A cracked pane in a roof lantern needs prompt attention because the glass is overhead. Send photos from Bexley (DA5) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- A visible crack in the outer or inner pane
- A starburst from an impact point
- Broken glass inside the room — keep everyone out of the area
Common causes we find
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.
Covering Bexley and nearby
Drier, sunnier parts of the UK are kinder to seals than the wet west, but strong sun ages sealant, gaskets and plastic end caps, and south- or west-facing lanterns can make rooms very warm. Solar control glass and an opening vent help.
Across London, many lanterns sit on rear extensions with access only through the house, so we protect floors and plan the work to keep time indoors to a minimum. Parking and any permits are factored into the quote.
We cover Bexley as part of Greater London, about 13 miles from Westminster.
If you're just outside Bexley, we also cover Welling (2 miles), Dartford (3 miles), Swanley (3 miles).
How much should it cost?
Most cracked lantern glass replacement jobs come in between £295 and £795 ex VAT (£354–£954 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?
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 Bexley: questions
Do you cover Bexley?
Yes. We cover Bexley, including the DA5 postcode area, as part of Greater London. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
How do I get a price for cracked lantern glass replacement in Bexley?
Send a few photos of the lantern and the problem, with your Bexley postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
What does replacing cracked lantern glass cost?
Usually £295–£795 ex VAT per unit depending on size, spec and access, confirmed in writing before work starts.
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.
Other lantern repairs in Bexley
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- Condensation diagnosis and fixes in Bexley
- Timber roof lantern repairs in Bexley
- Roof lantern respraying in Bexley
- Cleaning and maintenance in Bexley
- Commercial roof lantern repairs in Bexley
Cracked lantern glass replacement near Bexley
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