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Greater London · SW1P

Ridge and hip repairs in Westminster

Got a leak at the ridge in Westminster? We repair, reseal or replace the ridge end cap and the hip junctions at the top of the lantern. Send photos for a free guide price — you'll get a fixed price in writing before any work starts.

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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 Westminster (SW1P) and we'll tell you which it is — with the price agreed in writing before any work.

Ridge end cap and hip bars at the top of an anthracite aluminium roof lantern

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.

Poor original sealing

Ridge details are fiddly. If the original sealing was rushed, it's often the first place to leak.

Roof lanterns in Westminster

Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.

London's extensions are often tight to neighbouring walls and roofs. Where a repair needs access over a neighbour's property, we'll tell you in advance so you can arrange it.

If you're just outside Westminster, we also cover Pimlico (1 mile), Chelsea (2 miles), Battersea (2 miles).

Guide prices for ridge and hip repairs in Westminster

Guide price, per lantern£195–£445 ex VAT£234–£534 inc VAT

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?

Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. 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?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

Ridge and hip repairs in Westminster: questions

Do you cover Westminster?

Yes. We cover Westminster, including the SW1P postcode area, as part of Greater London. 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.

Which places near Westminster do you cover?

As well as Westminster, we cover nearby Pimlico, Chelsea, Battersea, Brixton and the rest of Greater London.

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 Westminster

Ridge and hip repairs near Westminster

More about ridge and hip repairs · All roof lantern repairs in Westminster

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