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 from Welling (DA16) and we'll tell you which it is — with the price agreed in writing before any work.

Signs you need roof lantern replacement
- Distorted or sagging frame
- Repeated leaks after previous repairs
- Single-glazed or very poor thermal performance
Why it happens
Age
Older lanterns can't be brought up to modern performance with repairs alone.
Rot
Timber lanterns left unmaintained.
Roof lanterns in Welling
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.
We cover Welling as part of Greater London, about 11 miles from Westminster.
If you're just outside Welling, we also cover Bexley (2 miles), Eltham (3 miles), Thamesmead (3 miles).
Guide prices for roof lantern replacement in Welling
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?
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?
- 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 Welling: questions
How do I get a price for roof lantern replacement in Welling?
Send a few photos of the lantern and the problem, with your Welling postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Can you repair a lantern someone else installed in Welling?
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.
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.
Will you tell me if repair is enough?
Yes. We'd rather do a repair that works than sell a lantern you don't need.
Other lantern repairs in Welling
- Roof lantern leak repairs in Welling
- Roof lantern resealing in Welling
- Flat roof junction and flashing repairs in Welling
- Aluminium roof lantern repairs in Welling
- Opening vent and actuator repairs in Welling
- Flat rooflight and skylight repairs in Welling
Roof lantern replacement near Welling
More about roof lantern replacement · All roof lantern repairs in Welling