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Insulation Prices Australia
Prices per m² include GST. R-values: ceiling R4.0–R6.0, walls R2.0–R2.5, underfloor R2.5. NCC compliance required.
Insulation Prices by Service — Australia
Prices per m² include GST. R-values: ceiling R4.0–R6.0, walls R2.0–R2.5, underfloor R2.5. NCC compliance required.
| Service | From | Average | Up to |
|---|---|---|---|
| 🏠Ceiling Batt Insulation Ceiling batt insulation supply and install — NCC compliant R-values | $7/m² | $11/m² | $15/m² |
| 🧱Wall Batt Insulation Internal wall batt insulation fitted between studs | $10/m² | $15/m² | $20/m² |
| 🏗️Underfloor Insulation Underfloor insulation batts stapled between floor joists | $15/m² | $22/m² | $30/m² |
| 💨Open Cell Spray Foam Open cell spray foam insulation — flexible, good for irregular cavities | $18/m² | $26/m² | $35/m² |
| 🔒Closed Cell Spray Foam Closed cell spray foam — high R-value, moisture resistant | $30/m² | $42/m² | $55/m² |
| 🌬️Blown-In Insulation Blown-in loose-fill insulation for ceilings and hard-to-reach spaces | $10/m² | $16/m² | $22/m² |
| 🪟Cavity Wall Insulation Cavity wall fill insulation — injected or blown into wall cavities | $15/m² | $22/m² | $30/m² |
| ☀️Roof Sarking / Radiant Barrier Reflective roof sarking or radiant barrier — reduces summer heat gain | $8/m² | $11/m² | $15/m² |
| 🔇Acoustic / Soundproofing Acoustic insulation batts for sound reduction between rooms | $20/m² | $32/m² | $45/m² |
| 🗑️Old Insulation Removal Remove and dispose of old or contaminated insulation | $5/m² | $8/m² | $12/m² |
| ⬆️Top-Up / Top-Off Existing Add insulation over existing batts to increase R-value | $5/m² | $7/m² | $10/m² |
| 🏢External Wall Cladding Insulation External wall insulation system with render or cladding finish | $25/m² | $37/m² | $50/m² |
Insulation Prices by City
Click a city for detailed local pricing and tips
Sydney
New South Wales · 5.3M
From $8/m²
Newcastle
New South Wales · 320K
Pricing available
Wollongong
New South Wales · 310K
Pricing available
Central Coast
New South Wales · 340K
Pricing available
Melbourne
Victoria · 5.1M
From $5/m²
Geelong
Victoria · 270K
Pricing available
Ballarat
Victoria · 115K
Pricing available
Bendigo
Victoria · 100K
Pricing available
Brisbane
Queensland · 2.6M
From $7/m²
Gold Coast
Queensland · 680K
Pricing available
Sunshine Coast
Queensland · 350K
Pricing available
Cairns
Queensland · 160K
Pricing available
Townsville
Queensland · 195K
Pricing available
Adelaide
South Australia · 1.4M
From $5/m²
Mount Gambier
South Australia · 30K
Pricing available
Perth
Western Australia · 2.1M
From $5/m²
Mandurah
Western Australia · 100K
Pricing available
Bunbury
Western Australia · 75K
Pricing available
Hobart
Tasmania · 240K
Pricing available
Launceston
Tasmania · 90K
Pricing available
Canberra
ACT · 460K
Pricing available
Darwin
Northern Territory · 150K
Pricing available
Alice Springs
Northern Territory · 25K
Pricing available
Browse by Region
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Insulation in Australia ranges from $5/m² for basic ceiling batts to $55/m² for external wall insulation systems. Prices per m² include GST. R-values: ceiling R4.0–R6.0, walls R2.0–R2.5, underfloor R2.5. NCC compliance required.
The most common types in Australia are batt insulation (ceiling and walls), blown-in loose fill, spray foam (open and closed cell), cavity wall insulation, and external wall insulation systems. Each has different cost, performance, and application characteristics.
R-value requirements vary by climate zone. Prices per m² include GST. R-values: ceiling R4.0–R6.0, walls R2.0–R2.5, underfloor R2.5. NCC compliance required. A professional installer can recommend the right R-value for your location and building type.
Check state and territory energy efficiency programs for potential rebates — there is currently no federal insulation rebate for existing homes in Australia.
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