Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos from Airdrie (ML6) and we'll tell you which it is — with the price agreed in writing before any work.

What you might be seeing
- Gasket rubber poking out, cracked or missing
- Water running down one glazing bar inside
- 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 Airdrie
Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.
Airdrie is around 7 miles from Hamilton, and both are within our Lanarkshire coverage.
Close by, we also cover Coatbridge (2 miles), Bellshill (4 miles), Motherwell (5 miles).
What should you expect to pay in Airdrie?
Guide price for glazing bar and capping repairs: £165–£395 ex VAT (£198–£474 inc 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 Scotland?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Scotland. Replacing the whole lantern or enlarging the opening is different and falls under the Building (Scotland) Regulations 2004; we confirm in writing which route applies before any replacement. Listed buildings in Scotland need listed building consent from the planning authority for alterations, with Historic Environment Scotland guidance; check before changing a lantern on a listed property.
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 Airdrie: questions
Can you repair a lantern someone else installed in Airdrie?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
Which places near Airdrie do you cover?
As well as Airdrie, we cover nearby Coatbridge, Bellshill, Motherwell, Cumbernauld and the rest of Lanarkshire.
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 Airdrie
- Misted glass unit replacement in Airdrie
- Cracked lantern glass replacement in Airdrie
- uPVC roof lantern repairs in Airdrie
- Opening vent and actuator repairs in Airdrie
- Leak investigation and inspection in Airdrie
- Commercial roof lantern repairs in Airdrie
Glazing bar and capping repairs near Airdrie
More about glazing bar and capping repairs · All roof lantern repairs in Airdrie