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South Glamorgan · CF10

uPVC roof lantern repairs in Cardiff

For uPVC roof lantern repairs in Cardiff, the job is simple to describe: we replace brittle end caps, cappings and gaskets and reseal uPVC lanterns. Photos first, a guide price back, then a written fixed price.

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In Cardiff, as everywhere, many uPVC roof lanterns have an aluminium core with uPVC cladding and cappings. Send photos and we'll tell you what we think has failed.

Weathered white uPVC roof lantern on a single-storey rear extension

What you might be seeing

  • Yellowed or brittle end caps
  • Rattling or whistling in wind
  • Leaks at the ridge or eaves

What usually causes it?

UV ageing

uPVC components become brittle and crack after years of sun.

Clip failure

Clip-on cappings can lose their grip and lift.

Roof lanterns in Cardiff

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.

Neighbouring places we cover include Penarth (3 miles), Caerphilly (7 miles), Barry (7 miles).

How much should it cost?

Guide price, per lantern£175–£595 ex VAT£210–£714 inc VAT

Most uPVC roof lantern repairs jobs come in between £175 and £595 ex VAT (£210–£714 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 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.

uPVC 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.

Can you repair a lantern someone else installed in Cardiff?

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.

What does a uPVC lantern repair cost?

Usually £175–£595 ex VAT per lantern, confirmed in writing before work starts.

Is it worth repairing an old uPVC lantern?

If the glass is sound and the frame isn't distorted, a repair is usually far cheaper than replacement.

Other lantern repairs in Cardiff

uPVC roof lantern repairs near Cardiff

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