We carry out roof lantern replacement in Finchley and across the N3 area. We're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed.

Is it time for roof lantern replacement?
- Rotten timber throughout
- Repeated leaks after previous repairs
- Single-glazed or very poor thermal performance
What usually causes it?
Age
Older lanterns can't be brought up to modern performance with repairs alone.
Structural damage
Impact or movement distorts the frame.
About Finchley and the N3 area
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.
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.
Finchley is around 8 miles from Westminster, and both are within our Greater London coverage.
If you're just outside Finchley, we also cover Muswell Hill (2 miles), Cricklewood (3 miles), Kilburn (3 miles).
Guide prices for roof lantern replacement in Finchley
Guide price for roof lantern replacement: £1,995–£4,995 ex VAT (£2,394–£5,994 inc VAT), supplied and fitted. 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.
Roof lantern replacement in Finchley: questions
Do you cover Finchley?
Yes. We cover Finchley, including the N3 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 Finchley do you cover?
As well as Finchley, we cover nearby Muswell Hill, Cricklewood, Kilburn, Wood Green and the rest of Greater London.
How much does a replacement roof lantern cost?
Standard sizes typically £1,995–£4,995 ex VAT supplied and fitted; bespoke sizes and kerb rebuilds are priced on survey. You get the fixed price in writing first.
Can the new lantern use the existing opening?
Usually, if the kerb is sound and the size suits a standard or made-to-measure lantern.
Other lantern repairs in Finchley
- Roof lantern leak repairs in Finchley
- Roof lantern resealing in Finchley
- Misted glass unit replacement in Finchley
- Cracked lantern glass replacement in Finchley
- Timber roof lantern repairs in Finchley
- Leak investigation and inspection in Finchley
Roof lantern replacement near Finchley
More about roof lantern replacement · All roof lantern repairs in Finchley