders?
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 Scottish Borders: questions
How much does a misted lantern unit cost to replace?
Usually £245–£595 ex VAT per unit depending on size, glass spec and access, confirmed in writing before work starts.
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.
Which towns in Scottish Borders do you cover?
All of Scottish Borders, including Galashiels, Hawick, Jedburgh, Kelso, Peebles, Selkirk. Rural and remote addresses are covered by arrangement.
How do I get a price for misted glass unit replacement in Scottish Borders?
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 Scottish Borders
- Glazing bar and capping repairs in Scottish Borders
- Ridge and hip repairs in Scottish Borders
- Upstand and kerb repairs in Scottish Borders
- uPVC roof lantern repairs in Scottish Borders
- Orangery lantern repairs in Scottish Borders
- Commercial roof lantern repairs in Scottish Borders
Nearby areas
- Misted glass unit replacement in Edinburgh and the Lothians
- Misted glass unit replacement in Fife
- Misted glass unit replacement in Lanarkshire
- Misted glass unit replacement in Stirling and Falkirk
- Misted glass unit replacement in Dumfries and Galloway
More about misted glass unit replacement · All roof lantern repairs in Scottish Borders