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Greater London · TW7

uPVC roof lantern repairs in Isleworth

We cover Isleworth and the wider Greater London area for uPVC roof lantern repairs. In short, we replace brittle end caps, cappings and gaskets and reseal uPVC lanterns — and you know the price before any work begins.

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In Isleworth, 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.

Weathered white uPVC roof lantern on a single-storey rear extension

What you might be seeing

  • Yellowed or brittle end caps
  • Cracked cappings or ridge covers
  • Green algae along the bars

Common causes we find

Clip failure

Clip-on cappings can lose their grip and lift.

Blocked drainage

As with all lanterns, blocked eaves drainage causes overflow.

Covering Isleworth and nearby

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.

London's extensions are often tight to neighbouring walls and roofs. Where a repair needs access over a neighbour's property, we'll tell you in advance so you can arrange it.

Isleworth is around 9 miles from Westminster, and both are within our Greater London coverage.

Neighbouring places we cover include Hounslow (1 mile), Heston (2 miles), Richmond (2 miles).

Guide prices for uPVC roof lantern repairs in Isleworth

Guide price, per lantern£175–£595 ex VAT£210–£714 inc VAT

Most uPVC roof lantern repairs jobs come in between £175 and £595 ex VAT (£210–£714 including 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?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

uPVC roof lantern repairs in Isleworth: questions

Can you repair a lantern someone else installed in Isleworth?

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 Isleworth do you cover?

As well as Isleworth, we cover nearby Hounslow, Heston, Richmond, Southall and the rest of Greater London.

What does a uPVC lantern repair cost?

Usually £175–£595 ex VAT per lantern, confirmed in writing before work starts.

Can you change my uPVC lantern's colour?

Yes, with a respray suitable for uPVC.

Other lantern repairs in Isleworth

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