In Cowbridge, as everywhere, the eaves beam is the frame around the base of a lantern, and most designs have a drainage channel inside it that lets water out through small weep slots. Send photos and we'll tell you what we think has failed.

What you might be seeing
- Drips along the bottom edge of the lantern
- Water at the corners after heavy rain
- Moss, leaves or grit visible along the base
Why it happens
Blocked weep slots
Debris settles at the eaves and blocks the outlets, so the channel fills and overflows inward.
Open corner joints
The eaves beam is mitred or jointed at the corners; if the joint seal fails, water drops straight through.
Covering Cowbridge 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.
Cowbridge is around 11 miles from Cardiff, and both are within our South Glamorgan coverage.
We also cover nearby Llantwit Major (4 miles), Bridgend (7 miles), Barry (8 miles).
Guide prices for eaves beam and gutter repairs in Cowbridge
Guide price for eaves beam and gutter repairs: £175–£395 ex VAT (£210–£474 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 Wales?
In Wales, 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 2010 (as applied in Wales), so we set out the route in writing first. Listed buildings in Wales need listed building consent from the local planning authority for alterations, with Cadw guidance on historic buildings; check with the council 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.
Eaves beam and gutter repairs in Cowbridge: questions
How do I get a price for eaves beam and gutter repairs in Cowbridge?
Send a few photos of the lantern and the problem, with your Cowbridge 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 Cowbridge do you cover?
As well as Cowbridge, we cover nearby Llantwit Major, Bridgend, Barry, Pontypridd and the rest of South Glamorgan.
How much does an eaves repair cost?
Clearing and resealing is usually £175–£395 ex VAT; rebuilding a damaged eaves section is priced on survey. You get a fixed price in writing first.
Can I clear the eaves myself?
Only if you can do it safely from a properly secured ladder without standing on the roof or leaning on the glass. If in doubt, don't — falls from flat roofs are a common cause of injury.
Other lantern repairs in Cowbridge
- Roof lantern resealing in Cowbridge
- Aluminium roof lantern repairs in Cowbridge
- Leak investigation and inspection in Cowbridge
- Urgent leak make-safe in Cowbridge
- Roof lantern replacement in Cowbridge
- Commercial roof lantern repairs in Cowbridge
Eaves beam and gutter repairs near Cowbridge
More about eaves beam and gutter repairs · All roof lantern repairs in Cowbridge