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Gwynedd · LL77

uPVC roof lantern repairs in Llangefni

We cover Llangefni and the wider Gwynedd area for uPVC roof lantern repairs. In short, we replace brittle end caps, cappings and gaskets and reseal uPVC lanterns — and you know the price before any work begins.

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Many uPVC roof lanterns have an aluminium core with uPVC cladding and cappings. Send photos from Llangefni (LL77) and we'll tell you which it is — with the price agreed in writing before any work.

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

What you might be seeing

  • Cracked cappings or ridge covers
  • Green algae along the bars
  • Rattling or whistling in wind

What usually causes it?

UV ageing

uPVC components become brittle and crack after years of sun.

Blocked drainage

As with all lanterns, blocked eaves drainage causes overflow.

Roof lanterns in Llangefni

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.

From Bangor, Gwynedd to Llangefni is roughly 8 miles — all part of the Gwynedd area we cover.

Neighbouring places we cover include Bangor, Gwynedd (8 miles), Caernarfon (8 miles), Holyhead (14 miles).

Guide prices for uPVC roof lantern repairs in Llangefni

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

Typical range: £175–£595 ex VAT, which is £210–£714 with 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.

uPVC roof lantern repairs in Llangefni: questions

Do you cover Llangefni?

Yes. We cover Llangefni, including the LL77 postcode area, as part of Gwynedd. 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 Llangefni do you cover?

As well as Llangefni, we cover nearby Bangor, Gwynedd, Caernarfon, Holyhead, Llandudno and the rest of Gwynedd.

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.

Other lantern repairs in Llangefni

uPVC roof lantern repairs near Llangefni

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