Brisbane multi split air conditioning

What is a multi split system air conditioner?

Characterised by flexibility, efficiency, and high performance, a multi split system is a great option for buildings that require specific climate control in multiple rooms.

You can independently control the temperature in specific rooms of your home or office with various indoor units operating from only the one outdoor unit.

  • Multi-room control
  • Single outdoor unit
  • Easy installation
  • Space-saving setup

Which multi split system are you looking for?

Looking for more control across multiple rooms?

Total comfort for your home with a multi split system

The basic principle of a multi split system air conditioner is that multiple indoor units can connect and operate from a single outdoor unit.

Indoor units are flexible to install, so they’re ideal for small residential applications that may have limited floor or ceiling room for a traditional ducted system. Units can be wall-mounted, or with ceiling cassettes or bulkhead models.

Through a multi-split system, each room’s temperature is independently managed. This means you can keep high-traffic areas like the family room cool, while other unoccupied rooms like a study or spare bedroom consume little to no energy.

Multi split system solutions designed for your business

Multi split system air conditioners can be a smart option for commercial spaces that need separate temperature control across different rooms or zones, without the complexity of larger ducted systems.

Because you have complete control of the temperature in various rooms of your space, you’re reducing wasted air. Energy.gov attributes more than 30% of energy consumption to “duct loss” from a ducted system.

If your business needs flexible cooling without overcomplicating the setup, we can help you find the right solution. That includes considering room usage, occupancy, and how different areas need to be conditioned throughout the day.

Not sure which system is best for you?

Learn more about other air conditioning systems or contact us for more professional recommendations or advice.

Multi split system service and repairs

Depending on the property’s specifications and your requirements, a multi-split system could be the ideal climate solution. Tri-Tech’s team of air conditioning specialists will help you choose the right cooling solution for your home, business, office, or new build.

We’re authorised service dealers for multi split air con brands

We work with a range of leading air conditioning brands and are authorised service dealers for systems including Mitsubishi Electric, Daikin, and Advantage Air. That means your multi split system is installed to the required standards and supported properly over time – and if something needs attention down the track, you’re dealing with a team that already understands your system.

FAQs

A standard split system connects one indoor unit to one outdoor unit. A multi split system connects multiple indoor units to a single outdoor unit, allowing you to control several rooms without installing multiple external systems.

Multi split system air conditioners are a great option if you want to control multiple rooms individually but have limited space for outdoor units. For that reason, they’re commonly used in homes as well as in places like offices and smaller commercial spaces that have several separate areas that need cooling.

Yes, each indoor unit operates independently so you can easily adjust temperatures or turn units on and off in different rooms based on how the space is being used.

Yes, they can be (especially when you’re only running the rooms you need). Overall energy efficiency will depend on choosing the right system size and using it effectively instead of just running all areas at once unnecessarily.

Multi split units don’t necessarily require more maintenance, but they do involve multiple indoor units. Regular servicing helps make sure that all parts of the system are working properly and prevents small issues from affecting overall performance.

What do our customers have to say?

Couldn’t be happier with the service from Tri-Tech. From booking the appointment through to the technician completing the work, everyone was helpful and professional. The air conditioning system was given a really thorough clean and service, and it’s running noticeably better now. Great local company and highly recommended.
SIFUDDIN 128 profile picture
SIFUDDIN 128
4 days ago
We had 4 split systems installed by Tri-Tech Air Conditioning around 5 years ago and have continued to have them serviced every year. We’ve always been really happy with the service and professionalism. From the friendly office staff through to the technicians, everyone has been reliable, helpful and great to deal with. Highly recommend.
Always on time, always courteous, and very thorough.
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Dotun Adedoja
5 days ago
Excellent experience with Tri-Tech Air Conditioning. The technician ‘Aidan’ arrived on time, was friendly and professional, and did a very thorough service of our systems. He took the time to explain everything clearly and made sure everything was running properly before leaving. Would definitely recommend Tri-Tech.
amin saab profile picture
amin saab
6 days ago
We’ve been using Tri-Tech Air Conditioning for several years now and have always been impressed with their service. Our air conditioners are serviced regularly, and the technicians are always friendly, reliable and thorough. The office team are also great to deal with. Highly recommend their services.
John Lau profile picture
John Lau
4 months ago
Outstanding service. Tritech installed a ducted system for us. Paul gave us a quote quickly and was able to thoroughly explain what their works would entail. The team was professional and tidy, and made sure everything was done well. You could barely tell a team came in and removed a ducted system and installed a new one, it was that clean. Workmanship was great. No complaints and we would certainly reach out to them again for any air conditioning related things in the future.
Bruce Mercer profile picture
Bruce Mercer
4 months ago
Natasha Anson profile picture
Natasha Anson
4 months ago
Thanks to Liana for helping me install my air conditioning for my new home! She was so helpful with her recommendations.
Peter ODonoghue profile picture
Peter ODonoghue
4 months ago
Matt and T provided fast friendly efficient service of new air con and fixed transformer problem with old ducting. Well done dynamic duo!
Margaret Hanrahan profile picture
Margaret Hanrahan
4 months ago
Very efficient service
Darien profile picture
Darien
4 months ago
We got several Aircons through tritech air-conditioning. Darren was amazing from moment of quoting to seeing the job through. I highly recommend Tri-texh air-conditioning.
I had such a great experience with Tri-Tech Airconditioning & Electrical. Andrea who I dealt with was fantastic from start to finish friendly, organised and genuinely cared about getting things right. Everything was explained clearly, the service was prompt, and the job was done properly with no issues. I wouldn’t hesitate to recommend Tri-Tech to anyone looking for honest, high-quality aircon service.
MD GK profile picture
MD GK
5 months ago
I’ve had Jayden and the Tri-Tech family install air conditioners across two of my houses, and they have impressed me every time. Their level of service is outstanding — always efficient, highly professional, and clearly experts in what they do. On top of that, their pricing is very competitive. I wouldn’t hesitate to recommend them to anyone looking for quality air conditioning installation.
All my dealings with Tri-Tech have been fantastic. We had 2 air cos fitted a couple of years ago and just recently another older unit (not installed by TT) repaired and serviced. From office staff to technicians – courteous, efficient, clean and professional! Shout out to Xavier great job!
Sarah W profile picture
Sarah W
6 months ago
Our experience with tri-tech was great. All the people we dealt with were fantastic and the team that installed our ducted system were respectful and professional. We also had an individual unit installed and we were very happy with how the work was carried out. When there was a problem, tri tech were quick to help solve it and rectify the problem without delay. Highly recommend.
Andrea Peters profile picture
Andrea Peters
7 months ago
Absolutely outstanding service! From the first phone call to the final visit, the team was professional, punctual, and incredibly knowledgeable. They explained everything clearly, provided fair pricing, and completed the work efficiently without cutting corners. Our home is now cooler than ever, and the system runs perfectly.

It’s hard to find companies that truly care about customer satisfaction, but this one goes above and beyond. I highly recommend them to anyone needing air conditioning repair or installation — you won’t be disappointed!
jazzie stubbs profile picture
jazzie stubbs
7 months ago
I had a great experience with Tritech. They had great communication and were so efficient. There was no messing about or needing to follow up with them and everything worked out with ease. The price was super reasonable but ultimately I went with them because even from my first enquiry I could tell there would be no issues! Thank you
Jane Briggs profile picture
Jane Briggs
7 months ago
In November 2025 one of our 25 year old Daikin ducted air conditioning systems failed.The first time in 25 years.The part to fix it was no longer available.The team at tri – tech were amazing. They were able to think through a solution to repair the old system using a different approach rather than saying it was too hard and we needed to invest in a whole new unit.It saved us thousands of dollars.I would not hesitate to recommend this company.Every member of the team was so approachable and kept us in the loop at each step as different solutions were thought through.They are definitely a 5 star air conditioning company.
Kate Byrne profile picture
Kate Byrne
11 months ago
Could not ask for better service. Our experience with Tri-Tech has been brilliant, from the first conversation and quote to installation. Everyone on their team was a pleasure to speak to and so proactively competent and helpful. They were the only company we called that made the quoting process easy and effective.
The team members that came to our home, to confirm the quote and to install were a pleasure, great customer service and a quality job. I feel the whole team went beyond our expectations and I cant recommend them enough.

A very happy customer who has enjoyed the brilliant customer service. Thank you.
Veronica Blackwell profile picture
Veronica Blackwell
12 months ago
Hi All,
I would like to thank Darren Panter, Project Manager for recommending Mitsubishi Electric AP 5 kW Reverse Cycle Inverter Wall Mounted Split System as the air-conditioning unit that will suit our 2 bedroom apartment and for arranging Peter to decommission and remove our 14 years old no longer working aircon. Peter did a wonderful and neat job of installing the new reverse cycle unit. We are happy with the result and I would recommend these guys to anyone who needs a new air-conditioning unit for the house or an apartment.

I also had a wonderful support from the Admin staff from TriTech.

I highly recommend this company for the job well done!

Kindest regards,
Veronica

Get a free consultation to find the perfect model

Get in touch with the team at Tri-Tech today. Give us a call on (07) 3394 0222 or fill in this form for a free quote.