Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets. Send photos from Larbert (FK5) and we'll tell you which it is — with the price agreed in writing before any work.

What you might be seeing
- Gasket rubber poking out, cracked or missing
- Water running down one glazing bar inside
- Rattling or whistling in wind
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 Larbert
Freeze-thaw cycles open up tired sealant and gaskets faster than mild weather does. A spring check after a hard winter catches most problems before they leak.
Larbert is around 8 miles from Stirling, and both are within our Stirling and Falkirk coverage.
Neighbouring places we cover include Falkirk (2 miles), Grangemouth (4 miles), Alloa (7 miles).
What should you expect to pay in Larbert?
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 Scotland?
In Scotland, 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 (Scotland) Regulations 2004, so we set out the route in writing first. Listed buildings in Scotland need listed building consent from the planning authority for alterations, with Historic Environment Scotland guidance; check 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 Larbert: questions
Do you cover Larbert?
Yes. We cover Larbert, including the FK5 postcode area, as part of Stirling and Falkirk. 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.
Which places near Larbert do you cover?
As well as Larbert, we cover nearby Falkirk, Grangemouth, Alloa, Stirling and the rest of Stirling and Falkirk.
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 Larbert
- Flat roof junction and flashing repairs in Larbert
- Roof lantern respraying in Larbert
- Flat rooflight and skylight repairs in Larbert
- Leak investigation and inspection in Larbert
- Roof lantern replacement in Larbert
- Orangery lantern repairs in Larbert
Glazing bar and capping repairs near Larbert
More about glazing bar and capping repairs · All roof lantern repairs in Larbert