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Double Glazing Prices Australia
Prices include GST. Double glazing installations must comply with AS 2047 (windows and external glazed doors) and NCC energy efficiency requirements. Building approval may be required for frame replacements or structural modifications.
Double Glazing Prices by Service Type — Australia
Prices include GST. Double glazing installations must comply with AS 2047 (windows and external glazed doors) and NCC energy efficiency requirements. Building approval may be required for frame replacements or structural modifications.
| Service | Unit | From | Average | Up to |
|---|---|---|---|---|
| 🪟Standard Window Retrofit Remove existing single-glazed glass and retrofit double-glazed insulated glass unit (IGU) into existing timber or aluminium frame — standard window up to 1.2m x 1.2m | /window | $400 | $580 | $800 |
| 🪟Large Window Retrofit Retrofit double-glazed IGU into large window opening (1.2m x 1.8m or larger) — includes removal of existing glass, new IGU, and sealing | /window | $700 | $1,020 | $1,400 |
| 🚪Sliding Door Double Glazing Supply and install double-glazed sliding door unit — includes removal of existing door, new frame and IGU, tracks, hardware, and weathersealing | /door | $1,200 | $1,800 | $2,500 |
| 🏠Bay Window Conversion Convert existing bay window to double glazing — includes custom IGUs for angled panels, frame modifications, and full weathersealing | /window | $1,500 | $2,200 | $3,000 |
| 🏡Whole House (2-bed) Double glaze all windows in a 2-bedroom home (typically 8–12 windows) — includes removal of existing glass, new IGUs, and sealing throughout | /house | $6,000 | $8,800 | $12,000 |
| 🏡Whole House (3-bed) Double glaze all windows in a 3-bedroom home (typically 12–18 windows) — includes removal, new IGUs, sealing, and any frame modifications | /house | $10,000 | $14,500 | $20,000 |
| 🏡Whole House (4+ bed) Double glaze all windows in a 4+ bedroom home (typically 18–25+ windows) — includes full survey, removal, new IGUs, frame work, and sealing | /house | $15,000 | $22,000 | $30,000 |
| 🔲Secondary Glazing Install a secondary glazing panel on the interior side of an existing window — retains original window, adds insulation and noise reduction without replacing glass | /window | $250 | $360 | $500 |
| 🔇Acoustic Glazing Upgrade Upgrade to acoustic-rated double glazing with laminated glass and wider air gap — provides superior noise reduction (up to 40dB) for homes near roads, airports, or rail | /window | $600 | $880 | $1,200 |
| ☀️Low-E Coating Upgrade Add low-emissivity coating to double-glazed units — reduces heat transfer through the glass, improves energy efficiency, and reduces UV damage to furnishings | /sqm | $50 | $95 | $150 |
| 💨Argon Gas Fill Upgrade Upgrade from standard air fill to argon gas fill between glass panes — improves thermal insulation by approximately 15% compared to air-filled units | /window | $30 | $52 | $80 |
| 🔧uPVC Frame Replacement Remove existing window frame and replace with new uPVC frame fitted with double-glazed IGU — includes removal, new frame, IGU, hardware, and full weathersealing | /window | $800 | $1,250 | $1,800 |
Double Glazing Prices by City
Click a city for detailed local pricing and tips
Sydney
New South Wales · 5.3M
From $460
Newcastle
New South Wales · 320K
From $400
Wollongong
New South Wales · 310K
Pricing available
Central Coast
New South Wales · 340K
Pricing available
Melbourne
Victoria · 5.1M
From $440
Geelong
Victoria · 270K
Pricing available
Ballarat
Victoria · 115K
Pricing available
Bendigo
Victoria · 100K
Pricing available
Brisbane
Queensland · 2.6M
From $400
Gold Coast
Queensland · 680K
From $420
Sunshine Coast
Queensland · 350K
Pricing available
Cairns
Queensland · 160K
Pricing available
Townsville
Queensland · 195K
Pricing available
Adelaide
South Australia · 1.4M
From $380
Mount Gambier
South Australia · 30K
Pricing available
Perth
Western Australia · 2.1M
From $420
Mandurah
Western Australia · 100K
Pricing available
Bunbury
Western Australia · 75K
Pricing available
Hobart
Tasmania · 240K
From $420
Launceston
Tasmania · 90K
Pricing available
Canberra
ACT · 460K
From $440
Darwin
Northern Territory · 150K
From $460
Alice Springs
Northern Territory · 25K
Pricing available
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Double glazing prices in Australia range from $30 for an argon gas fill upgrade to $30,000 for a whole house (4+ bedroom) double glazing project. Prices include GST. Double glazing installations must comply with AS 2047 (windows and external glazed doors) and NCC energy efficiency requirements. Building approval may be required for frame replacements or structural modifications.
The most common double glazing / window retrofit options in Australia include standard window retrofits, large window retrofits, sliding door double glazing, bay window conversions, whole-house packages, secondary glazing, acoustic glazing upgrades, Low-E coating, argon gas fill, and uPVC frame replacements.
Retrofit existing frames rather than replacing them to save 40–60%. Do the whole house at once for volume discounts of 10–15%. Choose standard double glazing over acoustic unless noise is a specific problem. Check government energy efficiency rebates. Compare at least three quotes. Prices include GST. Double glazing installations must comply with AS 2047 (windows and external glazed doors) and NCC energy efficiency requirements. Building approval may be required for frame replacements or structural modifications.
In most cases, like-for-like glass replacement does not require permits. However, frame replacements that alter the external appearance, or work on heritage-listed properties, may require approval. Requirements vary by municipality. Always check with your local authority before commencing work. Prices include GST. Double glazing installations must comply with AS 2047 (windows and external glazed doors) and NCC energy efficiency requirements. Building approval may be required for frame replacements or structural modifications.
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