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County Antrim · BT1

Glazing bar and capping repairs in Belfast

For glazing bar and capping repairs in Belfast, the job is simple to describe: we re-seat or replace lifted cappings, perished gaskets and loose glazing bar fixings. Photos first, a guide price back, then a written fixed price.

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In Belfast, 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
  • Water running down one glazing bar inside
  • End caps missing at the bottom of a bar

Why it happens

Gasket shrinkage

Rubber gaskets shrink back from the ends over time, leaving a gap at the ridge or eaves.

Damage

Ladders, window cleaning or someone stepping on a lantern can bend a capping or unclip it.

About Belfast and the BT1 area

Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.

Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.

Close by, we also cover Newtownabbey (4 miles), Holywood (5 miles), Lisburn (7 miles).

What should you expect to pay in Belfast?

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

Most glazing bar and capping repairs jobs come in between £165 and £395 ex VAT (£198–£474 including 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 Northern Ireland?

In Northern Ireland, 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 (Northern Ireland) 2012, so we set out the route in writing first. Listed buildings in Northern Ireland need listed building consent from the council for alterations; check with the council's planning service before changing a lantern on a listed property.

How does it work?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

Glazing bar and capping repairs in Belfast: questions

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.

Which places near Belfast do you cover?

As well as Belfast, we cover nearby Newtownabbey, Holywood, Lisburn, Newtownards and the rest of County Antrim.

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 Belfast

Glazing bar and capping repairs near Belfast

More about glazing bar and capping repairs · All roof lantern repairs in Belfast

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