We carry out misted glass unit replacement in Limavady and across the BT49 area. If a roof lantern pane looks cloudy or wet between the two layers of glass, the sealed unit has failed and moisture has got inside.

Signs you need misted glass unit replacement
- Fog, droplets or white bloom between the panes
- One pane looks hazier than the others
- Water marks or tide lines inside the unit
Common causes we find
Water sitting on the edge
If the unit's edge sits in water because the eaves don't drain, the seal fails sooner.
Movement and age
Thermal movement and age wear the seal; units at the bottom of the lantern often go first.
Roof lanterns in Limavady
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.
We cover Limavady as part of County Londonderry, about 15 miles from Derry~Londonderry.
We also cover nearby Coleraine (13 miles), Portstewart (13 miles), Derry~Londonderry (15 miles).
Guide prices for misted glass unit replacement in Limavady
Most misted glass unit replacement jobs come in between £245 and £595 ex VAT (£294–£714 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?
Most lantern repairs in Northern Ireland need no approval at all. Where a job turns into a replacement, the Building Regulations (Northern Ireland) 2012 apply and we confirm how the work will be signed off before we start. 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.
Misted glass unit replacement in Limavady: questions
Do you cover Limavady?
Yes. We cover Limavady, including the BT49 postcode area, as part of County Londonderry. 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 misted glass unit replacement in Limavady?
Send a few photos of the lantern and the problem, with your Limavady postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
How much does a misted lantern unit cost to replace?
Usually £245–£595 ex VAT per unit depending on size, glass spec and access, confirmed in writing before work starts.
How long does a replacement unit take?
Units are made to measure, so there's a lead time between measuring and fitting. Fitting itself is usually a short visit.
Other lantern repairs in Limavady
- Cracked lantern glass replacement in Limavady
- Slipped glass panel repairs in Limavady
- Solar control and self-cleaning glass upgrades in Limavady
- Roof lantern respraying in Limavady
- Flat rooflight and skylight repairs in Limavady
- Leak investigation and inspection in Limavady
Misted glass unit replacement near Limavady
More about misted glass unit replacement · All roof lantern repairs in Limavady