Glazing bar and capping repairs in Sunbury-on-Thames

In Sunbury-on-Thames, 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.

Roof lantern glazing bar with the top capping lifted to show the gasket beneath

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

Common causes we find

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.

Covering Sunbury-on-Thames and nearby

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.

Sunbury-on-Thames is around 13 miles from Guildford, and both are within our Surrey coverage.

If you're just outside Sunbury-on-Thames, we also cover Walton-on-Thames (1 mile), Hampton (2 miles), Hanworth (3 miles).

How much should it cost?

Guide price, per lantern£165–£395 ex VAT£198–£474 inc VAT

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 Sunbury-on-Thames: questions

Can you repair a lantern someone else installed in Sunbury-on-Thames?

Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.

Which places near Sunbury-on-Thames do you cover?

As well as Sunbury-on-Thames, we cover nearby Walton-on-Thames, Hampton, Hanworth, Ashford, Surrey and the rest of Surrey.

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.

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 Sunbury-on-Thames

Glazing bar and capping repairs near Sunbury-on-Thames

More about glazing bar and capping repairs · All roof lantern repairs in Sunbury-on-Thames