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Cost of Installing Insulation

Last updated: 23rd May 2019

On average, installing insulation costs around $45/hr. Quoted rates can vary due to specific factors like the size of your home and its current condition. The range of insulation price quotes range from approximately $40/hr to $56/hr.

Where do these prices come from?

All prices stated in this article are based on FY 2016 pricing data compiled by The figures resulted from a comprehensive analysis of quotes submitted by Insulation Installers on the site from July 2015 to July 2016.

Insulation prices from real customers

Riccardo from NSW
He had insulation installed in the roof and floors of his South Turramurra residence..
TOTAL COST: $6,000
Derek from NSW
He hired insulation specialists to install insulation in the attic of his home in Concord West.
TOTAL COST: $4,500
Nardia from NSW
She had insulation installed in the ceilings of her home. Her property is a 4-bedroom, 2-storey house located in Avalon Beach.
TOTAL COST: $4,500

Costs of common insulation installation jobs

 Insulation Task  Typical Quoted Prices
 Insulation installation for both a roof and a timber floor  $6,000
 Install insulation for a small ceiling  $3,000
 Install thermal insulation under the floorboards  $5,000
 Installing insulation for an attic  $4,500
 Spray-on sub-floor insulation  $3,300
 Replace old roof insulation with new ones  $3,200

How learning these factors can insulate hidden costs

One of the major factors that could affect the cost is the location where the insulation will be installed. For instance, wall insulation and ceiling insulation require different types of materials, and installing them also involves different levels of difficulty. Your contractor will definitely take these into account when quoting on your job.

Apart from this, the overall price of home insulation installation may also be based on these considerations:

Type of insulation

Insulation types vary in prices, which is why your choice of insulation can affect the overall cost. For instance, when insulating your attic, it’s usually more expensive to use batt insulation than loose-fill insulation.

Complexity of the job

Anything that will make the job more complicated will definitely increase the cost. For example, if you plan on using loose-fill insulation, you should check the ventilation before upgrading the insulation to ensure that there will be no problems.


Before you start insulating your home, make sure to weatherproof it as this will further maximise the benefits of insulation. However, be prepared for the extra costs that this service will entail.

Cost of Insulation Installation in Different States

Cost of insulation installation

Click the infographic image to expand.

An average home insulation job costs around $154.74. This rate only includes installation fees and can still increase depending on varying factors. It’s important to talk to your insulation installer to be sure of what their estimates cover. This will also better prepare you for all the expenses.

Looking for the best insulation specialists in your area? Cut your research time by checking Through the site, you can find the best tradie in your area without trouble.

Pricing information correct as at August 2016.

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