We carry out slipped glass panel repairs in Feltham and across the TW13 area. 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.

What you might be seeing
- A visible gap under the capping at the top of a pane
- Glass edge overhanging the eaves more than its neighbours
- A leak at the top of one pane only
Common causes we find
Missing setting blocks
Blocks under the bottom edge carry the weight of the unit; if they're missing or crushed, the unit creeps down.
Loose cappings
If the capping no longer clamps the glass firmly, the unit can creep with thermal movement.
Covering Feltham and nearby
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.
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.
Feltham is around 12 miles from Westminster, and both are within our Greater London coverage.
Close by, we also cover Hanworth (2 miles), Ashford, Surrey (2 miles), Hounslow (3 miles).
How much should it cost?
Most slipped glass panel repairs jobs come in between £195 and £445 ex VAT (£234–£534 including 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?
Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. 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 Feltham: questions
Can you repair a lantern someone else installed in Feltham?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
Which places near Feltham do you cover?
As well as Feltham, we cover nearby Hanworth, Ashford, Surrey, Hounslow, Sunbury-on-Thames 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.
Can a slipped panel be pushed back up?
Not safely without removing the capping. The fix is to support the unit properly so it can't slip again.
Other lantern repairs in Feltham
- Glazing bar and capping repairs in Feltham
- Eaves beam and gutter repairs in Feltham
- Flat roof junction and flashing repairs in Feltham
- Misted glass unit replacement in Feltham
- Aluminium roof lantern repairs in Feltham
- Orangery lantern repairs in Feltham
Slipped glass panel repairs near Feltham
More about slipped glass panel repairs · All roof lantern repairs in Feltham