In Windsor, 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
- Green algae along the bars
- Leaks at the ridge or eaves
Why it happens
UV ageing
uPVC components become brittle and crack after years of sun.
Clip failure
Clip-on cappings can lose their grip and lift.
About Windsor and the SL4 area
Most inland lantern leaks aren't storm damage; they're usually tired sealant, a lifted capping or blocked eaves drainage. All three are quick to find and fix once you know where to look.
We cover Windsor as part of Berkshire, about 16 miles from Reading.
We also cover nearby Slough (2 miles), Egham (4 miles), Staines (5 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?
In England, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations 2010, so we set out the route in writing first. 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 Windsor: questions
Do you need to visit to price uPVC roof lantern repairs?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
Which places near Windsor do you cover?
As well as Windsor, we cover nearby Slough, Egham, Staines, Maidenhead and the rest of Berkshire.
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 Windsor
- Roof lantern leak repairs in Windsor
- Eaves beam and gutter repairs in Windsor
- Upstand and kerb repairs in Windsor
- Cracked lantern glass replacement in Windsor
- Condensation diagnosis and fixes in Windsor
- Roof lantern respraying in Windsor
uPVC roof lantern repairs near Windsor
More about uPVC roof lantern repairs · All roof lantern repairs in Windsor