A cracked pane in a roof lantern needs prompt attention because the glass is overhead. We carry out cracked lantern glass replacement across West Sussex, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need cracked lantern glass replacement
- A visible crack in the outer or inner pane
- A starburst from an impact point
- A crack running from an edge (often thermal stress)
What usually causes it?
Thermal stress
Uneven heating across a pane, edge damage or partial shading can crack glass from the edge.
Spontaneous breakage
Toughened glass can occasionally break without warning, which is why laminated inner panes are recommended overhead.
Roof lanterns in West Sussex
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
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 cracked lantern glass replacement in West Sussex?
Guide price for cracked lantern glass replacement: £295–£795 ex VAT (£354–£954 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.
Cracked lantern glass replacement in West Sussex: questions
Is it covered by home insurance?
Accidental damage often is; check your policy. We can provide a written quote and photos for your insurer.
Why did my glass crack on a sunny day?
Thermal stress — one part of the pane heats faster than another, often where it's shaded or chipped at the edge.
Which towns in West Sussex do you cover?
All of West Sussex, including Chichester, Crawley, Worthing, Bognor Regis, Littlehampton, Horsham. Rural and remote addresses are covered by arrangement.
How do I get a price for cracked lantern glass replacement in West 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 West Sussex
- Roof lantern resealing in West Sussex
- Glazing bar and capping repairs in West Sussex
- Misted glass unit replacement in West Sussex
- Flat rooflight and skylight repairs in West Sussex
- Leak investigation and inspection in West Sussex
- Roof lantern replacement in West Sussex
Nearby areas
- Cracked lantern glass replacement in East Sussex
- Cracked lantern glass replacement in Surrey
- Cracked lantern glass replacement in Hampshire
- Cracked lantern glass replacement in Greater London
- Cracked lantern glass replacement in Berkshire
More about cracked lantern glass replacement · All roof lantern repairs in West Sussex