Mordialloc's Premier Heating and Cooling ServicesDias Air specialise in the installation, servicing and repairs of residential and light-commercial heating and cooling systems in Mordialloc and surrounding suburbs.

We’ve been operating in Melbourne’s south-eastern suburbs since 2007 and have a highly qualified and licensed team of professionals to service all of your needs when it comes to air conditioning and heating systems for your home.

Systems we specialise in:

  • Air Conditioning
  • Ducted Split Systems
  • Split systems
  • Evaporative Cooling
  • Gas Heating

We also offer free quotes. Give us a call or fill in the contact form and we’ll get back to you right away to arrange for one of our specialists to come and assess your situation.


We find that a lot of our customers’ air conditioning requirements differ depending on their individual needs, which is why we work with a variety units and systems:

Evaporative cooling – The most affordable option, without compromising on efficiency. Evaporative cooling keeps running costs low, which allows you to avoid expensive bills.

Add-on cooling – Acts as both a heating and cooling unit, so you don’t have to invest in both. This option provides an efficient and effective all-in-one system.

Wall split systems for cooling – If you need a unit for cooling a specific room in the house – look no further than a wall split system. With innovations in technology, these wall mounted units are becoming more and more efficient, while being effective and easy to operate.

Ducted split systems for cooling – Requiring slightly more of an investment initially, a ducted split system is the top-of-the line system that offers the best convenience and highest quality efficiency. Think of the ducted system as the big-brother of the wall mounted unit – the ducted system delivers air through concealed vents while the unit stays hidden away in the roof cavity.


Dias Air also specialise in heating systems to keep you and your family warm in the cooler months. You can rely on us to help you choose the best option for your home, no matter what your requirements.

Wall split systems – a very effective unit when focusing on warming a single room. As mentioned above, the wall split system can also be used as an air conditioner in summer, making it a versatile and popular option.

Ducted split systems – doubling as a heating and cooling system, the ducted split system is one of the most energy efficient and effective units that we offer. Recycled air from inside the house is heated and pumped back into rooms through ducts.

We recommend calling to discuss your options first, to make sure we can give you the best option for your needs. Call us today!


We’re proud of the reputation we’ve built up over the last ten years for providing top-quality air conditioning and heating services around Mordialloc. We’re known for our excellent workmanship, attention to detail and completing every job with the attention and care it deserves.

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

Need the job done right? Call Dias Air.


If you need a brand new unit, Dias Air can help you choose the best solution for your individual needs and budget. But we can also service, maintain and repair your current system.

Heating and air conditioning installation: If you’re in the market for a brand new unit, Dias Air will provide affordable and competitive pricing on the best brands in the market. We’ll arrange the best time that suits you to come out and do an assessment, so we can help you decide on the best option.

Heating and cooling system repairs: From time to time your heating and cooling unit may break down. But before you buy a new system, give Dias Air a call – one of our highly qualified technicians may be able to fix your unit at a fraction of the cost of a new one, saving you money.

Servicing and maintenance: It’s important to have your system serviced and well maintained on a regular basis to reduce allergen build up and ensure that it’s running efficiently to keep those power bills down.

Not sure if you need a new complete system, or just need a good service of your existing unit? Get in touch today to speak with one of our team.

Heating & Cooling Services - Mordialloc

We work with all brands to carry out maintenance and repairs. Some of the major brands include: