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Wales · Gwynedd

uPVC roof lantern repairs in Gwynedd

We provide uPVC roof lantern repairs across Gwynedd, from Bangor, Gwynedd, Caernarfon, Dolgellau. We replace brittle end caps, cappings and gaskets and reseal uPVC lanterns, and you get a fixed price in writing before any work starts.

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Many uPVC roof lanterns have an aluminium core with uPVC cladding and cappings. We carry out uPVC roof lantern repairs across Gwynedd, with a guide price from your photos and a fixed price in writing before any work starts.

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

Signs you need uPVC roof lantern repairs

  • Yellowed or brittle end caps
  • Cracked cappings or ridge covers
  • Leaks at the ridge or eaves

What usually causes it?

Clip failure

Clip-on cappings can lose their grip and lift.

Blocked drainage

As with all lanterns, blocked eaves drainage causes overflow.

Roof lanterns in Gwynedd

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.

Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.

What should you expect to pay for uPVC roof lantern repairs in Gwynedd?

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?

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.

uPVC roof lantern repairs in Gwynedd: questions

What does a uPVC lantern repair cost?

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

Can you change my uPVC lantern's colour?

Yes, with a respray suitable for uPVC.

Which towns in Gwynedd do you cover?

All of Gwynedd, including Bangor, Gwynedd, Caernarfon, Dolgellau, Holyhead, Llangefni, Porthmadog. Rural and remote addresses are covered by arrangement.

How do I get a price for uPVC roof lantern repairs in Gwynedd?

Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.

Other repairs in Gwynedd

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More about uPVC roof lantern repairs · All roof lantern repairs in Gwynedd

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