The upstand, or kerb, is the raised frame the lantern sits on. Send photos from Deeside (CH5) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Soft or spongy timber at the base of the lantern
- Roof membrane not lapped up the kerb, or peeling off it
- Ponding water against the kerb after rain
What usually causes it?
Kerb too low
If the kerb doesn't rise enough above the finished roof, water sits against the joint during heavy rain.
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.
Covering Deeside 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.
We cover Deeside as part of Clwyd, about 11 miles from Wrexham.
Close by, we also cover Buckley (3 miles), Mold (5 miles), Flint (5 miles).
How much should it cost?
Guide price for upstand and kerb repairs: £395–£1,295 ex VAT (£474–£1,554 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?
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 Deeside: questions
Can you repair a lantern someone else installed in Deeside?
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.
Which places near Deeside do you cover?
As well as Deeside, we cover nearby Buckley, Mold, Flint, Wrexham and the rest of Clwyd.
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.
Can you add insulation to the kerb?
Yes. Insulated kerbs reduce cold bridging and help with condensation around the opening.
Other lantern repairs in Deeside
- Ridge and hip repairs in Deeside
- Flat roof junction and flashing repairs in Deeside
- Solar control and self-cleaning glass upgrades in Deeside
- Timber roof lantern repairs in Deeside
- uPVC roof lantern repairs in Deeside
- Commercial roof lantern repairs in Deeside
Upstand and kerb repairs near Deeside
More about upstand and kerb repairs · All roof lantern repairs in Deeside