In Sittingbourne, as everywhere, many uPVC roof lanterns have an aluminium core with uPVC cladding and cappings. Send photos and we'll tell you what we think has failed.

What you might be seeing
- Yellowed or brittle end caps
- Cracked cappings or ridge covers
- Leaks at the ridge or eaves
What usually causes it?
UV ageing
uPVC components become brittle and crack after years of sun.
Clip failure
Clip-on cappings can lose their grip and lift.
Roof lanterns in Sittingbourne
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.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
From Maidstone to Sittingbourne is roughly 11 miles — all part of the Kent area we cover.
Close by, we also cover Faversham (7 miles), Gillingham (9 miles), Chatham (9 miles).
Guide prices for uPVC roof lantern repairs in Sittingbourne
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?
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.
uPVC roof lantern repairs in Sittingbourne: questions
Can you repair a lantern someone else installed in Sittingbourne?
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 Sittingbourne do you cover?
As well as Sittingbourne, we cover nearby Faversham, Gillingham, Chatham, Rochester and the rest of Kent.
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 Sittingbourne
- Roof lantern resealing in Sittingbourne
- Upstand and kerb repairs in Sittingbourne
- Condensation diagnosis and fixes in Sittingbourne
- Cleaning and maintenance in Sittingbourne
- Roof lantern replacement in Sittingbourne
- Commercial roof lantern repairs in Sittingbourne
uPVC roof lantern repairs near Sittingbourne
More about uPVC roof lantern repairs · All roof lantern repairs in Sittingbourne