Lilydale's Best Heating and Cooling ServicesDias Air are Melbourne based heating and cooling specialists working in the Rowville area and surrounding suburbs, servicing all residential and light-commercial heating and cooling requirements.

We are a family owned and operated business, with almost ten years of experience working around the Rowville area and surrounding suburbs.

We provide trusted, quality installations, repairs and servicing of all heating and cooling systems and are members of the Master Plumbers of Australia Association. All of our technicians are highly skilled, experienced plumbers and can cater to all of your heating and cooling needs, and we strive to provide the highest quality advice and workmanship for your specific situation.

What do our services cover?

Heating & cooling installation

Full installations with a 6 year workmanship guarantee. Buy directly from us and save yourself time and money, whilst getting a top of the range system installed.

System repairs

Heating and cooling systems break down from time to time, which can be a real inconvenience – especially in the heat of summer! We offer same-day services and a 24/7 emergency repairs service.

System maintenance

Your heating and cooling system needs regular maintenance to ensure it operates efficiently and minimises wear and tear over time. Regular maintenance also helps to minimise the output of allergens into the air. GIve our team a call today to make sure your system is operating at its best!

What types of systems do we work with?

Need a hand picking a system to suit your needs?  We can help! Just give us a buzz today for a free quote, and one of team will come to assess your requirements and provide you with an obligation-free quote.

We were quoted a very fair and reasonable price. We could not be happier with the service we received and I highly recommend Dias Air to anyone.Thanks again Dias Air
He knew exactly what he was talking about when choosing a unit to suit the house. Best part of all his prices are very reasonable. I would highly recommend Dias Air to anyone looking to get heating or cooling installed in their house
I would highly recommend Dias Air to anyone looking to get heating or cooling installed in their house. Amazing service. Thanks Marlon and i hope to deal with you again.


When it comes to any heating and cooling requirements for your home, you can count on Dias Air. We’ve developed an excellent reputation for our work around Rowville over the last ten years, and here’s why:

  • Family owned and operated
  • Member of Master Plumbers Association
  • 6 Year Workmanship Guarantee
  • 24 / 7 + emergency availability
  • Highly competitive pricing with the highest quality workmanship
  • Operate across Melbourne, including Rowville and surrounding suburbs

Give Dias Air a call today, or fill in the form to the right and we’ll help solve your heating and cooling needs.


Our specialised team at Dias Air can work with any major heating and cooling brand on the market.
Whether you need  installation, servicing or repairs, we can cater to all of your heating and cooling needs.

GIve Dias Air a call today!.