Commercial lanterns and atrium rooflights fail in the same ways as domestic ones, but access, safety and disruption matter more. Send photos from Caernarfon (LL55) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Multiple lanterns on one roof needing a programme
- Insurance or landlord requirement for a report
- Managed buildings with planned maintenance needs
What usually causes it?
Scale
More lanterns, more joints, more drainage to block.
Deferred maintenance
Leaks appear when maintenance has slipped.
About Caernarfon and the LL55 area
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.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
We cover Caernarfon as part of Gwynedd, about 8 miles from Bangor, Gwynedd.
Neighbouring places we cover include Llangefni (8 miles), Bangor, Gwynedd (8 miles), Porthmadog (16 miles).
Guide prices for commercial roof lantern repairs in Caernarfon
Typical range: £495–£2,995 ex VAT, which is £594–£3,594 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?
- Send photosWhatsApp or upload a few photos and tell us when it leaks.
- Guide priceWe reply with a guide price and whether a visit is needed.
- Fixed price in writingYou approve the price and the date before anything starts.
- Repair and testWe fix what's failed, water-test where it matters, and send photos.
Commercial roof lantern repairs in Caernarfon: questions
Do you cover Caernarfon?
Yes. We cover Caernarfon, including the LL55 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.
How do I get a price for commercial roof lantern repairs in Caernarfon?
Send a few photos of the lantern and the problem, with your Caernarfon postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
What do commercial lantern repairs cost?
From about £495 ex VAT per lantern; programmes, access equipment and out-of-hours work are priced on survey and confirmed in writing.
Can you invoice a managing agent?
Yes — tell us who the client and invoice contact are when you enquire.
Other lantern repairs in Caernarfon
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Commercial roof lantern repairs near Caernarfon
More about commercial roof lantern repairs · All roof lantern repairs in Caernarfon