The cost of ceiling insulation installation varies from $50 to $80 per hour. Factors such as the size of your ceiling, type of insulating materials installed, R-value of the insulation and many more add to the cost.
There are insulation types that may work well with walls but not with ceilings. Loose-fill and batt insulation are the most common.
Whether you’re looking to replace your old ceiling insulation or invest in new installation, it is important to know how each type differs in efficiency and insulation prices.
Insulating your ceiling also presents a number of benefits. A well-insulated ceiling reduces heat gain and loss, providing increased comfort to homeowners and helping you save significant amounts of energy costs.
Before the actual installation, ensure that you clearly define your requirements and choose the right insulation material to maximise your investment. Only a qualified insulation installer must carry out the process for your safety and convenience.
Ceiling Insulation Labour Prices
Generally, insulators charge about $50 to $80 per hour. To help you calculate the cost of insulation, consider the size of the installation, the shape of the ceiling and additional services incurred.
For accurate pricing, have a professional insulation installer take measurements and provide cost estimates.
A thorough assessment will also detect issues such as loose or damaged wires in the ceiling. Calling an electrician to resolve the problem before the actual installation will add to your expenses.
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Note: Some ceiling insulation installers may charge per square metre. It typically applies to tradies installing batt insulation. Clarify payment with a prospective installer to carefully plan your budget.
What Influences the Cost of Ceiling Insulation Jobs
According to Australian Energy Foundation (AEF), the estimated cost of ceiling insulation for a 120m2 home is $1,600 to $2,400.
There are a number of factors to consider when estimating the cost of ceiling batts and insulation installation. Here are some:
1. Type of insulation
Your choice of ceiling insulation will determine how much you will be charged as each type varies in efficiency and whole-life cost. Loose-fill (or blown-in), batt and board insulation are the common types used in ceilings.
In terms of upfront costs, ceiling batts are more expensive than loose-fill insulation.
2. R-value of the insulation
Otherwise known as resistance, the R-value impacts the cost of ceiling insulation. It measures the ability of the material to resist heat flow. The higher the R-value, the more energy costs you will save.
Batt insulation is widely used in Australian homes. Here are some of its types along with the R-value of the material.
For glasswool batts laid between ceiling joists, expect to pay around:
- $8 to $11 per m2 for R 1.5
- $8 to $12 per m2 for R 2.0
- $9 to $12 per m2 for R 2.5
- $10 to $13 per m2 for R 3.0
- $11 to $14 per m2 for R 3.5
- $11 to $15 per m2 for R 4.0
- $14 to $18 per m2 for R 5.0
The indicative costs of glasswool batts made from recycled glass bottles laid between ceiling joists are:
- $8 to $11 per m2 for R 2.5
- $9 to $12 per m2 for R 3.0
- $9 to $12 per m2 for R 3.5
- $10 to $14 per m2 for R 4.0
- $14 to $17 per m2 for R 5.0
- $16 to $19 per m2 for R 6.0
For polyester batts laid between ceiling joists, the expected insulation cost is:
- $10 to $13 per m2 for R 2.0
- $12 to $14 per m2 for R 2.5
- $14 to $16 per m2 for R 3.0
- $17 to $19 per m2 for R 3.5
- $19 to $22 per m2 for R 4.0
The indicative costs of fire retarded wool batts laid between ceiling joists are:
- $25 to $28 per m2 for R 3.0
- $33 to $35 per m2 for R 3.5
Note: The prices above are based on Rawlinsons’ Australian Construction Handbook 2018, Edition 36.
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3. Installation difficulty
The thicker the insulation, the harder it gets for the installer to cut the ceiling batts. Likewise, irregular spacing between the ceiling joists will require more cutting work adding to the cost.
The weight of insulating materials can also have an implication on pricing. Expect additional fees for securing and transporting the insulation before installation. Simply, more complications will incur larger insulation costs.
4. Extra work
Replacing old or damaged batts or boards generally attracts increased ceiling insulation costs. The added labour in removing the existing ceiling and other job complications can impact on your expenses.
Special features in batt insulation or other types will incur higher fees. Reflective surfaces are an example of this.
Improving the ventilation around your home is another factor to consider. Sealing cracks and crevices will contribute to the overall price of house insulation.
Types of Insulation Applicable to Your Ceiling
Loose-fill insulation is commonly used in insulating ceiling cavities. Blown-in insulation is made up of loose fibres such as cellulose, polyester and natural wool.
Ceiling batts such as foam, wool, polyester and glasswool are also laid in ceiling joists and can be more expensive than loose fill. Batt insulation is usually installed in houses with flat ceilings and pitched roofs.
Some homeowners with cathedral (or high) ceilings make use of board insulation to keep the little spaces between the roof and the ceiling properly insulated. While insulation boards are typically installed underfloors, they can be effective in ceilings.
Choosing the right insulation type and R-value rating will help you maximise your investment. HIREtrades can assist you in finding ceiling insulation installers in your area.
How to Hire Ceiling Insulation Installers
When hiring a professional insulation installer, always verify their credentials and work experiences. In most states, a licence is not required to install insulation. However, in South Australia, holding a licence is mandatory.
- Consider a ceiling insulation contractor who has completed several insulation projects.
- Look for tradies with verified insurance to help protect your finances and avoid potential disputes.
- Choose the best insulation installer who will accomplish the job with fewer mistakes and minimal disruptions.
A reputable contractor will take the time to assess your property and provide solutions to fully maximise the use of ceiling insulation.
To help save 25 to 30 per cent of heat gain or loss, hire a local insulation contractor who adheres to the Building Code of Australia (BCA). Post your installation job now and receive up to three free quotes from registered tradies.
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