In Catford, as everywhere, a slipped panel is a glass unit that has slid down its glazing bars, leaving a gap at the top and often pushing past the eaves at the bottom. Send photos and we'll tell you what we think has failed.

What you might be seeing
- Glass edge overhanging the eaves more than its neighbours
- A leak at the top of one pane only
- A pane that looks out of line with the others
What usually causes it?
Missing setting blocks
Blocks under the bottom edge carry the weight of the unit; if they're missing or crushed, the unit creeps down.
Failed glass stops
Many systems use an end stop at the eaves. If it's missing or broken, nothing holds the glass in place.
Covering Catford and nearby
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.
London's extensions are often tight to neighbouring walls and roofs. Where a repair needs access over a neighbour's property, we'll tell you in advance so you can arrange it.
Catford is around 6 miles from Westminster, and both are within our Greater London coverage.
Close by, we also cover Blackheath (2 miles), Greenwich (2 miles), Beckenham (3 miles).
Guide prices for slipped glass panel repairs in Catford
Typical range: £195–£445 ex VAT, which is £234–£534 with VAT, per panel. 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.
Slipped glass panel repairs in Catford: questions
How do I get a price for slipped glass panel repairs 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.
Which places near Catford do you cover?
As well as Catford, we cover nearby Blackheath, Greenwich, Beckenham, Peckham and the rest of Greater London.
What does resetting a slipped panel cost?
Usually £195–£445 ex VAT per panel, confirmed in writing before work starts. If the unit is damaged it may need replacing.
Does a slipped panel mean my lantern was badly fitted?
Not necessarily — blocks can crush and stops can break over time — but if the lantern is new, talk to the installer first as it may be under warranty.
Other lantern repairs in Catford
- Roof lantern resealing in Catford
- Eaves beam and gutter repairs in Catford
- Flat rooflight and skylight repairs in Catford
- Urgent leak make-safe in Catford
- Roof lantern replacement in Catford
- Commercial roof lantern repairs in Catford
Slipped glass panel repairs near Catford
More about slipped glass panel repairs · All roof lantern repairs in Catford