The ridge is where the hip bars and glazing bars meet at the top of a lantern, usually under a moulded or pressed end cap. Send photos from Castle Douglas (DG7) and we'll tell you which it is — with the price agreed in writing before any work.

What you might be seeing
- Drips near the centre or top of the lantern
- A cracked or faded ridge end cap
- Sealant around the ridge cap split or missing
What usually causes it?
UV-damaged end caps
Plastic ridge end caps become brittle and crack, especially on south-facing lanterns.
Movement at the junction
Several bars meet at one point and each moves slightly with temperature; the seals at the ridge take the strain.
About Castle Douglas and the DG7 area
Western and upland parts of the UK get more rain and more wind-driven rain than the east, and that's what finds weak cappings and blocked eaves first. Lanterns here benefit from a check of the bars on the most exposed face and a clear eaves channel before winter.
We cover Castle Douglas as part of Dumfries and Galloway, about 15 miles from Dumfries.
We also cover nearby Kirkcudbright (9 miles), Dumfries (15 miles), Lockerbie (26 miles).
What should you expect to pay in Castle Douglas?
Guide price for ridge and hip repairs: £195–£445 ex VAT (£234–£534 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 Scotland?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Scotland. Replacing the whole lantern or enlarging the opening is different and falls under the Building (Scotland) Regulations 2004; we confirm in writing which route applies before any replacement. 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.
Ridge and hip repairs in Castle Douglas: questions
How do I get a price for ridge and hip repairs in Castle Douglas?
Send a few photos of the lantern and the problem, with your Castle Douglas 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 Castle Douglas do you cover?
As well as Castle Douglas, we cover nearby Kirkcudbright, Dumfries, Lockerbie, Annan and the rest of Dumfries and Galloway.
My ridge cap is a different colour from the frame — does that matter?
Faded or chalky caps are a sign of UV damage. Colour alone isn't a leak, but brittle caps crack, so we check them.
Can you replace just the ridge cap?
Yes, if a compatible cap is available and the seals underneath are sound.
Other lantern repairs in Castle Douglas
- Roof lantern leak repairs in Castle Douglas
- Eaves beam and gutter repairs in Castle Douglas
- Opening vent and actuator repairs in Castle Douglas
- Leak investigation and inspection in Castle Douglas
- Orangery lantern repairs in Castle Douglas
- Commercial roof lantern repairs in Castle Douglas
Ridge and hip repairs near Castle Douglas
More about ridge and hip repairs · All roof lantern repairs in Castle Douglas