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Gwynedd · LL57

Roof lantern replacement in Bangor, Gwynedd

We cover Bangor, Gwynedd and the wider Gwynedd area for roof lantern replacement. In short, we replace lanterns that are beyond economic repair, checking the kerb and re-making the junction — and you know the price before any work begins.

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We carry out roof lantern replacement in Bangor, Gwynedd and across the LL57 area. We're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed.

Two installers lowering a new aluminium roof lantern onto a prepared timber kerb

What you might be seeing

  • Several misted or cracked units
  • Repeated leaks after previous repairs
  • Single-glazed or very poor thermal performance

Common causes we find

Age

Older lanterns can't be brought up to modern performance with repairs alone.

Structural damage

Impact or movement distorts the frame.

Roof lanterns in Bangor, Gwynedd

Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.

Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.

If you're just outside Bangor, Gwynedd, we also cover Llangefni (8 miles), Caernarfon (8 miles), Llandudno (14 miles).

What should you expect to pay in Bangor, Gwynedd?

Guide price, supplied and fitted£1,995–£4,995 ex VAT£2,394–£5,994 inc VAT

Typical range: £1,995–£4,995 ex VAT, which is £2,394–£5,994 with VAT, supplied and fitted. 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.

Roof lantern replacement in Bangor, Gwynedd: questions

Do you cover Bangor, Gwynedd?

Yes. We cover Bangor, Gwynedd, including the LL57 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.

Can you repair a lantern someone else installed in Bangor, Gwynedd?

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.

How much does a replacement roof lantern cost?

Standard sizes typically £1,995–£4,995 ex VAT supplied and fitted; bespoke sizes and kerb rebuilds are priced on survey. You get the fixed price in writing first.

Will you tell me if repair is enough?

Yes. We'd rather do a repair that works than sell a lantern you don't need.

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