The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos from Montrose (DD10) and we'll tell you which it is — with the price agreed in writing before any work.
Signs you need flat roof junction and flashing repairs
- Leak near the lantern but not from the frame
- Splits, blisters or lifted edges in the roof covering by the kerb
- Ponding on the roof next to the lantern
Common causes we find
Unbonded membrane
EPDM or single-ply that has come away from the kerb lets water run behind it.
Missing trims
Without a trim or flashing to protect the top edge, water gets in behind the membrane.
About Montrose and the DD10 area
Snow and ice sitting at the eaves can block a lantern's drainage and push water back under the glass as it melts. If your lantern leaks after a thaw rather than after rain, tell us — it points to the eaves and kerb.
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.
From Dundee to Montrose is roughly 26 miles — all part of the Dundee and Angus area we cover.
If you're just outside Montrose, we also cover Brechin (8 miles), Arbroath (11 miles), Carnoustie (17 miles).
Guide prices for flat roof junction and flashing repairs in Montrose
Typical range: £245–£695 ex VAT, which is £294–£834 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.
Flat roof junction and flashing repairs in Montrose: questions
Can you repair a lantern someone else installed in Montrose?
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 Montrose do you cover?
As well as Montrose, we cover nearby Brechin, Arbroath, Carnoustie, Forfar and the rest of Dundee and Angus.
Do you repair the whole flat roof?
We repair the area around the lantern. If the wider roof is failing we'll tell you and can quote, but we won't push a new roof if a local repair will do.
What does a junction repair cost?
Usually £245–£695 ex VAT, confirmed in writing before work starts.
Other lantern repairs in Montrose
- Roof lantern resealing in Montrose
- Eaves beam and gutter repairs in Montrose
- Upstand and kerb repairs in Montrose
- Slipped glass panel repairs in Montrose
- Roof lantern respraying in Montrose
- Orangery lantern repairs in Montrose
Flat roof junction and flashing repairs near Montrose
More about flat roof junction and flashing repairs · All roof lantern repairs in Montrose