Commercial lanterns and atrium rooflights fail in the same ways as domestic ones, but access, safety and disruption matter more. Send photos from Barnes (SW13) and we'll tell you which it is — with the price agreed in writing before any work.

Is it time for commercial roof lantern repairs?
- Leaks into trading or office areas
- Insurance or landlord requirement for a report
- Managed buildings with planned maintenance needs
Common causes we find
Scale
More lanterns, more joints, more drainage to block.
Access
Roof access, edge protection and permits all affect the plan.
About Barnes and the SW13 area
Drier, sunnier parts of the UK are kinder to seals than the wet west, but strong sun ages sealant, gaskets and plastic end caps, and south- or west-facing lanterns can make rooms very warm. Solar control glass and an opening vent help.
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.
From Westminster to Barnes is roughly 5 miles — all part of the Greater London area we cover.
Neighbouring places we cover include Chiswick (1 mile), Putney (2 miles), Fulham (2 miles).
How much should it cost?
Typical range: £495–£2,995 ex VAT, which is £594–£3,594 with 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.
Commercial roof lantern repairs in Barnes: questions
Do you need to visit to price commercial roof lantern repairs?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
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.
What do commercial lantern repairs cost?
From about £495 ex VAT per lantern; programmes, access equipment and out-of-hours work are priced on survey and confirmed in writing.
Do you provide RAMS?
Yes, before work starts.
Other lantern repairs in Barnes
- Roof lantern leak repairs in Barnes
- Roof lantern resealing in Barnes
- Opening vent and actuator repairs in Barnes
- Roof lantern respraying in Barnes
- Leak investigation and inspection in Barnes
- Cleaning and maintenance in Barnes
Commercial roof lantern repairs near Barnes
More about commercial roof lantern repairs · All roof lantern repairs in Barnes