In Runcorn, as everywhere, 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 and we'll tell you what we think has failed.

What you might be seeing
- Drips near the centre or top of the lantern
- Sealant around the ridge cap split or missing
- Staining along the hip bars inside
Why it happens
UV-damaged end caps
Plastic ridge end caps become brittle and crack, especially on south-facing lanterns.
Poor original sealing
Ridge details are fiddly. If the original sealing was rushed, it's often the first place to leak.
Covering Runcorn and nearby
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.
From Chester to Runcorn is roughly 12 miles — all part of the Cheshire area we cover.
Close by, we also cover Widnes (1 mile), Halewood (4 miles), Huyton (7 miles).
How much should it cost?
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 England?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. 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.
Ridge and hip repairs in Runcorn: questions
Do you cover Runcorn?
Yes. We cover Runcorn, including the WA7 postcode area, as part of Cheshire. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
How do I get a price for ridge and hip repairs in Runcorn?
Send a few photos of the lantern and the problem, with your Runcorn postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
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 Runcorn
- Roof lantern resealing in Runcorn
- Glazing bar and capping repairs in Runcorn
- Misted glass unit replacement in Runcorn
- Opening vent and actuator repairs in Runcorn
- Orangery lantern repairs in Runcorn
- Commercial roof lantern repairs in Runcorn
Ridge and hip repairs near Runcorn
More about ridge and hip repairs · All roof lantern repairs in Runcorn