We carry out cracked lantern glass replacement in Colwyn Bay and across the LL29 area. A cracked pane in a roof lantern needs prompt attention because the glass is overhead.

Is it time for cracked lantern glass replacement?
- A visible crack in the outer or inner pane
- A starburst from an impact point
- Broken glass inside the room — keep everyone out of the area
Why it happens
Impact
Hail, falling branches or dropped tools.
Thermal stress
Uneven heating across a pane, edge damage or partial shading can crack glass from the edge.
Covering Colwyn Bay and nearby
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.
We cover Colwyn Bay as part of Clwyd, about 35 miles from Wrexham.
We also cover nearby Llandudno (5 miles), Abergele (6 miles), Rhyl (10 miles).
How much should it cost?
Most cracked lantern glass replacement jobs come in between £295 and £795 ex VAT (£354–£954 including VAT), per glass unit. 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?
- 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.
Cracked lantern glass replacement in Colwyn Bay: questions
Do you need to visit to price cracked lantern glass replacement?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
Which places near Colwyn Bay do you cover?
As well as Colwyn Bay, we cover nearby Llandudno, Abergele, Rhyl, Prestatyn and the rest of Clwyd.
What does replacing cracked lantern glass cost?
Usually £295–£795 ex VAT per unit depending on size, spec and access, confirmed in writing before work starts.
Why did my glass crack on a sunny day?
Thermal stress — one part of the pane heats faster than another, often where it's shaded or chipped at the edge.
Other lantern repairs in Colwyn Bay
- Glazing bar and capping repairs in Colwyn Bay
- Misted glass unit replacement in Colwyn Bay
- Solar control and self-cleaning glass upgrades in Colwyn Bay
- Aluminium roof lantern repairs in Colwyn Bay
- Flat rooflight and skylight repairs in Colwyn Bay
- Roof lantern replacement in Colwyn Bay
Cracked lantern glass replacement near Colwyn Bay
More about cracked lantern glass replacement · All roof lantern repairs in Colwyn Bay