Roof lantern leak repairs in County Down

A roof lantern leak is almost always a failed seal, a lifted capping, blocked eaves drainage or a problem where the kerb meets the flat roof — not a failed lantern. We carry out roof lantern leak repairs across County Down, with a guide price from your photos and a fixed price in writing before any work starts.

Rainwater running down an internal glazing bar of a roof lantern above a kitchen

Signs you need roof lantern leak repairs

Drips from a glazing bar or the eaves beam when it rains
Brown staining or bubbling paint on the plasterboard lining around the lantern
A leak that only appears in wind-driven rain from one direction

What usually causes it?

Lifted or misaligned cappings

Top cappings clip or screw over each glazing bar. If one has lifted, been knocked or was never seated, rain gets straight under it.

The kerb or roof junction

If the flat roof membrane isn't dressed high enough up the kerb, or the kerb has no fall, water sits against the joint and finds its way in under the lantern.

Roof lanterns in County Down

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.

Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.

What should you expect to pay for roof lantern leak repairs in County Down?

Guide price, per lantern£195–£595 ex VAT£234–£714 inc VAT

Guide price for roof lantern leak repairs: £195–£595 ex VAT (£234–£714 inc 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 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.

Roof lantern leak repairs in County Down: questions

How much does a roof lantern leak repair cost?

Most leak repairs fall between £195 and £595 ex VAT for a standard lantern with ladder access. The fixed price is confirmed in writing before any work starts.

Can you fix the leak in the rain?

We can make the lantern safe in wet weather, but sealants and tapes need a dry, clean surface to bond, so permanent repairs are done in a dry window.

Which towns in County Down do you cover?

All of County Down, including Newry, Bangor, Down, Newtownards, Banbridge, Downpatrick, Holywood. Rural and remote addresses are covered by arrangement.

How do I get a price for roof lantern leak repairs in County Down?

Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.

Other repairs in County Down

Nearby areas

More about roof lantern leak repairs · All roof lantern repairs in County Down