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 Hampshire, 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
- A capping visibly higher than its neighbours
- Gasket rubber poking out, cracked or missing
- Rattling or whistling in wind
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 Hampshire
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.
- Southampton
- Portsmouth
- Basingstoke
- Gosport
- Waterlooville
- Farnborough
- Eastleigh
- Winchester
- Havant
- Andover
- Fareham
- Aldershot
- Fleet
- Totton
- New Milton
- Bordon
- Hythe
- Yateley
What should you expect to pay for glazing bar and capping repairs in Hampshire?
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?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. 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 Hampshire: questions
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.
Which towns in Hampshire do you cover?
All of Hampshire, including Southampton, Portsmouth, Basingstoke, Gosport, Waterlooville, Farnborough. Rural and remote addresses are covered by arrangement.
How do I get a price for glazing bar and capping repairs in Hampshire?
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 Hampshire
- Eaves beam and gutter repairs in Hampshire
- Slipped glass panel repairs in Hampshire
- Condensation diagnosis and fixes in Hampshire
- Opening vent and actuator repairs in Hampshire
- Cleaning and maintenance in Hampshire
- Roof lantern replacement in Hampshire
Nearby areas
- Glazing bar and capping repairs in Isle of Wight
- Glazing bar and capping repairs in Berkshire
- Glazing bar and capping repairs in West Sussex
- Glazing bar and capping repairs in Surrey
- Glazing bar and capping repairs in Wiltshire
More about glazing bar and capping repairs · All roof lantern repairs in Hampshire