We carry out glazing bar and capping repairs in Redhill and across the RH1 area. Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets.

What you might be seeing
- Gasket rubber poking out, cracked or missing
- Rattling or whistling in wind
- End caps missing at the bottom of a bar
What usually causes it?
Gasket shrinkage
Rubber gaskets shrink back from the ends over time, leaving a gap at the ridge or eaves.
Fixings working loose
Screws and clips that hold the capping relax with thermal movement, so the clamp on the glass weakens.
Covering Redhill 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.
From Guildford to Redhill is roughly 17 miles — all part of the Surrey area we cover.
We also cover nearby Reigate (2 miles), Horley (5 miles), Caterham (5 miles).
Guide prices for glazing bar and capping repairs in Redhill
Typical range: £165–£395 ex VAT, which is £198–£474 with VAT, per lantern. 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.
Glazing bar and capping repairs in Redhill: questions
Do you need to visit to price glazing bar and capping 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.
Which places near Redhill do you cover?
As well as Redhill, we cover nearby Reigate, Horley, Caterham, Coulsdon and the rest of Surrey.
Can a capping just be clipped back on?
Sometimes, if nothing underneath has failed. We check the gaskets first, because clipping a capping over a perished gasket doesn't stop the leak.
Do you repair uPVC and timber lantern bars too?
Yes. Timber lanterns use different beads and cappings, and we repair those as part of timber lantern repairs.
Other lantern repairs in Redhill
- Roof lantern leak repairs in Redhill
- Roof lantern resealing in Redhill
- Slipped glass panel repairs in Redhill
- Condensation diagnosis and fixes in Redhill
- Timber roof lantern repairs in Redhill
- Flat rooflight and skylight repairs in Redhill
Glazing bar and capping repairs near Redhill
More about glazing bar and capping repairs · All roof lantern repairs in Redhill