Dias Air has been offering high quality heating and cooling services across Oakleigh and neighbouring suburbs since 2007. We specialise in installations, repairs and maintenance of all major brands and systems, so whatever your heating and cooling needs – we’ve got you covered.

Our team of qualified and experienced technicians can provide same day appointments to homes in Oakleigh, and also have 24/7 emergency availability for those tricky times.

When you need heating or cooling services, think of Dias Air.

What types of heating and cooling systems can we help you with?

  • Split systems
  • Ducted heating & cooling
  • Gas heating
  • Evaporative cooling

Give us a call today for your free quote, or fill out the form on this page and we’ll get in touch right away.


Whether you’re looking for a brand new system to be installed in your home, or you just need your existing unit serviced or repaired – our highly trained and experienced tradesmen can service all of your needs.

Installation – Need a brand new system? We’re here to help. When you call our team, we’ll send one of our technicians out to visit your home for to conduct a thorough site inspection and assess your needs to determine the best and most cost effective solution to suit your individual situation.

System repairs – Every so often, even the best systems may need repairs. We work with all brands on the market, so you can rely on Dias Air to have you back up and running with minimal down-time. We have same day appointments available, and also offer 24/7 emergency services for those inconvenient times.

Servicing and maintenance – As with any mechanical system, it’s vital that your heating or cooling unit is serviced and maintained regularly, to avoid any breakdowns and ensure it’s running at high efficiency. Contact a qualified Dias Air technician today to schedule in a time that suits you.

Not sure what you need? Get in touch today to speak with one of our team.


Every customer has different needs when it comes to cooling their homes, which is why Dias Air work with a wide range of air conditioning systems. We only install the best brands on the market to ensure you get a quality product that will stand the test of time.

What cooling option is best for you?

Ducted split systems for cooling

A step up from the wall mounted split system, the ducted split system will deliver cooled air to rooms throughout the house via concealed ducts. These units are hidden away inside the roof cavity so they’re kept out of site, giving your home a cleaner look.

Wall split systems for cooling

These units are best if you’re wanting to cool a specific room quickly. With advances in technology, these units are becoming more and more efficient, which will go a long way to keeping your power bills lower. Wall split systems can also double as a heating unit in the cooler months of the year.

Evaporative cooling

Affordable and efficient if you’re on a budget, evaporative cooling still packs a punch and will keep you cool in the summer while keeping power bills down.

Add-on cooling

An efficient and effective all-in-one system, add-on cooling eliminates the need for you to have two separate units for both heating and cooling. High efficiency means this option will keep operating costs low.


Melbourne can get chilly at any time of year – especially in the winter months. We specialise in heating systems that will keep you and your family warm and comfortable.

If you’re not sure what system is right for your specific needs, just call one of our friendly team to arrange a free site assessment and quote.

Wall split systems

Best suited for heating single rooms, such as a bedroom or study. This unit can also be used as an air conditioner in summer, making it a versatile and ever popular option amongst homeowners.

Ducted split systems

Doubling up as both a heating and cooling option, the ducted split system is highly efficient and effective, delivering warm air into rooms through concealed ducts around the house.

If you’re not sure what system is right for your specific needs, just call one of our friendly team to arrange a free site assessment and quote.


Since 2007 Dias Air have built an excellent reputation for quality workmanship, attention to detail and customer service. We pride ourselves on our customers walking away satisfied and happy, every time.Dias Air - Member of Master Plumbers Australia

  • Family owned and operated
  • Licensed Plumbers – Member of Master Plumbers Association
  • 24 / 7 + emergency availability
  • 6 Year Workmanship Guarantees
  • Same day appointments available
  • Highly competitive pricing
  • Operate across Melbourne’s south-eastern suburbs

Get the job done right the first time, by a qualified professional you can trust. Call Dias Air for a free quote.

Oakleigh Heating & Air Conditioning - DIas Air

We work with all major brands on the market for installations, maintenance and repairs. Some of the major brands include: