Call us on 1300 733 246

Common Questions

What is the best system for my home?

The best system for you will depend on your requirements. 

There is no one size fits all answer.

Please use our product selector to help you choose the best option for you

How do I save on running costs?

There are a few key things you should consider to save on running costs.

Efficiency of the heating and cooling system.

Buying a more energy efficient system can save you big dollars in the long run.  A properly installed system will last for a long time so make sure you consider the efficiency in making your decision. Our expert team can help you understand these options and recommend the most energy efficient solution for you.

Quality of materials.

Making sure the best quality of ductwork and fittings are used will maximise the energy savings possible on any system.  Sustainable Air only use the best quality materials to give you the best results.

Zoning your system.

Designing a zoning system to minimise wastage is a great way to further minimise energy usage and running costs. Adding zoning to your heating or cooling system can slash your running costs by up to 50%.

How Much $$$$$ Should I Expect To Pay?

Cost will vary depending on the size of your home, the brand and the type of heating or cooling you require, and the difficulty of installation. 

Prices below are a guide only. 
We recommend and in house assessment for an accurate price specific to your needs.

Single split system reverse cycle installed from approximately $1500 (small) to $4500 (large). One room only.

Evaporative cooling. From approximately $3000 to $6000. Whole home.

Ducted refrigerated heating and cooling. From approximately $7000 to $25000. Whole home.

Gas ducted heating. From approximately $2500 to $6000. Whole home.

Gas ducted heating with add on refrigerated cooling ($9000 to $15000). Whole home.

What are the payment options?

Cash, Credit Card (Visa and Mastercard), Bank Transfer, Direct Deposit.

Finance via Once Finance also available for approved customers and products (amounts over $3000 only)


If you need even more details about cooling and heating system, please do not wait to talk to Sustainable Air and you can ask concerns, make an appointment and request a quote. You could additionally call our number at 03 8540 6999.

Why choose Sustainable Air?

Sustainable Air is backed by the largest wholesaler of Sustainable Air is backed by one of the largest wholesalers of heating and cooling products in Australia.  This backing allows us to provide you with Melbourne’s best pricing on all leading brands.  

We don’t compromise on quality, using only the best quality materials, and employing only the best installers. Compliance certificates will be provided on all jobs.

We will provide you with pricing that you would usually only get from a large company, with the personalised service of a small Business.

Wholesale prices.

All leading brands available.

Expert advice.

Energy saving solutions.

Melbourne’s best installation team.

Highest quality materials.

Personalised service.

Price match guarantee.  We’ll match any genuine written quote for same quality of goods.

Contact us for a FREE QUOTE.

Should I zone my ducted heating and cooling system?


Every home is different, but Sustainable usually recommends that you zone your gas ducted heating or refrigerated cooling systems.  

Zoning your system can significantly reduce your running costs, and improve flexibility and comfort.  Don’t waste money heating or cooling areas that are not even in use.

Zone your system where possible for the best in cost savings and comfort.

Zoning is not an option for Evaporative cooling.

Let us show you how to get the best cost savings from your system. Contact Us


Adrian was very polite and knowledgeable about heating.
He was respectful of my budget, measured and calculated exactly what I would need and the installation all went smoothly. Highly recommended!

Moonee Ponds, VIC
PanasonicFujitsuBrivisBonaireLennoxSamsungDaikinMitsubishi Electric
  • Leading installers of heating and air conditioners Melbourne.

    The best big brand deals on evaporative cooling in Melbourne, from Coolair to Breezair evaporative cooling.We regularly partner with leading brands to run specials. This enables us to offer pricing equivilent to the largest dealers , while still maintaining a hands on approach that is hard to achieve in a larger business.

    Call us on 1300 733 246 to find out what air conditioning or heating option is right for you?

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