A cracked pane in a roof lantern needs prompt attention because the glass is overhead. Send photos from Deeside (CH5) and we'll tell you which it is — with the price agreed in writing before any work.

What you might be seeing
- A visible crack in the outer or inner pane
- A starburst from an impact point
- A crack running from an edge (often thermal stress)
Common causes we find
Thermal stress
Uneven heating across a pane, edge damage or partial shading can crack glass from the edge.
Spontaneous breakage
Toughened glass can occasionally break without warning, which is why laminated inner panes are recommended overhead.
Covering Deeside and nearby
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.
We cover Deeside as part of Clwyd, about 11 miles from Wrexham.
If you're just outside Deeside, we also cover Buckley (3 miles), Mold (5 miles), Flint (5 miles).
What should you expect to pay in Deeside?
Guide price for cracked lantern glass replacement: £295–£795 ex VAT (£354–£954 inc 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?
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.
Cracked lantern glass replacement in Deeside: questions
Do you cover Deeside?
Yes. We cover Deeside, including the CH5 postcode area, as part of Clwyd. 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.
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.
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 Deeside
- Roof lantern resealing in Deeside
- Ridge and hip repairs in Deeside
- Eaves beam and gutter repairs in Deeside
- Flat roof junction and flashing repairs in Deeside
- Misted glass unit replacement in Deeside
- Urgent leak make-safe in Deeside
Cracked lantern glass replacement near Deeside
More about cracked lantern glass replacement · All roof lantern repairs in Deeside