We're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed. We carry out roof lantern replacement across Cornwall, with a guide price from your photos and a fixed price in writing before any work starts.
Signs you need roof lantern replacement
- Distorted or sagging frame
- Rotten timber throughout
- Repeated leaks after previous repairs
What usually causes it?
Age
Older lanterns can't be brought up to modern performance with repairs alone.
Rot
Timber lanterns left unmaintained.
Roof lanterns in Cornwall
Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
What should you expect to pay for roof lantern replacement in Cornwall?
Most roof lantern replacement jobs come in between £1,995 and £4,995 ex VAT (£2,394–£5,994 including 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 Cornwall: questions
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.
Which towns in Cornwall do you cover?
All of Cornwall, including Truro, Redruth, Falmouth, St Austell, Camborne, Newquay. Rural and remote addresses are covered by arrangement.
How do I get a price for roof lantern replacement in Cornwall?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in Cornwall
- Eaves beam and gutter repairs in Cornwall
- Cracked lantern glass replacement in Cornwall
- Condensation diagnosis and fixes in Cornwall
- Cleaning and maintenance in Cornwall
- Urgent leak make-safe in Cornwall
- Orangery lantern repairs in Cornwall
Nearby areas
- Roof lantern replacement in Devon
- Roof lantern replacement in Somerset
- Roof lantern replacement in Bristol
- Roof lantern replacement in Dorset
- Roof lantern replacement in Wiltshire
More about roof lantern replacement · All roof lantern repairs in Cornwall