In Forfar, 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.

Signs you need upstand and kerb repairs
- Water appearing below the lantern rather than from the glass
- Soft or spongy timber at the base of the lantern
- 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 Forfar and nearby
Freeze-thaw cycles open up tired sealant and gaskets faster than mild weather does. A spring check after a hard winter catches most problems before they leak.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
We cover Forfar as part of Dundee and Angus, about 12 miles from Dundee.
We also cover nearby Brechin (11 miles), Carnoustie (12 miles), Dundee (12 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 Scotland?
In Scotland, 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 (Scotland) Regulations 2004, so we set out the route in writing first. Listed buildings in Scotland need listed building consent from the planning authority for alterations, with Historic Environment Scotland guidance; check 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 Forfar: questions
How do I get a price for upstand and kerb repairs in Forfar?
Send a few photos of the lantern and the problem, with your Forfar 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 Forfar do you cover?
As well as Forfar, we cover nearby Brechin, Carnoustie, Dundee, Arbroath and the rest of Dundee and Angus.
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 Forfar
- Misted glass unit replacement in Forfar
- Cracked lantern glass replacement in Forfar
- Timber roof lantern repairs in Forfar
- Aluminium roof lantern repairs in Forfar
- Opening vent and actuator repairs in Forfar
- Roof lantern respraying in Forfar
Upstand and kerb repairs near Forfar
More about upstand and kerb repairs · All roof lantern repairs in Forfar