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. We carry out ridge and hip repairs across South Glamorgan, with a guide price from your photos and a fixed price in writing before any work starts.
Signs you need ridge and hip repairs
- A cracked or faded ridge end cap
- Sealant around the ridge cap split or missing
- Staining along the hip bars inside
What usually causes it?
Movement at the junction
Several bars meet at one point and each moves slightly with temperature; the seals at the ridge take the strain.
Poor original sealing
Ridge details are fiddly. If the original sealing was rushed, it's often the first place to leak.
Roof lanterns in South Glamorgan
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.
What should you expect to pay for ridge and hip repairs in South Glamorgan?
Typical range: £195–£445 ex VAT, which is £234–£534 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 Wales?
In Wales, 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 (as applied in Wales), so we set out the route in writing first. 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.
Ridge and hip repairs in South Glamorgan: questions
What does a ridge repair cost?
Usually £195–£445 ex VAT for a standard lantern, confirmed in writing before work starts.
Can you replace just the ridge cap?
Yes, if a compatible cap is available and the seals underneath are sound.
Which towns in South Glamorgan do you cover?
All of South Glamorgan, including Cardiff, Barry, Penarth, Cowbridge, Llantwit Major. Rural and remote addresses are covered by arrangement.
How do I get a price for ridge and hip repairs in South Glamorgan?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in South Glamorgan
- Solar control and self-cleaning glass upgrades in South Glamorgan
- Timber roof lantern repairs in South Glamorgan
- Aluminium roof lantern repairs in South Glamorgan
- Flat rooflight and skylight repairs in South Glamorgan
- Leak investigation and inspection in South Glamorgan
- Orangery lantern repairs in South Glamorgan
Nearby areas
- Ridge and hip repairs in Mid Glamorgan
- Ridge and hip repairs in Gwent
- Ridge and hip repairs in West Glamorgan
- Ridge and hip repairs in Powys
- Ridge and hip repairs in Dyfed
More about ridge and hip repairs · All roof lantern repairs in South Glamorgan