We carry out glazing bar and capping repairs in Brecon and across the LD3 area. Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets.
Is it time for 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
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 Brecon and the LD3 area
Western and upland parts of the UK get more rain and more wind-driven rain than the east, and that's what finds weak cappings and blocked eaves first. Lanterns here benefit from a check of the bars on the most exposed face and a clear eaves channel before winter.
We cover Brecon as part of Powys, about 40 miles from Newtown.
If you're just outside Brecon, we also cover Tredegar (13 miles), Merthyr Tydfil (14 miles), Ebbw Vale (14 miles).
What should you expect to pay in Brecon?
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 Wales?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Wales. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010 (as applied in Wales); we confirm in writing which route applies before any replacement. Listed buildings in Wales need listed building consent from the local planning authority for alterations, with Cadw guidance on historic buildings; check with the council 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 Brecon: questions
How do I get a price for glazing bar and capping repairs in Brecon?
Send a few photos of the lantern and the problem, with your Brecon 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 Brecon do you cover?
As well as Brecon, we cover nearby Tredegar, Merthyr Tydfil, Ebbw Vale, Aberdare and the rest of Powys.
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.
Other lantern repairs in Brecon
- Misted glass unit replacement in Brecon
- Solar control and self-cleaning glass upgrades in Brecon
- Aluminium roof lantern repairs in Brecon
- Roof lantern respraying in Brecon
- Flat rooflight and skylight repairs in Brecon
- Leak investigation and inspection in Brecon
Glazing bar and capping repairs near Brecon
More about glazing bar and capping repairs · All roof lantern repairs in Brecon