In Barnes, as everywhere, we're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed. Send photos and we'll tell you what we think has failed.

What you might be seeing
- Rotten timber throughout
- Repeated leaks after previous repairs
- Single-glazed or very poor thermal performance
Why it happens
Structural damage
Impact or movement distorts the frame.
Rot
Timber lanterns left unmaintained.
Roof lanterns in Barnes
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.
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.
Barnes is around 5 miles from Westminster, and both are within our Greater London coverage.
If you're just outside Barnes, we also cover Chiswick (1 mile), Putney (2 miles), Fulham (2 miles).
How much should it cost?
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 Barnes: questions
Do you cover Barnes?
Yes. We cover Barnes, including the SW13 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.
Can you repair a lantern someone else installed in Barnes?
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.
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 Barnes
- Roof lantern resealing in Barnes
- Eaves beam and gutter repairs in Barnes
- uPVC roof lantern repairs in Barnes
- Flat rooflight and skylight repairs in Barnes
- Cleaning and maintenance in Barnes
- Orangery lantern repairs in Barnes
Roof lantern replacement near Barnes
More about roof lantern replacement · All roof lantern repairs in Barnes