We carry out misted glass unit replacement in Sandhurst and across the GU47 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
- Misting that comes and goes with the weather
- Water marks or tide lines inside the unit
Why it happens
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 Sandhurst
Most inland lantern leaks aren't storm damage; they're usually tired sealant, a lifted capping or blocked eaves drainage. All three are quick to find and fix once you know where to look.
Sandhurst is around 11 miles from Reading, and both are within our Berkshire coverage.
Close by, we also cover Crowthorne (2 miles), Yateley (2 miles), Camberley (2 miles).
How much should it cost?
Guide price for misted glass unit replacement: £245–£595 ex VAT (£294–£714 inc 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?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. 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 Sandhurst: questions
Can you repair a lantern someone else installed in Sandhurst?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
Which places near Sandhurst do you cover?
As well as Sandhurst, we cover nearby Crowthorne, Yateley, Camberley, Farnborough and the rest of Berkshire.
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 Sandhurst
- Slipped glass panel repairs in Sandhurst
- Condensation diagnosis and fixes in Sandhurst
- Aluminium roof lantern repairs in Sandhurst
- Flat rooflight and skylight repairs in Sandhurst
- Orangery lantern repairs in Sandhurst
- Commercial roof lantern repairs in Sandhurst
Misted glass unit replacement near Sandhurst
More about misted glass unit replacement · All roof lantern repairs in Sandhurst