We carry out uPVC roof lantern repairs in Truro and across the TR1 area. Many uPVC roof lanterns have an aluminium core with uPVC cladding and cappings.

What you might be seeing
- Yellowed or brittle end caps
- Cracked cappings or ridge covers
- Rattling or whistling in wind
What usually causes it?
Clip failure
Clip-on cappings can lose their grip and lift.
Blocked drainage
As with all lanterns, blocked eaves drainage causes overflow.
Roof lanterns in Truro
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.
If you're just outside Truro, we also cover Falmouth (8 miles), Redruth (8 miles), Newquay (10 miles).
Guide prices for uPVC roof lantern repairs in Truro
Typical range: £175–£595 ex VAT, which is £210–£714 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.
uPVC roof lantern repairs in Truro: questions
How do I get a price for uPVC roof lantern repairs in Truro?
Send a few photos of the lantern and the problem, with your Truro postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Truro do you cover?
As well as Truro, we cover nearby Falmouth, Redruth, Newquay, Camborne and the rest of Cornwall.
What does a uPVC lantern repair cost?
Usually £175–£595 ex VAT per lantern, confirmed in writing before work starts.
Is it worth repairing an old uPVC lantern?
If the glass is sound and the frame isn't distorted, a repair is usually far cheaper than replacement.
Other lantern repairs in Truro
- Upstand and kerb repairs in Truro
- Flat roof junction and flashing repairs in Truro
- Timber roof lantern repairs in Truro
- Flat rooflight and skylight repairs in Truro
- Cleaning and maintenance in Truro
- Roof lantern replacement in Truro
uPVC roof lantern repairs near Truro
More about uPVC roof lantern repairs · All roof lantern repairs in Truro