Many uPVC roof lanterns have an aluminium core with uPVC cladding and cappings. Send photos from Thetford (IP24) and we'll tell you which it is — with the price agreed in writing before any work.
Is it time for uPVC roof lantern repairs?
- Cracked cappings or ridge covers
- Green algae along the bars
- Leaks at the ridge or eaves
What usually causes it?
UV ageing
uPVC components become brittle and crack after years of sun.
Blocked drainage
As with all lanterns, blocked eaves drainage causes overflow.
Roof lanterns in Thetford
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.
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.
Thetford is around 27 miles from Norwich, and both are within our Norfolk coverage.
If you're just outside Thetford, we also cover Bury St Edmunds (12 miles), Newmarket (19 miles), Stowmarket (19 miles).
How much should it cost?
Guide price for uPVC roof lantern repairs: £175–£595 ex VAT (£210–£714 inc 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 Thetford: questions
Can you repair a lantern someone else installed in Thetford?
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.
Which places near Thetford do you cover?
As well as Thetford, we cover nearby Bury St Edmunds, Newmarket, Stowmarket, Ely and the rest of Norfolk.
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.
Can you change my uPVC lantern's colour?
Yes, with a respray suitable for uPVC.
Other lantern repairs in Thetford
- Ridge and hip repairs in Thetford
- Upstand and kerb repairs in Thetford
- Flat roof junction and flashing repairs in Thetford
- Cracked lantern glass replacement in Thetford
- Opening vent and actuator repairs in Thetford
- Orangery lantern repairs in Thetford
uPVC roof lantern repairs near Thetford
More about uPVC roof lantern repairs · All roof lantern repairs in Thetford