In Walton-on-Thames, as everywhere, the upstand, or kerb, is the raised frame the lantern sits on. Send photos and we'll tell you what we think has failed.

Is it time for upstand and kerb repairs?
- Water appearing below the lantern rather than from the glass
- Roof membrane not lapped up the kerb, or peeling off it
- 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.
About Walton-on-Thames and the KT12 area
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
We cover Walton-on-Thames as part of Surrey, about 13 miles from Guildford.
If you're just outside Walton-on-Thames, we also cover Sunbury-on-Thames (1 mile), Esher (2 miles), Hampton (3 miles).
What should you expect to pay in Walton-on-Thames?
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 England?
In England, 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, so we set out the route in writing first. Listed buildings need listed building consent from the local council for alterations, and conservation areas can have extra controls; like-for-like repairs are treated differently from changes, so check with the council's conservation officer first.
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 Walton-on-Thames: questions
How do I get a price for upstand and kerb repairs in Walton-on-Thames?
Send a few photos of the lantern and the problem, with your Walton-on-Thames postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Can you repair a lantern someone else installed in Walton-on-Thames?
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.
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 Walton-on-Thames
- Roof lantern resealing in Walton-on-Thames
- Ridge and hip repairs in Walton-on-Thames
- Misted glass unit replacement in Walton-on-Thames
- Opening vent and actuator repairs in Walton-on-Thames
- Flat rooflight and skylight repairs in Walton-on-Thames
- Orangery lantern repairs in Walton-on-Thames
Upstand and kerb repairs near Walton-on-Thames
More about upstand and kerb repairs · All roof lantern repairs in Walton-on-Thames