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 Archway (N19) 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
- Sealant around the ridge cap split or missing
- Staining along the hip bars inside
Why it happens
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.
Covering Archway and nearby
Sun and UV do more damage than rain on many lanterns here: brittle ridge caps, chalky finishes and hardened gaskets. They're cheap to replace before they let water in.
Across London, many lanterns sit on rear extensions with access only through the house, so we protect floors and plan the work to keep time indoors to a minimum. Parking and any permits are factored into the quote.
From Westminster to Archway is roughly 5 miles — all part of the Greater London area we cover.
Neighbouring places we cover include Holloway (1 mile), Muswell Hill (2 miles), Chalk Farm (2 miles).
What should you expect to pay in Archway?
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 Archway: questions
Can you repair a lantern someone else installed in Archway?
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 Archway do you cover?
As well as Archway, we cover nearby Holloway, Muswell Hill, Chalk Farm, Camden Town and the rest of Greater London.
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.
Other lantern repairs in Archway
- Flat roof junction and flashing repairs in Archway
- Cracked lantern glass replacement in Archway
- Timber roof lantern repairs in Archway
- uPVC roof lantern repairs in Archway
- Flat rooflight and skylight repairs in Archway
- Roof lantern replacement in Archway
Ridge and hip repairs near Archway
More about ridge and hip repairs · All roof lantern repairs in Archway