Misted glass unit replacement in Sunbury-on-Thames

In Sunbury-on-Thames, as everywhere, if a roof lantern pane looks cloudy or wet between the two layers of glass, the sealed unit has failed and moisture has got inside. Send photos and we'll tell you what we think has failed.

Roof lantern seen from inside with one misted double glazed pane between clear panes

Signs you need misted glass unit replacement

Fog, droplets or white bloom between the panes
One pane looks hazier than the others
Misting that comes and goes with the weather

What usually causes it?

Water sitting on the edge

If the unit's edge sits in water because the eaves don't drain, the seal fails sooner.

Movement and age

Thermal movement and age wear the seal; units at the bottom of the lantern often go first.

Covering Sunbury-on-Thames 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.

We cover Sunbury-on-Thames as part of Surrey, about 13 miles from Guildford.

We also cover nearby Walton-on-Thames (1 mile), Hampton (2 miles), Hanworth (3 miles).

Guide prices for misted glass unit replacement in Sunbury-on-Thames

Guide price, per glass unit£245–£595 ex VAT£294–£714 inc VAT

Guide price for misted glass unit replacement: £245–£595 ex VAT (£294–£714 inc VAT), per glass unit. 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.

Misted glass unit replacement in Sunbury-on-Thames: questions

Do you need to visit to price misted glass unit replacement?

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 Sunbury-on-Thames do you cover?

As well as Sunbury-on-Thames, we cover nearby Walton-on-Thames, Hampton, Hanworth, Ashford, Surrey and the rest of Surrey.

How much does a misted lantern unit cost to replace?

Usually £245–£595 ex VAT per unit depending on size, glass spec and access, confirmed in writing before work starts.

How long does a replacement unit take?

Units are made to measure, so there's a lead time between measuring and fitting. Fitting itself is usually a short visit.

Other lantern repairs in Sunbury-on-Thames

Misted glass unit replacement near Sunbury-on-Thames

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