The ridge is where the hip bars and glazing bars meet at the top of a lantern, usually under a moulded or pressed end cap. Send photos from Carrickfergus (BT38) and we'll tell you which it is — with the price agreed in writing before any work.

What you might be seeing
- Drips near the centre or top of the lantern
- A cracked or faded ridge end cap
- Sealant around the ridge cap split or missing
What usually causes it?
UV-damaged end caps
Plastic ridge end caps become brittle and crack, especially on south-facing lanterns.
Movement at the junction
Several bars meet at one point and each moves slightly with temperature; the seals at the ridge take the strain.
Covering Carrickfergus and nearby
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.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
We cover Carrickfergus as part of County Antrim, about 10 miles from Belfast.
We also cover nearby Holywood (5 miles), Newtownabbey (6 miles), Bangor, Down (7 miles).
What should you expect to pay in Carrickfergus?
Most ridge and hip repairs jobs come in between £195 and £445 ex VAT (£234–£534 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?
In Northern Ireland, 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 (Northern Ireland) 2012, so we set out the route in writing first. 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.
Ridge and hip repairs in Carrickfergus: questions
Do you cover Carrickfergus?
Yes. We cover Carrickfergus, including the BT38 postcode area, as part of County Antrim. 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.
Can you repair a lantern someone else installed in Carrickfergus?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
What does a ridge repair cost?
Usually £195–£445 ex VAT for a standard lantern, confirmed in writing before work starts.
Can you replace just the ridge cap?
Yes, if a compatible cap is available and the seals underneath are sound.
Other lantern repairs in Carrickfergus
- Glazing bar and capping repairs in Carrickfergus
- Misted glass unit replacement in Carrickfergus
- Solar control and self-cleaning glass upgrades in Carrickfergus
- Aluminium roof lantern repairs in Carrickfergus
- Opening vent and actuator repairs in Carrickfergus
- Urgent leak make-safe in Carrickfergus
Ridge and hip repairs near Carrickfergus
More about ridge and hip repairs · All roof lantern repairs in Carrickfergus