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South Glamorgan · CF61

Aluminium roof lantern repairs in Llantwit Major

We cover Llantwit Major and the wider South Glamorgan area for aluminium roof lantern repairs. In short, we replace worn gaskets, cappings, end caps and fixings and touch in the finish on aluminium lanterns — and you know the price before any work begins.

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In Llantwit Major, as everywhere, aluminium lanterns are strong and slim, but they still rely on gaskets, cappings and seals that wear. Send photos and we'll tell you what we think has failed.

Slim-profile anthracite grey aluminium roof lantern on a modern flat roof extension

Signs you need aluminium roof lantern repairs

  • Cappings lifted or rattling
  • Chalky or chipped powder coat
  • Corrosion at cut edges or fixings in coastal areas

Common causes we find

Worn gaskets

Gaskets do the weatherproofing; they harden and shrink with age.

Finish damage

Scratches and chips expose bare metal; coastal air speeds up corrosion.

Roof lanterns in Llantwit Major

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.

From Cardiff to Llantwit Major is roughly 14 miles — all part of the South Glamorgan area we cover.

Neighbouring places we cover include Cowbridge (4 miles), Bridgend (8 miles), Barry (9 miles).

How much should it cost?

Guide price, per lantern£195–£695 ex VAT£234–£834 inc VAT

Guide price for aluminium roof lantern repairs: £195–£695 ex VAT (£234–£834 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?

In Wales, 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 2010 (as applied in Wales), so we set out the route in writing first. 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.

Aluminium roof lantern repairs in Llantwit Major: questions

Can you repair a lantern someone else installed in Llantwit Major?

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 Llantwit Major do you cover?

As well as Llantwit Major, we cover nearby Cowbridge, Bridgend, Barry, Porthcawl and the rest of South Glamorgan.

What do aluminium lantern repairs cost?

Most component repairs are £195–£695 ex VAT per lantern, confirmed in writing before work starts.

My lantern brand is unknown — can you still help?

Usually. Many systems share common parts, and where they don't we adapt the detail.

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