Insulation removal and installation in Perth, Melbourne, Sydney and Brisbane

Home upgrades with the Insulation Experts.

Watch our team perform full old insulation removal & Knauf Earthwool® installation. EEC Certified professionals. Over 45,000 Australian homes retrofitted since 2014.

Currently accepting bookings.
On-Site
Tile Roof Retrofit

Extraction & Batts

1. Old blown-in removal via vacuum
2. Earthwool® batts install
ISO 9001 • 45001 • 14001
EEC Certified
Earthwool® ECOSE
50-Year Warranty
1,500+ reviews
2014
EstablishedNational Australian Operations
45k+
Homes InsulatedAcross WA, VIC, QLD & NSW
90+
Trained ProfessionalsDocumented on the current site
1,500+
ReviewsVerified Customer Feedback
Retrofit Insulation Services

We maximise the energy efficiency of your home.

Comprehensive residential retrofitting solutions designed to lower bills and increase comfort year-round. Click any service to view full specifications & R-values.

Ceiling Insulation
Most PopularR4.0 - R7.0

Ceiling Insulation

New insulation installs in ceilings, roofs, walls, and underfloors.

Local pages:Ceiling Insulation PerthCeiling Insulation BrisbaneCeiling Insulation SydneyCeiling Insulation Melbourne

View Details & R-Values
Insulation Removal
Essential PrepClean Ceiling Prep

Insulation Removal

We remove old batts, old blow-in, & vacuum clean ceilings.

Local pages:Insulation Removal PerthInsulation Removal BrisbaneInsulation Removal SydneyInsulation Removal Melbourne

View Details & R-Values
Double Brick Cavity Insulation
Double Brick RetrofitR2.5

Double Brick Cavity Insulation

Inject thermal insulation into double brick cavities without structural disruption.

Local pages:Double Brick Cavity Insulation PerthDouble Brick Cavity Insulation BrisbaneDouble Brick Cavity Insulation SydneyDouble Brick Cavity Insulation Melbourne

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Installer wearing a blue shirt, beanie and respirator fitting brown Earthwool batts between timber underfloor joists
Batts & Spray FoamR2.5 - R4.0

Underfloor Insulation

Eradicate cold floor drafts with high-performance Earthwool Batts or closed-cell Spray Foam.

Local pages:Underfloor Insulation PerthUnderfloor Insulation BrisbaneUnderfloor Insulation SydneyUnderfloor Insulation Melbourne

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Spray Foam
High PerformanceComplete Air Seal

Spray Foam

Certified polyurethane Insulation applicators for complex spaces.

Local pages:Spray Foam PerthSpray Foam BrisbaneSpray Foam SydneySpray Foam Melbourne

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Typical prices

Old insulation removal
typically $15–$30 per m²Covers vacuum extraction of old insulation, dust and debris from the roof space, and disposal.
New batts installed
typically $15–$30 per m²Covers supply and installation of new Knauf Earthwool® batts, depending on R-value, roof size and pitch.

Indicative only. Your price is confirmed in writing after a free on-site assessment. Prices are the same in Perth, Melbourne, Sydney and Brisbane. Updated .

Insulation cost guide: worked examples and what changes the price →

National Retrofit Coverage

Serving Homeowners Across WA, VIC, QLD & NSW

Our removal of old insulation and Earthwool installation teams operate locally from Perth Metro, Melbourne, Brisbane and Sydney.

Western Australia depot

Perth & WA Regions

Insulation Extract Perth1/7 Competition Way, Wangara WA 6065(08) 9302 2699Monday to Friday, 7:30am–4pm. Site visits by appointment.

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

Perth services
Insulation Extract Melbourne7/11 Rockfield Way, Ravenhall VIC 3023(03) 7009 1718Monday to Friday, 7:30am–4pm. Site visits by appointment.

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

Melbourne services
New South Wales depot

Sydney & NSW Regions

Insulation Extract SydneyUnit 4/1 Powdrill Rd, Prestons NSW 2170(02) 7233 1266Monday to Friday, 7:30am–4pm. Site visits by appointment.

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

Sydney services
Regional & Inter-State Inquiries

Located outside major metro zones?

We regularly dispatch custom mobile vacuum extraction rigs and retrofitting teams for rural, coastal, and agricultural residential projects.

Email National Desk
Remote Community Social Housing Upgrade
Remote WA Community Work

Goldfields, Pilbara & Kimberley Region Upgrades

💡Did You Know?

2,500+ Social Housing Upgrades in Remote Communities

Insulation Extract has completed over 2,500 insulation upgrades in social housing across Broome, Kununurra, Derby, Kalgoorlie, and the Pilbara—including some of the most remote Indigenous communities in Australia.

Live · Updated 8am AEST daily

Where our team is working today

Every pin is one of our crews on a job today, in the suburbs we are in.

LiveToday

Loading today's crew locations.

How it works

Our Four-Step Method

Out with the old, in with the new. One team does it all, start to finish.

  1. Perth house ready for an insulation checkStep 1

    Free home check

    We inspect your roof space, subfloor and wiring, at no cost.

  2. Old insulation being vacuumed out of a roofStep 2

    Old insulation out

    Vacuumed straight into a sealed truck. No dust inside your home.

  3. Installer fitting Earthwool ceiling battsStep 3

    New insulation in

    Earthwool® glasswool batts are non-combustible to AS1530.1, fitted snug between the joists.

  4. Installers checking the finished jobStep 4

    Check and warranty

    We check the job, clean up and give you a 50-year warranty.

Metro and outer metro areas in WA, VIC, QLD and NSW
Why Retrofit Your Insulation

Transform your living environment.

Retrofitting your home with certified insulation is designed to deliver enhanced indoor comfort, potential energy bill reductions, and long-term thermal performance.

Up to 45% Potential Energy Savings

Significantly reduce heating and cooling energy consumption. High-performance thermal insulation acts as a barrier, helping reduce air conditioning load.

Typical payback estimate 3–5 years*

Year-Round Climate Comfort

Helps stabilize indoor temperatures by slowing heat flow through ceilings, walls and floors.

Helps equalize room temperatures

Acoustic Sound Dampening

High-density Earthwool batts help absorb external road noise, aircraft sound, ambient neighborhood noise, and heavy rainfall impact.

Project-dependent acoustic improvement

Earthwool® Batt Fire Safety

Glasswool/Earthwool® batts are non-combustible to AS1530.1. ECOSE® technology uses zero added formaldehyde for cleaner indoor air.

Hypoallergenic & low-dust formulation

*Disclaimer: Figures, savings, and thermal differences are indicative estimates only. Actual results will vary depending on house design, location, climate zone, existing materials, and individual energy consumption habits.

Insulation Extract old insulation removal and installation team
Australia's Master Insulation Installers

Dedicated Specialist Teams Across WA, VIC, QLD & NSW

ISO 9001 • 45001 • 14001 Certified
Powered byEnergy Efficiency Group

Insulation Extract is a series of local businesses with the strength of a national group behind it.

As part of the Energy Efficiency Group, our branches in Perth, Brisbane, Sydney and Melbourne share the training, buying power and safety systems of one national insulation group. That means better products, better pricing and a better finish in homes across WA, VIC, QLD and NSW.

  • Highly trained installersEvery crew is trained, inducted and audited to one national standard.
  • National buying powerWe buy insulation in volume across four states and pass the savings on.
  • Premium productsGenuine Knauf Earthwool® and trusted brands, never cheap substitutes.
  • Safety and quality firstISO 9001, 45001 and 14001 certified systems on every job.
  • Purpose-built equipmentHigh-powered extraction trucks keep removal fast, clean and dust free.
  • Local businesses, national backingBranches in Perth, Brisbane, Sydney and Melbourne, backed by a group that has insulated 45k+ homes.
Lifestyle Home Sanctuary with Earthwool Comfort

ECOSE® Technology

No added formaldehyde or artificial dyes. Bio-based binder.

Sustainable High Performance

Experience The Earthwool® Difference

We are dedicated to using Knauf Insulation's patented ECOSE® Earthwool insulation range resulting in a much softer, lower carbon and lower VOCs product compared to traditional Glasswool products made using formaldehyde.

  • Up to 45% more energy efficient home
  • Cleaner, healthier living environment
  • Award-winning recognized products

Knauf Earthwool® products we install

ProductUsed inR-valueThicknessBest for
Earthwool® Ceiling Batts R4.0CeilingR4.0190mmMild to moderate climate home retrofits
Earthwool® Space Saver Ceiling Batts R5.0CeilingR5.0210mmHigh-comfort retrofits in VIC, ACT, Southern NSW, WA & TAS
Earthwool® High Performance Ceiling Batts R6.0CeilingR6.0250mmAlpine regions, Melbourne, Ballarat, Canberra, and cold climate zones
Earthwool® Ultra Performance Ceiling Batts R7.0CeilingR7.0290mmCold climate zones and high-performance insulation upgrades
Earthwool® High Density SoundShield Wall Batts R2.7WallR2.7 HD90mmHome theatres, bedroom wall retrofits, and street-facing living rooms
Earthwool® Underfloor Batts R2.5UnderfloorR2.590mmQueensland, WA & Victorian timber floorboards on subfloor piers or stumps
Expert Answers

Frequently Asked Retrofit Questions

Everything you need to know about roof vacuuming, thermal performance ratings, ISO compliance, Earthwool® batt fire classification, and indoor air quality.

Have a specific property question?

Our technical assessors are available by phone to answer questions about ceiling access, solar panel clearances, or heritage timber roof structures.

Ask Our Technical Team

Why extract old blow-in insulation before laying new Earthwool batts?

Old blow-in cellulose and degraded fiberglass collect decades of fine dust, rodent feces, possum dander, and insect casings. Laying new batts over dirty or uneven blow-in creates air gaps (thermal bridges) that reduce performance by up to 30% and traps toxic allergens. Extraction cleans the roof joists, allowing new ECOSE® Earthwool batts to sit 100% flush.

How does the industrial vacuum extraction process work?

We set up a heavy-duty 25HP industrial vacuum truck outside your home. A flexible 150mm reinforced hose is routed directly into the roof cavity (usually via a roof tile or manhole). Technicians manually vacuum every ceiling bay under negative pressure, piping all dust and debris straight into a sealed containment truck without dust entering your living quarters.

What R-Value insulation rating is recommended for Australian homes?

For Southern VIC (Melbourne) and WA (Perth), the National Construction Code (NCC) recommends an installed ceiling R-value of R4.0 to R6.0. High thermal mass roofs or unshaded homes benefit most from R5.0 or R6.0 Earthwool batts for optimal energy reduction.

Are Knauf Earthwool® glasswool batts non-combustible to AS1530.1?

Yes. Knauf Earthwool® glasswool batts are non-combustible to AS1530.1. That classification applies to Earthwool® glasswool batts only — not to spray foam or other insulation types.

How long does a ceiling removal and new insulation installation take?

A standard 3-to-4 bedroom single-story home (approx 150-200 m²) typically takes 4 to 6 hours for a complete vacuum extraction, deep clean, optional sanitisation fog (if required), and lay down of new Earthwool ceiling batts. Work is finished in a single day.

Will extraction dust contaminate my home interiors?

No. Our extraction system uses high-powered industrial negative air pressure. The vacuum pulls air out of the roof cavity to the external truck bag. We also seal manholes with protective plastic sheeting during operation to protect your indoor air.

Do you offer government energy rebate guidance?

Yes. Our installations include standard Energy Efficiency Council (EEC) Certificates of Compliance. We assist homeowners in qualifying for state-based energy efficiency schemes and home retrofitting tax rebates where applicable in WA and VIC.
National retrofit consultations

Ready for a seamless experience?

Our insulation consultants assess your property and recommend a practical, cost-effective solution for comfort and energy performance.

Perth office

(08) 9302 2699

Melbourne office

(03) 7009 1718

Brisbane office

(07) 3088 6933

Sydney office

(02) 7233 1266

Email us

info@insulationextract.com.au
Prompt response during business hours No-obligation assessment

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