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Mid Glamorgan · CF47

Glazing bar and capping repairs in Merthyr Tydfil

We cover Merthyr Tydfil and the wider Mid Glamorgan area for glazing bar and capping repairs. In short, we re-seat or replace lifted cappings, perished gaskets and loose glazing bar fixings — and you know the price before any work begins.

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We carry out glazing bar and capping repairs in Merthyr Tydfil and across the CF47 area. Each glazing bar on a roof lantern has a top capping that clamps the glass onto gaskets.

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

Is it time for glazing bar and capping repairs?

  • Gasket rubber poking out, cracked or missing
  • Water running down one glazing bar inside
  • 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 Merthyr Tydfil and nearby

Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.

We cover Merthyr Tydfil as part of Mid Glamorgan, about 19 miles from Bridgend.

Neighbouring places we cover include Aberdare (4 miles), Tredegar (6 miles), Rhondda (7 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 Wales?

Most lantern repairs in Wales need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 (as applied in Wales) apply and we confirm how the work will be signed off before we start. Listed buildings in Wales need listed building consent from the local planning authority for alterations, with Cadw guidance on historic buildings; check with the council 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 Merthyr Tydfil: questions

Can you repair a lantern someone else installed in Merthyr Tydfil?

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 Merthyr Tydfil do you cover?

As well as Merthyr Tydfil, we cover nearby Aberdare, Tredegar, Rhondda, Ebbw Vale and the rest of Mid Glamorgan.

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.

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 Merthyr Tydfil

Glazing bar and capping repairs near Merthyr Tydfil

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

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