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 East Sussex, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need misted glass unit replacement
- One pane looks hazier than the others
- Misting that comes and goes with the weather
- Water marks or tide lines inside the unit
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 East Sussex
Sun and UV do more damage than rain on many lanterns here: brittle ridge caps, chalky finishes and hardened gaskets. They're cheap to replace before they let water in.
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 East Sussex?
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?
In England, 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 Regulations 2010, so we set out the route in writing first. 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 East Sussex: 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.
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 East Sussex do you cover?
All of East Sussex, including Brighton, Eastbourne, Hastings, Hove, Bexhill-on-Sea, Hailsham. Rural and remote addresses are covered by arrangement.
How do I get a price for misted glass unit replacement in East Sussex?
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 East Sussex
- Roof lantern leak repairs in East Sussex
- Eaves beam and gutter repairs in East Sussex
- Flat roof junction and flashing repairs in East Sussex
- Timber roof lantern repairs in East Sussex
- Aluminium roof lantern repairs in East Sussex
- Orangery lantern repairs in East Sussex
Nearby areas
- Misted glass unit replacement in West Sussex
- Misted glass unit replacement in Kent
- Misted glass unit replacement in Surrey
- Misted glass unit replacement in Greater London
- Misted glass unit replacement in Essex
More about misted glass unit replacement · All roof lantern repairs in East Sussex