Secondary Glazing Cost in Perth (2026)
Perth fits secondary glazing to hold the Mediterranean heat out of a double-brick home, with freight the quiet variable on anything made over east.
Your secondary glazing details
Your estimate sits within the typical range.
Your estimate sits within the typical range.
For noise, a larger air gap between the original and secondary pane matters more than for thermal insulation, which is why acoustic secondary glazing uses a wider cavity. It is very effective against traffic and aircraft noise.
Magnetic or removable acrylic secondary panels are the cheapest and are DIY-friendly, good for renters or a budget. Fixed or sliding glass panels look better and perform best but cost more.
Secondary glazing keeps your existing windows and adds an internal pane, ideal for heritage homes and renters who cannot replace windows. It is especially effective for noise, often more than double glazing for sound.
Ways to save
- Magnetic or acrylic secondary panels are a cheap, renter-friendly, often DIY option.
- Treat the noisiest or coldest windows first if budget is limited.
- For heritage homes, secondary glazing keeps the original windows intact while improving comfort.
How we estimate this
Secondary glazing in Australia typically costs around $400 to $800 per window in 2026 for fixed or sliding glass panels, less for magnetic or acrylic panels. A whole house of 8 to 12 windows often runs $4,000 to $12,000.
Pricing reviewed: October 2026.
What a secondary glazing costs in Perth
A second pane set inside an existing window traps an insulating layer of air, and in Perth's dry Mediterranean climate the job is bought mainly to keep the hot summer sun from loading up a room and the air-conditioning. West-facing glass takes a beating through the long afternoons, and a coated secondary pane cuts both the heat and the glare while the original window stays in place. The cost is set per window by the size, the glass and the frame, so a large living-room expanse of panes is the biggest line in a Perth quote.
Perth's double-brick homes hold heat well once it is inside, so stopping the gain at the glass matters more here than in a lightweight build, and that is where secondary glazing earns its keep. The city's isolation is the cost wildcard: a standard panel is made locally, but a specialty acoustic or coated unit brought across from the eastern states carries freight and a longer lead time. Sandy soils and a stable climate mean the surrounding window rarely moves, which keeps the fit clean.
Fitting the panel is a glazier's or secondary-glazing specialist's job, not a licensed building trade, so no building licence applies while the existing opening is untouched, in Western Australia under WA Building Services for any structural side; a licensed builder is only involved if the reveal is altered. Nothing outside changes, so a heritage or character home keeps its approved facade. Price a Perth job by the window, the glass spec and the pane count, with freight added on specialty units.
Compare against the national picture: Secondary Glazing Cost in Australia →
Secondary Glazing Cost in other cities
Frequently asked questions
Do I need a licence for secondary glazing in Perth?
No. It is fitted by a glazier or secondary-glazing specialist rather than a licensed building trade, as long as the existing window opening is not structurally altered, in Western Australia under WA Building Services for any building side. A licensed builder is only needed if the reveal is changed.
Does secondary glazing help against Perth's summer heat?
Yes. The trapped air layer and a coated second pane slow the heat and glare coming through west-facing glass in the dry Mediterranean summer, easing the air-conditioning load in a heat-retaining double-brick home.
Does Perth's isolation affect the price?
It can. A standard panel is made locally, but a specialty acoustic or coated unit freighted from the eastern states carries extra cost and a longer lead time, which is the main thing that moves a Perth quote beyond the glass itself.
How is a Perth secondary-glazing job priced?
Per window, on the pane size, the glass thickness and the frame, with large living-room expanses costing most. A locally made standard panel is keenly priced; freight is the variable on anything specialty brought over east.