Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos from Canary Wharf (E14) 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
- Water running down one glazing bar inside
- Rattling or whistling in wind
- End caps missing at the bottom of a bar
What usually causes it?
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.
Roof lanterns in Canary Wharf
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.
Canary Wharf is around 5 miles from Westminster, and both are within our Greater London coverage.
Neighbouring places we cover include Bow (1 mile), Canning Town (2 miles), Greenwich (2 miles).
Guide prices for glazing bar and capping repairs in Canary Wharf
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?
In England, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations 2010, so we set out the route in writing first. 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 Canary Wharf: questions
Do you cover Canary Wharf?
Yes. We cover Canary Wharf, including the E14 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 Canary Wharf?
Send a few photos of the lantern and the problem, with your Canary Wharf postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
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 Canary Wharf
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- Cleaning and maintenance in Canary Wharf
Glazing bar and capping repairs near Canary Wharf
More about glazing bar and capping repairs · All roof lantern repairs in Canary Wharf