A cracked pane in a roof lantern needs prompt attention because the glass is overhead. Send photos from Catford (SE6) 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
What usually causes it?
Impact
Hail, falling branches or dropped tools.
Spontaneous breakage
Toughened glass can occasionally break without warning, which is why laminated inner panes are recommended overhead.
Roof lanterns in Catford
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.
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.
From Westminster to Catford is roughly 6 miles — all part of the Greater London area we cover.
We also cover nearby Blackheath (2 miles), Greenwich (2 miles), Beckenham (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?
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.
Cracked lantern glass replacement in Catford: questions
Do you cover Catford?
Yes. We cover Catford, including the SE6 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 Catford?
Send a few photos of the lantern and the problem, with your Catford 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 Catford
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- Eaves beam and gutter repairs in Catford
- Timber roof lantern repairs in Catford
- Opening vent and actuator repairs in Catford
- Orangery lantern repairs in Catford
- Commercial roof lantern repairs in Catford
Cracked lantern glass replacement near Catford
More about cracked lantern glass replacement · All roof lantern repairs in Catford