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South Glamorgan · CF10

Aluminium roof lantern repairs in Cardiff

If you're in Cardiff and dealing with wear on an aluminium lantern, we can help. We replace worn gaskets, cappings, end caps and fixings and touch in the finish on aluminium lanterns, and confirm the fixed price in writing before we start.

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In Cardiff, 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

What you might be seeing

  • Leaks at bars or ridge
  • Chalky or chipped powder coat
  • Misted units

What usually causes it?

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.

Covering Cardiff and nearby

Western and upland parts of the UK get more rain and more wind-driven rain than the east, and that's what finds weak cappings and blocked eaves first. Lanterns here benefit from a check of the bars on the most exposed face and a clear eaves channel before winter.

Close by, we also cover Penarth (3 miles), Caerphilly (7 miles), Barry (7 miles).

What should you expect to pay in Cardiff?

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?

Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Wales. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010 (as applied in Wales); we confirm in writing which route applies before any replacement. 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 Cardiff: questions

Do you cover Cardiff?

Yes. We cover Cardiff, including the CF10 postcode area, as part of South Glamorgan. 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 Cardiff do you cover?

As well as Cardiff, we cover nearby Penarth, Caerphilly, Barry, Risca 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.

Can you repaint an aluminium lantern?

Yes — see roof lantern respraying for on-site spray finishes.

Other lantern repairs in Cardiff

Aluminium roof lantern repairs near Cardiff

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