The upstand, or kerb, is the raised frame the lantern sits on. Send photos from Brecon (LD3) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Water appearing below the lantern rather than from the glass
- Soft or spongy timber at the base of the lantern
- Roof membrane not lapped up the kerb, or peeling off it
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.
Roof lanterns in Brecon
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.
Brecon is around 40 miles from Newtown, and both are within our Powys coverage.
If you're just outside Brecon, we also cover Tredegar (13 miles), Merthyr Tydfil (14 miles), Ebbw Vale (14 miles).
What should you expect to pay in Brecon?
Most upstand and kerb repairs jobs come in between £395 and £1,295 ex VAT (£474–£1,554 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 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 Brecon: questions
How do I get a price for upstand and kerb repairs in Brecon?
Send a few photos of the lantern and the problem, with your Brecon postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
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.
Can you add insulation to the kerb?
Yes. Insulated kerbs reduce cold bridging and help with condensation around the opening.
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 Brecon
- Eaves beam and gutter repairs in Brecon
- Cracked lantern glass replacement in Brecon
- Slipped glass panel repairs in Brecon
- Solar control and self-cleaning glass upgrades in Brecon
- Aluminium roof lantern repairs in Brecon
- Leak investigation and inspection in Brecon
Upstand and kerb repairs near Brecon
More about upstand and kerb repairs · All roof lantern repairs in Brecon