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RooflightInstallers.co.uk
Perth · PH2 · Perth & Kinross

Rooflight glass replacement in Perth

A misted or cracked rooflight does not always need a whole new unit. If the frame is sound and the seals around it are dry, we can often measure for a new sealed glass unit and fit it into the existing frame in Perth. The first visit is to measure and check the frame, which is charged, with the price confirmed before you book. The new glass is then made to size, and a second visit fits it. If the frame itself has failed, we tell you that a replacement rooflight makes more sense.

Guide price from £445 · Supply & fit of the glass

Perth guide prices

Small sealed unit

£445 – £795including VAT at 20%

Misted or cracked unit up to about 1 m² measured, made and refitted

Medium sealed unit

£795 – £1,295including VAT at 20%

Units up to about 2 m², or toughened and laminated

Large or specialist

£1,295 – £2,395including VAT at 20%

Triple glazed, solar-control or heavy units needing lifting gear

Guide ranges. The first visit is charged and priced before booking; any new glass is priced in writing before work starts. Scaffold, access towers or a crane are priced separately if the job needs them, and building warrant fees, where a job needs them, are shown as their own line.

Fitting across Perth and nearby

Distance is rarely the deciding factor. A roof in Glenrothes, 17 miles from Perth, gets the same survey, the same written quote and the same fitting process as one in PH2, PH1 and PH14. What changes the price is the job itself: size of unit, roof type, access and lifting. Dundee, around 18 miles out, is treated the same way.

What the job includes

  • Measuring visit to size the glass and identify its make-up
  • Old glass taken out safely and removed from site
  • Frame rebate cleaned and checked for damage, corrosion or failed seals
  • Weight and lifting — We plan how a heavy pane gets onto the roof and into the frame.
  • Condensation or a failed seal — We confirm whether the mist is inside the sealed unit or on the room-side surface.

How the glass is replaced

The second visit is the quick one. With the new unit made to size, the fitters take the old glass out, check the frame and drainage paths, and set the new glass on packers so it sits square and drains properly. Seals and cappings are renewed where needed, the area is cleared, and you are shown what was done.

Do you need permission in Perth?

In Scotland, forming a new rooflight opening needs a building warrant from the council, because the roof is being altered. Replacing an existing rooflight complete with its frame doesn't need a warrant, but the new unit still has to meet the building standards, including the 1.6 W/m²K energy figure for windows and rooflights in alterations. Planning depends on the house and where it is: householder permitted development rights don't apply in conservation areas, and listed buildings need consent. We confirm this with you before quoting.

What to send us

Photos of the problem glass from inside and out, a rough width and length, and whether the rooflight opens or is fixed are enough to price the first visit. Add the postcode and how the roof is reached, and tell us if more than one unit has misted.

Common questions in Perth

How long does new rooflight glass take?

The new sealed unit is made to the measured size, so there is a gap between the measuring visit and the fitting visit while it is produced. We give you the expected timing when we price the glass, and book the fitting once it has arrived.

Is the measuring visit charged?

Yes. The first visit measures the existing glass and checks the frame, and it is charged. We confirm that price before you book. The fitting of the new glass is then priced in writing, so you see the full cost before anything is ordered.

Is new glass or a new rooflight better value?

If the frame, gaskets and drainage are sound, new glass is usually the cheaper fix. If the frame is cracked, distorted or leaking at the kerb, a full replacement is better value. After the measuring visit we price both so you can compare.

Got a leak or a misted unit in Perth? Send photos first and we will tell you what the visit costs before booking.

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Glass replacement in Perth

Send photos of the problem and we will tell you what a visit costs before booking.

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