We carry out cleaning and maintenance in Carrickfergus and across the BT38 area. Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal.

Signs you need cleaning and maintenance
- Dirty glass or green algae on the frame
- Leaves or moss at the eaves
- You've never had it checked
Common causes we find
Algae and dirt
Hold moisture against seals and spoil the view.
Unnoticed wear
Nobody looks at the roof until it leaks.
About Carrickfergus and the BT38 area
Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
Carrickfergus is around 10 miles from Belfast, and both are within our County Antrim coverage.
If you're just outside Carrickfergus, we also cover Holywood (5 miles), Newtownabbey (6 miles), Bangor, Down (7 miles).
How much should it cost?
Guide price for cleaning and maintenance: £95–£245 ex VAT (£114–£294 inc VAT), per visit. 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.
Cleaning and maintenance 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 maintenance visit cost?
Usually £95–£245 ex VAT per visit depending on size and access, confirmed in writing before the visit.
Do you clean the inside of the glass?
We can, where safe access from inside is possible; let us know when booking.
Other lantern repairs in Carrickfergus
- Glazing bar and capping repairs in Carrickfergus
- Ridge and hip repairs in Carrickfergus
- Eaves beam and gutter repairs in Carrickfergus
- Flat roof junction and flashing repairs in Carrickfergus
- Solar control and self-cleaning glass upgrades in Carrickfergus
- Timber roof lantern repairs in Carrickfergus
Cleaning and maintenance near Carrickfergus
More about cleaning and maintenance · All roof lantern repairs in Carrickfergus