In Antrim, as everywhere, each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos and we'll tell you what we think has failed.
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
Why it happens
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.
About Antrim and the BT41 area
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.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
From Belfast to Antrim is roughly 13 miles — all part of the County Antrim area we cover.
Close by, we also cover Ballymena (12 miles), Newtownabbey (12 miles), Belfast (13 miles).
How much should it cost?
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 Northern Ireland?
Most lantern repairs in Northern Ireland need no approval at all. Where a job turns into a replacement, the Building Regulations (Northern Ireland) 2012 apply and we confirm how the work will be signed off before we start. Listed buildings in Northern Ireland need listed building consent from the council for alterations; check with the council's planning service 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 Antrim: questions
How do I get a price for glazing bar and capping repairs in Antrim?
Send a few photos of the lantern and the problem, with your Antrim 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 Antrim do you cover?
As well as Antrim, we cover nearby Ballymena, Newtownabbey, Belfast, Lisburn and the rest of County Antrim.
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 Antrim
- Misted glass unit replacement in Antrim
- Condensation diagnosis and fixes in Antrim
- Aluminium roof lantern repairs in Antrim
- Opening vent and actuator repairs in Antrim
- Urgent leak make-safe in Antrim
- Roof lantern replacement in Antrim
Glazing bar and capping repairs near Antrim
More about glazing bar and capping repairs · All roof lantern repairs in Antrim