We carry out cracked lantern glass replacement in Portadown and across the BT62 area. A cracked pane in a roof lantern needs prompt attention because the glass is overhead.

What you might be seeing
- A starburst from an impact point
- A crack running from an edge (often thermal stress)
- Broken glass inside the room — keep everyone out of the area
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.
About Portadown and the BT62 area
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.
Portadown is around 10 miles from Armagh, and both are within our County Armagh coverage.
Neighbouring places we cover include Craigavon (3 miles), Lurgan (5 miles), Banbridge (8 miles).
What should you expect to pay in Portadown?
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 Northern Ireland?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Northern Ireland. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations (Northern Ireland) 2012; we confirm in writing which route applies before any replacement. Listed buildings in Northern Ireland need listed building consent from the council for alterations; check with the council's planning service 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 Portadown: questions
Do you cover Portadown?
Yes. We cover Portadown, including the BT62 postcode area, as part of County Armagh. 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 cracked lantern glass replacement in Portadown?
Send a few photos of the lantern and the problem, with your Portadown postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
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 Portadown
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- Upstand and kerb repairs in Portadown
- Flat roof junction and flashing repairs in Portadown
- Misted glass unit replacement in Portadown
- Opening vent and actuator repairs in Portadown
- Roof lantern replacement in Portadown
Cracked lantern glass replacement near Portadown
More about cracked lantern glass replacement · All roof lantern repairs in Portadown