Cavity Wall Insulation
We pump insulation into the walls of new and existing Australian homes, across NSW, QLD, VIC and WA.
Pumped Insulation
Bringing existing walls up to modern standards
Residential Cavity Wall Insulation
A double brick cavity without insulation is traditionally rated at R0.6. With Supafil® CarbonPlus, a standard 50mm double brick cavity improves to a wall system rating of R1.9.
The insulation is pumped into the cavity through small drill holes, making it a practical upgrade for existing walls.
Why choose this solution
R0.6 to R1.9
For a standard 50mm double brick cavity with Supafil® CarbonPlus.
Installed from outside the cavity
Insulation is pumped in through small drilled holes.
CodeMark™ certified
Certified to meet provisions of the Australian Building Code.
Thermal comfort
Sprayed directly to the substrate for continuous insulation, helping keep temperatures stable.
Performance varies with the product, thickness, building and installation. Fire performance is product specific: see our fire performance page.
More about cavity wall insulation
Servicing NSW, QLD, VIC, & WA
Bringing Australian homes up to modern energy efficiency standards.
Internal Walls
External Walls
Market leading solution improving energy and Rvalue rating.
Fills the entire cavity, reducing vibrations and absorbs flanking noise.
Services & Applications
Raked Ceilings
Up to 35% [1] of heat loss or gain in the home is through uninsulated cavity walls.
A double brick cavity without insulation is thermally rated traditionally at R0.6. With Supafil® CarbonPlus, a standard 50mm double brick cavity will improve wall system thermal rating to R1.9.
According to the National House Energy Rating Scheme this can improve star rating by up to +1.2 [1].
This increase in thermal efficiency makes a home more sustainable; reducing power consumption needs and reducing the home’s carbon footprint [2].
[1] Based on Indicative Housing Energy Rating Software (HERS) Heating and Cooling loads for new and existing homes in NatHERS Climate Zone 13, single story cavity masonry, different orientations, R2 & R4 ceiling insulation.
[2] Based on testing completed by the manufacturer certified by Building Code Australia 30057.
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Related services
Servicing Projects Across WA, VIC, QLD & NSW
Our spray foam crews operate locally from Perth Metro, Melbourne, Brisbane and Sydney.
Perth & WA Regions
Areas we cover
- Perth Metro Area (North & South of River)
- Joondalup, Wanneroo, Stirling & Coastal Suburbs
- Fremantle, Melville, Rockingham & Mandurah
- Hills Region, Midland, Kalamunda & Swan Valley
- Bunbury & South West Regional WA
Same-day on-site assessments available across Perth metro
Melbourne & VIC Regions
Areas we cover
- Greater Melbourne & Inner City Ring
- Northern Suburbs (Preston, Brunswick, Whittlesea)
- Eastern & South Eastern Suburbs (Bayside, Monash)
- Western Suburbs (Werribee, Sunshine, Point Cook)
- Geelong, Mornington Peninsula & Yarra Ranges
24-hour response for Melbourne & Regional VIC enquiries
Brisbane & QLD Regions
Areas we cover
- Greater Brisbane & Inner City Suburbs
- Moreton Bay, Logan City & Redland Coast
- Gold Coast & Sunshine Coast Regions
- Ipswich, Toowoomba & Regional QLD
Rapid dispatch across Greater Brisbane & South East Queensland
Sydney & NSW Regions
Areas we cover
- Greater Sydney & Western Sydney Hubs
- South West Sydney, Liverpool & Campbelltown
- North Shore, Northern Beaches & Hills District
- Wollongong, Central Coast & Regional NSW
Dedicated local crew serving Sydney Metro & Regional NSW
Located outside major metro zones?
We work on rural, coastal, agricultural and remote mining projects. Tell us about the site and we'll assess what's needed to get a crew there.
Frequently Asked Spray Foam Questions
What you need to know about foam types, R-values, where spray foam can go, safety and fire performance.
Our team can talk through your substrate, access, climate and the data sheets you need.
Ask Our Technical TeamWhat is the difference between closed cell and open cell spray foam?
What R-value can spray foam achieve?
Where can spray foam insulation be used?
Is spray foam safe once it has cured?
Is spray foam insulation fire rated?
Can I spray foam my property myself?
Can you paint spray foam insulation?
How much does spray foam insulation cost?
Ready for a seamless experience?
Our spray foam consultants assess your property and recommend a practical, cost-effective solution for comfort and energy performance.
Call us
1300 614 134Email us
info@sprayfoamaustralia.com.auGet your free quote
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