We carry out misted glass unit replacement in Barnstaple and across the EX31 area. 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.

What you might be seeing
- 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?
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 Barnstaple
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.
Barnstaple is around 34 miles from Exeter, and both are within our Devon coverage.
We also cover nearby Bideford (8 miles), Tiverton (28 miles), Exeter (34 miles).
Guide prices for misted glass unit replacement in Barnstaple
Most misted glass unit replacement jobs come in between £245 and £595 ex VAT (£294–£714 including 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 England?
Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. Listed buildings need listed building consent from the local council for alterations, and conservation areas can have extra controls; like-for-like repairs are treated differently from changes, so check with the council's conservation officer first.
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 Barnstaple: questions
How do I get a price for misted glass unit replacement in Barnstaple?
Send a few photos of the lantern and the problem, with your Barnstaple 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 Barnstaple do you cover?
As well as Barnstaple, we cover nearby Bideford, Tiverton, Exeter and the rest of Devon.
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.
Other lantern repairs in Barnstaple
- Glazing bar and capping repairs in Barnstaple
- Cracked lantern glass replacement in Barnstaple
- uPVC roof lantern repairs in Barnstaple
- Roof lantern respraying in Barnstaple
- Leak investigation and inspection in Barnstaple
- Cleaning and maintenance in Barnstaple
Misted glass unit replacement near Barnstaple
More about misted glass unit replacement · All roof lantern repairs in Barnstaple