Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos from Mitcham (CR4) 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
- A capping visibly higher than its neighbours
- Rattling or whistling in wind
- End caps missing at the bottom of a bar
Why it happens
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 Mitcham and the CR4 area
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
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.
From Westminster to Mitcham is roughly 7 miles — all part of the Greater London area we cover.
Close by, we also cover Morden (1 mile), Wimbledon (2 miles), Streatham (2 miles).
What should you expect to pay in Mitcham?
Typical range: £165–£395 ex VAT, which is £198–£474 with 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?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. 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 Mitcham: questions
How do I get a price for glazing bar and capping repairs in Mitcham?
Send a few photos of the lantern and the problem, with your Mitcham postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Do you need to visit to price glazing bar and capping repairs?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
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 Mitcham
- Misted glass unit replacement in Mitcham
- Slipped glass panel repairs in Mitcham
- Aluminium roof lantern repairs in Mitcham
- Cleaning and maintenance in Mitcham
- Orangery lantern repairs in Mitcham
- Commercial roof lantern repairs in Mitcham
Glazing bar and capping repairs near Mitcham
More about glazing bar and capping repairs · All roof lantern repairs in Mitcham