We carry out slipped glass panel repairs in Windsor and across the SL4 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
- A leak at the top of one pane only
- A pane that looks out of line with the others
Why it happens
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.
Covering Windsor and nearby
Most inland lantern leaks aren't storm damage; they're usually tired sealant, a lifted capping or blocked eaves drainage. All three are quick to find and fix once you know where to look.
We cover Windsor as part of Berkshire, about 16 miles from Reading.
If you're just outside Windsor, we also cover Slough (2 miles), Egham (4 miles), Staines (5 miles).
How much should it cost?
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?
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 Windsor: questions
How do I get a price for slipped glass panel repairs in Windsor?
Send a few photos of the lantern and the problem, with your Windsor postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Do you need to visit to price slipped glass panel repairs?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
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 Windsor
- Eaves beam and gutter repairs in Windsor
- Flat roof junction and flashing repairs in Windsor
- Cracked lantern glass replacement in Windsor
- uPVC roof lantern repairs in Windsor
- Roof lantern replacement in Windsor
- Commercial roof lantern repairs in Windsor
Slipped glass panel repairs near Windsor
More about slipped glass panel repairs · All roof lantern repairs in Windsor