We carry out upstand and kerb repairs in Cowbridge and across the CF71 area. The upstand, or kerb, is the raised frame the lantern sits on.

Signs you need upstand and kerb repairs
- Water appearing below the lantern rather than from the glass
- Ponding water against the kerb after rain
- Cold, damp or mouldy lining around the opening
What usually causes it?
Membrane not dressed up
The flat roof covering should run up the kerb and be trimmed or flashed. If it stops short, water gets behind it.
Rotten timber
Untreated or wet timber kerbs rot from inside, so the lantern loses support and the seals open.
Covering Cowbridge and nearby
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.
Cowbridge is around 11 miles from Cardiff, and both are within our South Glamorgan coverage.
If you're just outside Cowbridge, we also cover Llantwit Major (4 miles), Bridgend (7 miles), Barry (8 miles).
How much should it cost?
Typical range: £395–£1,295 ex VAT, which is £474–£1,554 with 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?
Most lantern repairs in Wales need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 (as applied in Wales) apply and we confirm how the work will be signed off before we start. 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.
Upstand and kerb repairs in Cowbridge: questions
Do you cover Cowbridge?
Yes. We cover Cowbridge, including the CF71 postcode area, as part of South Glamorgan. 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.
Do you need to visit to price upstand and kerb repairs?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
How much does an upstand repair cost?
Typically £395–£1,295 ex VAT depending on size, timber condition and the roof covering. The fixed price is confirmed in writing before work starts.
Will my ceiling need repairing?
If water has soaked the lining it may need making good after the leak is fixed; we can advise, but internal decorating isn't included unless quoted.
Other lantern repairs in Cowbridge
- Roof lantern leak repairs in Cowbridge
- Flat roof junction and flashing repairs in Cowbridge
- Cracked lantern glass replacement in Cowbridge
- Solar control and self-cleaning glass upgrades in Cowbridge
- uPVC roof lantern repairs in Cowbridge
- Cleaning and maintenance in Cowbridge
Upstand and kerb repairs near Cowbridge
More about upstand and kerb repairs · All roof lantern repairs in Cowbridge