The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos from Bangor, Down (BT19) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Splits, blisters or lifted edges in the roof covering by the kerb
- Missing or loose edge trims and flashings
- Ponding on the roof next to the lantern
Common causes we find
Unbonded membrane
EPDM or single-ply that has come away from the kerb lets water run behind it.
Cracked GRP
Fibreglass roofs can crack at the kerb corner where movement concentrates.
Roof lanterns in Bangor, Down
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.
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.
Neighbouring places we cover include Newtownards (5 miles), Holywood (6 miles), Carrickfergus (7 miles).
What should you expect to pay in Bangor, Down?
Most flat roof junction and flashing repairs jobs come in between £245 and £695 ex VAT (£294–£834 including 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?
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.
Flat roof junction and flashing repairs in Bangor, Down: questions
How do I get a price for flat roof junction and flashing repairs in Bangor, Down?
Send a few photos of the lantern and the problem, with your Bangor, Down postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Bangor, Down do you cover?
As well as Bangor, Down, we cover nearby Newtownards, Holywood, Carrickfergus, Newtownabbey and the rest of County Down.
What does a junction repair cost?
Usually £245–£695 ex VAT, confirmed in writing before work starts.
Can you repair a GRP roof without it showing?
Repairs are colour-matched as closely as possible, but new topcoat next to weathered topcoat can look slightly different at first.
Other lantern repairs in Bangor, Down
- Eaves beam and gutter repairs in Bangor, Down
- Upstand and kerb repairs in Bangor, Down
- Solar control and self-cleaning glass upgrades in Bangor, Down
- Flat rooflight and skylight repairs in Bangor, Down
- Urgent leak make-safe in Bangor, Down
- Roof lantern replacement in Bangor, Down
Flat roof junction and flashing repairs near Bangor, Down
More about flat roof junction and flashing repairs · All roof lantern repairs in Bangor, Down