Belgrave's air conditioning and heating experts - Dias AirDias Air have been providing heating and air conditioning services to residents and light commercial businesses in Belgrave and surrounding suburbs since 2007.

A family owned company, we pride ourselves on providing the highest quality workmanship and best customer service in Melbourne’s south eastern suburbs for the installation, repair and maintenance of all heating and cooling systems.

Whether you need a complete new system, or you just need your current system serviced or repaired – our friendly tradesmen are available for same day appointments, and we also offer 24/7 emergency availability.

Qualified & Experienced Professionals

Our highly trained and experienced technicians are all fully qualified and are Members of the Master Plumbers Association of Australia, so you know you can trust Dias Air to solve all of your heating and air conditioning requirements.

For the best cooling and heating services in Belgrave, give Dias Air a call today!


Air-conditioning & Cooling

Keep cool in summer with a quality air conditioning system that’s designed for your needs. Whether you’re on a budget or want the best system on the market, we’ve got you covered.


Melbourne can get chilly – get in touch with the Dias Air team to ensure you’re equipped to stay warm and comfortable all year round with a quality heating system.

Purchase & Installation

Purchase your system directly from Dias Air and save money with our competitive pricing. Our friendly tradesmen will work with you to find the best system for your needs and budget.

Maintenance & Repairs

If your current system isn’t running the way it should – or worse yet has broken down – get in touch with Dias Air. We provide repairs and maintenance, and may be able to save you the cost of having to install a brand new system.

Residential & Light Commercial

We work with clients in both residential and light-commercial markets to provide heating and cooling solutions – get in touch today!

Call for a free Quote



Our goal is simple – to provide the best possible heating or air conditioning solution for your individual needs, and to make sure that every one of our customers walk away happy and satisfied.

Our business thrives on making our customers’ life easy when it comes to all things heating and cooling!

  • Dias Air - Member of Master Plumbers AustraliaLicensed Plumbers – Licence Number: 107046
  • Emergency availability 24 x 7
  • Member of Master Plumber Association
  • 6 Year Workmanship Guarantee
  • Family owned and operated
  • Competitive Pricing
  • Your local plumbers in Belgrave and surrounding suburbs
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.