Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos from Havant (PO9) and we'll tell you which it is — with the price agreed in writing before any work.

Signs you need glazing bar and capping repairs
- A capping visibly higher than its neighbours
- Gasket rubber poking out, cracked or missing
- End caps missing at the bottom of a bar
Common causes we find
Fixings working loose
Screws and clips that hold the capping relax with thermal movement, so the clamp on the glass weakens.
Damage
Ladders, window cleaning or someone stepping on a lantern can bend a capping or unclip it.
Roof lanterns in Havant
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
Havant is around 19 miles from Southampton, and both are within our Hampshire coverage.
We also cover nearby Waterlooville (3 miles), Portsmouth (6 miles), Gosport (8 miles).
How much should it cost?
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 Havant: questions
How do I get a price for glazing bar and capping repairs in Havant?
Send a few photos of the lantern and the problem, with your Havant postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Havant do you cover?
As well as Havant, we cover nearby Waterlooville, Portsmouth, Gosport, Fareham and the rest of Hampshire.
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.
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 Havant
- Roof lantern leak repairs in Havant
- Roof lantern resealing in Havant
- Eaves beam and gutter repairs in Havant
- Flat roof junction and flashing repairs in Havant
- Slipped glass panel repairs in Havant
- Opening vent and actuator repairs in Havant
Glazing bar and capping repairs near Havant
More about glazing bar and capping repairs · All roof lantern repairs in Havant