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Perth and Kinross · PH1

Misted glass unit replacement in Perth

Got a misted pane in Perth? We measure, order and fit replacement sealed units for misted panes, keeping the rest of the lantern. Send photos for a free guide price — you'll get a fixed price in writing before any work starts.

Get a guide priceCall 0800 088 6248

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 from Perth (PH1) and we'll tell you which it is — with the price agreed in writing before any work.

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

Is it time for misted glass unit replacement?

  • Fog, droplets or white bloom between the panes
  • One pane looks hazier than the others
  • Water marks or tide lines inside the unit

Common causes we find

Edge seal failure

Every sealed unit has an edge seal and desiccant. Once the seal fails, humid air gets in and the desiccant saturates.

Movement and age

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

Roof lanterns in Perth

Snow and ice sitting at the eaves can block a lantern's drainage and push water back under the glass as it melts. If your lantern leaks after a thaw rather than after rain, tell us — it points to the eaves and kerb.

Neighbouring places we cover include Auchterarder (13 miles), Kinross (13 miles), Blairgowrie (14 miles).

Guide prices for misted glass unit replacement in Perth

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

Most misted glass unit replacement jobs come in between £245 and £595 ex VAT (£294–£714 including 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 Scotland?

Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Scotland. Replacing the whole lantern or enlarging the opening is different and falls under the Building (Scotland) Regulations 2004; we confirm in writing which route applies before any replacement. Listed buildings in Scotland need listed building consent from the planning authority for alterations, with Historic Environment Scotland guidance; check before changing a lantern on a listed property.

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.

Misted glass unit replacement in Perth: questions

Can you repair a lantern someone else installed in Perth?

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 Perth do you cover?

As well as Perth, we cover nearby Auchterarder, Kinross, Blairgowrie, Crieff and the rest of Perth and Kinross.

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 Perth

Misted glass unit replacement near Perth

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