Australia's National Retrofit Insulation Provider

Home upgrades with the Insulation Experts.

Watch our team perform full old insulation removal & Knauf Earthwool® installation. EEC Certified professionals. Over 75,000 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
1,200+ reviews
2014
EstablishedNational Australian Operations
75k+
Homes InsulatedAcross WA, VIC, QLD & NSW
90+
Trained ProfessionalsDocumented on the current site
1,200+
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.

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

Insulation Removal

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

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.

View Details & R-Values
Underfloor Insulation
Batts & Spray FoamR2.5 - R4.0

Underfloor Insulation

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

View Details & R-Values
Spray Foam
High PerformanceComplete Air Seal

Spray Foam

Certified polyurethane Insulation applicators for complex spaces.

View Details & R-Values
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.

Click your region to contact local depot:
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.

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
Our Proven Retrofit Process

Our Four-Step Method

From your initial free on-site thermal assessment to complete industrial old insulation removal and certified Earthwool® installation, every project follows strict national quality standards.

Homeowner completing a free online insulation assessment
Metro & Outer Metro Areas

Free On-Site Assessment

Our certified insulation specialist conducts a thorough visual inspection of your roof cavity, subfloor structures, timber spacing, and electrical clearances.

Site Visit & Assessment
Old ceiling insulation being removed from a roof cavity
25HP Negative-Pressure Vacuum

Industrial old insulation removal

We safely remove old dusty blow-in cellulose, decomposed fiberglass, pest droppings, and ceiling debris directly into sealed truck hoppers with zero interior dust contamination.

Sealed Truck Hopper System
Installer placing Earthwool ceiling batts between joists
Ceiling Batts & Custom Thermal Systems

Insulation Installation

Expert installation of high-performance insulation products—including friction-fitted ceiling batts between joists and specialized thermal solutions tailored to your property.

AS1530.1 Fire Rated
Installers reviewing quality-audit documentation on site
Certified Compliance Certificate

Quality Audit & 50-Year Warranty

Complete quality inspection, thorough site clean-up, and issuance of your 50-year manufacturer warranty and EEC compliant documentation when required.

50-Year Warranty Guarantee
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

Fire Safety & Low Dust

Non-combustible AS1530.1 rating. Certified EUROCLASS A1 fire safe. 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.

Interactive Savings Estimator

Calculate your home's thermal ROI.

Adjust home specifications and select your new insulation R value to calculate your estimated investment range and annual savings.

180 m²
60 m² (Townhouse)180 m² (Standard)350 m² (Estate)
Rec: R5.0
Estimated Annual Savings*Estimated ROI Span
$1,355 / year*

*Based on current Australian electricity and gas energy tariff rates and typical thermal losses.

Selected R ValueR5.0
Est. Payback~2.7 Yrs
CO₂ Offset
0.4 Tons/yr
Est. Investment Range$3,600 – $4,140(Estimated total for 180m²)

*Disclaimer: All calculations, investment ranges, payback spans, annual energy savings, and CO₂ offset estimates provided above are indicative reference points only. Final pricing and thermal savings depend on individual home architecture, existing roof space accessibility, local climate zones, and current Australian electricity/gas energy tariff rates. A certified on-site roof inspection is required for an exact binding quote.

Expert Answers

Frequently Asked Retrofit Questions

Everything you need to know about roof vacuuming, thermal performance ratings, ISO compliance, fire safety, 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
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.
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
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
Prompt response during business hours No-obligation assessment

Get your free quote

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