Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos from Edmonton (N18) 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
- Gasket rubber poking out, cracked or missing
- Water running down one glazing bar inside
- Rattling or whistling in wind
What usually causes it?
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.
About Edmonton and the N18 area
Sun and UV do more damage than rain on many lanterns here: brittle ridge caps, chalky finishes and hardened gaskets. They're cheap to replace before they let water in.
Across London, many lanterns sit on rear extensions with access only through the house, so we protect floors and plan the work to keep time indoors to a minimum. Parking and any permits are factored into the quote.
We cover Edmonton as part of Greater London, about 9 miles from Westminster.
If you're just outside Edmonton, we also cover Tottenham (2 miles), Enfield (2 miles), Chingford (3 miles).
What should you expect to pay in Edmonton?
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 England?
Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. 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 Edmonton: questions
Do you cover Edmonton?
Yes. We cover Edmonton, including the N18 postcode area, as part of Greater London. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
How do I get a price for glazing bar and capping repairs in Edmonton?
Send a few photos of the lantern and the problem, with your Edmonton postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
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 Edmonton
- Roof lantern leak repairs in Edmonton
- Ridge and hip repairs in Edmonton
- Misted glass unit replacement in Edmonton
- Leak investigation and inspection in Edmonton
- Cleaning and maintenance in Edmonton
- Commercial roof lantern repairs in Edmonton
Glazing bar and capping repairs near Edmonton
More about glazing bar and capping repairs · All roof lantern repairs in Edmonton