Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. We carry out glazing bar and capping repairs across Surrey, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need glazing bar and capping repairs
- 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.
Damage
Ladders, window cleaning or someone stepping on a lantern can bend a capping or unclip it.
Roof lanterns in Surrey
Drier, sunnier parts of the UK are kinder to seals than the wet west, but strong sun ages sealant, gaskets and plastic end caps, and south- or west-facing lanterns can make rooms very warm. Solar control glass and an opening vent help.
- Guildford
- Woking
- Esher
- Redhill
- Staines
- Banstead
- Leatherhead
- Ewell
- Farnham
- Epsom
- Camberley
- Egham
- Sunbury-on-Thames
- Ashford, Surrey
- Walton-on-Thames
- Godalming
- Reigate
- Horley
- Caterham
What should you expect to pay for glazing bar and capping repairs in Surrey?
Most glazing bar and capping repairs jobs come in between £165 and £395 ex VAT (£198–£474 including 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 Surrey: questions
How much do capping and gasket repairs cost?
Usually £165–£395 ex VAT per lantern depending on how many bars are affected, confirmed in writing before work starts.
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.
Which towns in Surrey do you cover?
All of Surrey, including Guildford, Woking, Esher, Redhill, Staines, Banstead. Rural and remote addresses are covered by arrangement.
How do I get a price for glazing bar and capping repairs in Surrey?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in Surrey
- Roof lantern leak repairs in Surrey
- Flat roof junction and flashing repairs in Surrey
- Slipped glass panel repairs in Surrey
- Aluminium roof lantern repairs in Surrey
- Roof lantern replacement in Surrey
- Commercial roof lantern repairs in Surrey
Nearby areas
- Glazing bar and capping repairs in Greater London
- Glazing bar and capping repairs in Berkshire
- Glazing bar and capping repairs in West Sussex
- Glazing bar and capping repairs in Hertfordshire
- Glazing bar and capping repairs in Buckinghamshire
More about glazing bar and capping repairs · All roof lantern repairs in Surrey