We carry out slipped glass panel repairs in Farnham and across the GU9 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
Failed glass stops
Many systems use an end stop at the eaves. If it's missing or broken, nothing holds the glass in place.
Loose cappings
If the capping no longer clamps the glass firmly, the unit can creep with thermal movement.
About Farnham and the GU9 area
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.
We cover Farnham as part of Surrey, about 10 miles from Guildford.
Close by, we also cover Aldershot (3 miles), Fleet (5 miles), Farnborough (6 miles).
Guide prices for slipped glass panel repairs in Farnham
Guide price for slipped glass panel repairs: £195–£445 ex VAT (£234–£534 inc 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?
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.
Slipped glass panel repairs in Farnham: questions
Can you repair a lantern someone else installed in Farnham?
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 Farnham do you cover?
As well as Farnham, we cover nearby Aldershot, Fleet, Farnborough, Bordon and the rest of Surrey.
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 Farnham
- Flat roof junction and flashing repairs in Farnham
- Cracked lantern glass replacement in Farnham
- Solar control and self-cleaning glass upgrades in Farnham
- Condensation diagnosis and fixes in Farnham
- Urgent leak make-safe in Farnham
- Commercial roof lantern repairs in Farnham
Slipped glass panel repairs near Farnham
More about slipped glass panel repairs · All roof lantern repairs in Farnham