Custom Air Conditioning Installation Sydney

Book Online

By providing your mobile number, you agree to receive SMS updates about your booking, job progress, missed-call follow-ups, and other service communication from Alliance. You can reply STOP to unsubscribe at any time.

Save up to

$250

on new air con installation*

Limited time only, offer ends . Not to be combined with any other offer.

*Offer to be presented at point of booking or sale.

Request a Upfront Quote

4.9/5 Star 2000+ Reviews

5/5 Star 1066+ Reviews

5/5 Star 40+ Reviews

5/5 Star 25+ Review

Sydney’s Custom Air Conditioning
Installation Experts

Do you have a home that’s too big for your standard air conditioning unit? Maybe you have a larger home and want the best air conditioning system that’s going to efficiently cool your space. No matter what you need, Alliance can get it done with a custom air conditioner.

Custom air conditioning is the best way to get the most out of your air con. There’s nothing worse than paying for air conditioning, only to walk into a humid, muggy room that is not being cooled effectively. Unfortunately, these problems are all too common. If you don’t get the right advice, you may end up installing the wrong type of air conditioner to best suit your home.

When you choose to install a custom air conditioner with Alliance Climate Control, you can select a VRV air conditioner or multi split system for your home or office. Each of these systems give you flexibility and control to customise the size and configuration of your cooling system.

With just one call, one of our friendly team members can help you figure out what type of air conditioning system is going to work for you, and how best to get it installed. Call the team at Alliance today to find out more.

Why Choose Us?

Reliability

Air Conditioning service that is dependable, consistent, and responsive every time

5 Star Rated

Over 10,000 happy customers and positive reviews

Relationship

Alliance cares about our customers and build long-term relations

Locally Owned

Family owned and operated business

Reputation

Trustworthy, accountable & quality workmanship

Schedule an appointment with
one of our specialists today.

What is Multi-Split System Air Conditioning?

A multi-split air conditioning system is an air conditioner that features one outdoor compressor that connects to multiple indoor units. Instead of using ducts as a ducted system would, these indoor units are instead connected by refrigerant lines through your house. Up to eight indoor units can be connected to a multi-split system, although they are more commonly seen with five or six units connected.

Because the refrigerant lines connect each indoor unit straight to the outdoor compressor, each indoor unit can be a different style. That means you could have a wall-mounted air conditioner in one room, and a ceiling cassette unit in the next.

These systems give you the ultimate flexibility when it comes to configuring the cooling system for your home. From size to style, you can customise a multi-split system to perfectly suit your home. The ability to customise these systems, make them an extremely popular system across Aussie homes and businesses.

If you think a custom multi-split system air con is the solution your home has been looking for, give the experts at Alliance Climate Control a call. We can help you design and install your perfect cooling system.

Multi Split System Installation

Schedule an appointment with
one of our specialists today.

What Are the Benefits of
Multi-Split System Air Conditioning? ​

With one of the most unique designs in air conditioning, there are lots of benefits to a multi-split air conditioning system. This versatile system is cheap, efficient, and makes for a great addition in any home, office or apartment complex.

alliance-icon

Zoned Cooling

The only air you’ll get with an evaporative cooler is completely clean, fresh air. Any air that comes into your home through the evaporative cooler is clean air taken from outside. Once the air is cooled and circulated through your home, that stale air exists out of a window, instead of being recycled through your home. Only using fresh air, instead of recycling stale air, is a huge benefit for those with sensitive skin or allergies.

Great For Large Spaces

A multi-split system is perfect for larger homes, because you can have multiple indoor units. If you have a large home, an office or a small apartment building, having a multi-split air conditioning system will let you have different units in different rooms that can be controlled individually. You can have up to eight different indoor units connected up to one multi-split air conditioning system. Because each indoor unit is connected to one main outdoor unit, this space-saving design lets you cool a huge amount of area without needing much room to house it, and lots of time to install it.

Indoor Unit Flexibility

A multi-split air conditioning system allows you to have different air conditioning units in each room in the house. Not every room is the same in any home, so why should they all have the same type of air conditioning unit? When installing a multi-split air conditioning system,

you can choose between these air conditioning units to install in each room, connected to the same system:

Schedule an appointment with
one of our specialists today.

Specialist Dealer & Partner
Brands We Work With

Is Multi-Split System Air Conditioning Right for Me?

Multi-Split-System-2

At Alliance, we understand it can be difficult deciding which air conditioning system is right for you. That’s why we are here to help.

If you have a larger home, would like to zone your air conditioning or just like the ability to have different air conditioning units in each room without losing efficiency, then a multi-split system is right for you.

Multi-split system air conditioners give flexibility in a way that no other air conditioners do. You won’t have to worry about crazy installation fees, because the system is cheap enough to run that before long it will have paid for itself.

A multi-split system is also quiet, responsive to changing heat loads and reduces power demand thanks to its high coefficient of operating performance. If these elements all appeal to you, there is no reason you won’t love a multi-system air conditioner.

The best part: Alliance can customise a multi-split system to suit your home. So if your house is large, or has an unusual design, a multi-split system gives you the ability to tailor your air con system to your home. For more information on these custom services, give the Alliance team a call today.

We Are cm3
Qualified Contractors

Cm3 certification is a Work Health & Safety (WHS) prequalification system. Being Cm3 certified, means our business has demonstrated the highest-level health and safety capabilities as well as having the right insurances and licences to protect our customers. Using a Cm3 certified technician is crucial to ensuring you and your project are in safe and protected hands.

What is a VRV Air Conditioning System?

A VRV (or variable refrigerant volume) air conditioning system is one that delivers just enough refrigerant to each connected indoor air conditioning unit to meet its cooling needs. Unlike other systems, a VRV system will detect when a room is no longer occupied and will stop sending that indoor unit refrigerant. As a result this lowers its emissions and operating costs.

VRV air conditioning systems are large scale and can have up to sixty-four indoor units connected to just one outdoor unit, making it perfect for commercial buildings, offices and large apartment blocks. You can customise the location and layouts of the indoor units to best suit your location.

VRV air conditioning is one of the cheapest and most efficient ways to connect that many indoor units from a single outdoor unit. This is why it is so popular among homes and businesses across Australia.

If this sounds like the custom air conditioning system you’ve been looking for, don’t keep waiting on it! Alliance Climate Control can install your custom VRV air conditioning system. Give us a call today to get the ball rolling.

VRV Air Conditioning

What Are the Benefits of VRV Air Conditioning? ​

VRV air conditioning is a sophisticated system that can run over fifty indoor air conditioning units from a single outdoor unit. But the sheer size of a VRV air conditioning system isn’t the only attractive feature of the system. There are many benefits that come with installing a VRV system in your offices, apartment block or commercial building.

Automatic Comfort

A VRV air conditioning system will automatically adjust the interior temperature of each room to a comfortable level. If a room is too hot or cold, the system will use a tiny amount of energy to send enough refrigerant to that unit to maintain a comfortable temperature in that room. Additionally, this feature will automatically reduce the humidity in the air. The way the system can automatically adjust so many rooms at once to maintain a comfortable level is one of the biggest selling points for a VRV air conditioning system.

Cooling And Heating Provided

Unlike other air conditioning systems, a VRV air conditioning system can provide both cooling and heating options. This system will passively heat or cool each connected room until it’s at the predetermined, comfortable level. That means no matter how hot or cold it is outside, it’s always going to be perfect in each room.

Silent Air Flow

Because the primary motor of a VRV air conditioning system is outside, it’s almost completely silent; no more noises and vibrations coming from loud indoor units. A VRV system is going to keep your room cool without disturbing your work or your sleep.

alliance-icon

Energy Efficient Design

A VRV air conditioning system runs at a lower capacity for a smaller amount of time throughout the day, making it far more energy-efficient. This system harnesses and uses hot and cold air to regulate a specific indoor temperature. Because it’s harnessing already hot or cold air to maintain a constant temperature, it’s using far less energy than other fans and air conditioners would. Not only does that make it far more energy-efficient, but it’s cheaper to run as well.

Schedule an appointment with
one of our specialists today.

Facts About Alliance

Installed 10,000+ New Air conditioning units

Helped over 15,000+ Awesome customers

Combined 100+ years experience

Trusted team 70+ Air conditioning, Electrical & Plumbers

Replaced over 10,000+ Air conditioning units

Maintained 15,000+ Air conditioning units

Your 1st choice, your local aircon guys

Is VRV Air Conditioning Right for Me?

Choosing the Right Ducted Air

VRV air conditioning systems are perfect for anyone wanting to maintain a comfortable temperature level in multiple rooms all year long. High comfort and low humidity are what this air conditioning system specialises in. So, if you are looking for a cooling system that produces consistent comfort levels, flexible zoning options and lower energy costs, the VRC air conditioning system is for you.

If you have a small, one-bedroom apartment, a VRV system is not going to be a great investment. But the more rooms you need cooled, and the more efficient of a system you require, the more a VRV system becomes the perfect choice for you. If you work in an industrial building, large office, hotel or corporate building, a VRV air conditioning may be perfect for you.

If you want to know more about VRV air conditioning systems, have a chat with the experts at Alliance! Our team will determine if this system is right for you and walk you along the next steps. Give us a call now!

Schedule an appointment with
one of our specialists today.

Why Our Community
Trusts Alliance?

Licensed, insured techs for your protection​

Inhouse trained techs, we don't use contractor​

Upfront & honest
installation quotes

After care, Lifetime workmanship warranty*

We go the extra mile & focus on the small details

100% satisfaction, or we'll be back to make it right!

Schedule an appointment with
one of our specialists today.

Is VRV Better Than Multi-Split System Air Conditioning?

VRV air conditioning is better than multi-split air conditioning in larger buildings with lots of rooms. VRV air conditioning works similarly to multi-split air conditioning. Both connect multiple indoor units to a single outdoor compressor. The first major difference between the two types is that VRV air conditioning is built for large-scale buildings like large office blocks and hospitals, while multi-split systems are more commonly found in large homes and small office blocks.

The other difference is that a multi-split gives you greater control over the temperature in each room, while a VRV system works best to maintain a constant, comfortable temperature and humidity across multiple rooms. If you are looking for an air conditioning system for a large home, a multi-split system may be better, while a VRV system is going to be far more effective in a large office block.

Get Started on a Custom Air Conditioning Installation

Do you have a building that requires custom air conditioning? Look no further than the team here at Alliance Climate Control. Our team can install custom air conditioning solutions for any sized project. From homes to hospitals, we can do it all.
For more information on how a custom air conditioning system will benefit you, give us a call today. We make sure there’s always someone to take your call, and your questions never go unanswered; that’s the Alliance difference.

What Our Community
Is Saying About Alliance

Alliance Climate Control - Heating, Cooling, Electrical
Based on 2474 reviews
Christian B.
Andres from Alliance was excellent, professional and very clear. Our units are now operating perfectly and he detected a major issue and presented multiple solutions. Would recommend the service highly.
Sky S.
I couldn't be happier with the excellent service and clean provided by Emre.
He was punctual, thorough with his assessment of my aircon units and managed to identify the source of why my aircon has a mouldy smell. He was professional, knowledgeable and clear with his explanation of what can be the problems as well as recommending appropriate options to address the problems.
5/5 will call upon his services again if my aircons ever give me grief (though I doubt it with the level of servicing he performed).
Pete M.
Awesome company, awesome service. Quick reliable, very friendly and very informative.

Class act team! Love your work!

Pete Mac.
James D.
Gokhan and Louis did an amazing job installing my air conditioner! We had them install a split system in our bedroom, and couldn’t be happier

Their communication was excellent - explained the whole process and were very helpful and accommodating. The little things like helping to test different power mains to find the best configuration, the care they took to cover up and move my furniture, and the spotless cleaning job they did afterwards really set them apart. They even gave us a small gift bag at the end, which was a nice touch.

Highly recommended to go with this company, they are professionals through and through!
Nikki M.
I had a great experience from the first time I called with my initial enquiry until the completion of my installation. Excellent communication, customer care and follow up communications. I felt that I was being looked after throughout the entire experience. All of the technicians and tradesmen were very kind and extremely professional. I was kept updated throughout the installation. My place was left clean and tidy. I highly recommend this company - thanks!
Ana N.
Ivan, Brody, Miguel, B.J, Theo and Tim were amazing they kept everything clean and even without a lift they carried everything up and down. They finished in record time and I couldn't ask for a better team!
Martin C.
Very professional. Work completed as stated.
Stephen L.
Always reliable service, thorough check off all parts of the system
Karen B.
Air conditioning service found no problems. Dylan was excellent.
Electrical check found no problems. WAs also able to book for additional power points. Charles was excellent. Walked through all options.
Dion O.
Great team of friendly, efficient guys. Highly recommended.
Chris D.
Jason arrived on time. I was very impressed with Jason’s performance and his knowledge of the system we had. Jason explained in detail what was done to the system and suggested the best way to clean the filter when it requires cleaning.
JJ
Emre was allocated to help with the aircon service for my apartment. I was very impressed with his professionalism. He is one of few dedicated technicians I have come across as knowledgeable who explained everything in details, patient with my questions, friendly, polite and on the whole, he did an amazing job. A very happy client. Thanks, Emre! Highly recommended!
Matthew K.
One of the few vendors who did an on-site inspection before install and took into account my requirements. Gokhan, Louis and Nicholas did a great job with an installation of a split system to an upstairs bedroom. Routed relatively well to avoid outside challenges. Left everything nice and clean afterwards.
Emma W.
Thank you Tommy, Kim and James for your professional courteous service this week. Very efficient and neat work. Explained options well and provided the best solutions for our awkward house.
Megan B.
Such a great team from Alliance just installed my new air con - life changing! Thanks to B.J., Theo, Tim, Emre and in the office Peter, T.K. and Will
Derek S.
We had two visits to fix our aircon Kody and Mitiesh and the problem was resolved satisfactorily. Both guys were very polite, friendly and explained the problem with the aircon and how it was fixed. Very impressive
Spacebar_Google
Charles & Mo from Alliance were great, they did a difficult installation perfectly and cleaned up afterwards as well. Will be using their services again in the future.
Roger W.
5 Star Service, fast, efficient, clean and a pleasure to deal with, from initial consultation with Kirk, follow up from Zac, and great work by installers Matt, Maran, Jono, Tom & Tom!
JJ S.
Update - latest review for the Electrical Safety Inspection on 29/12/25 and Electrical Work on 07/01/26.

We are very impressed with Joshua, Vash and Mohammed. So, we are giving each one of them 5 stars.  Joshua was very detailed and very systematic when he conducted the safety inspection last 29/12/25. Also, giving us practical tips about safety and to monitor the old power points. He also patiently explained the importance of getting the electrical system and smoke alarm up to code and all the things that needs to be replaced. He is also courteous in his behaviour and how he engages with us.

Vash and Mohammed arrived early for the electrical work on 07/01/26.  These young blokes are very thorough, they know what they're doing. They worked as a team and non-stop for several hours. They are also impressive, respectful, and polite. Before they left, they double checked everything and even vacuumed the dining chairs and floor to keep thing tidy. We learned a lot from them and how to use electrical extensions safely.

These young men ( Joshua, Mohammed and Vash )will go far. They arrived neat, clean looking and ready to do the job. They have a high standard in workmanship, dedication and most importantly they have the right attitude about their work and how they treat us.

Kindly let them know that even though they might think they just did the electrical work. For us, they did more than that, they contributed to our health and safety.

Please, don’t stop inspiring these young men to continue developing their trade. They are the kind of professionals that our society needs. Thank you. Jennifer from Macquarie Fields.
--------------------------------------------------------------------------------------------------
Updated my review to include our recent service experience October 11, 2025 with Gabriel.

I want to share our recent experience with Gabriel, who provided a complete tune-up and service on our Fujitsu multi system last October 11, 2025. Overall, our experience was outstanding. My husband and I truly appreciate Gabriel’s dedication—his professionalism, expertise, and meticulous care stood out throughout the visit. He walked us through the air-conditioning health report, clearly explaining the tasks he completed and the performance of our air conditioner, while also offering practical and easy-to-follow maintenance suggestions that put our minds at ease.

Gabriel consistently demonstrates professionalism and a positive attitude toward his work, just as he did in January 2022. His respectful and polite manner made the entire process enjoyable. Thanks to Gabriel’s thorough service, we feel much more at ease knowing our air conditioner is in top condition and our home’s air quality is supporting a healthy lifestyle.

We are happy to recommend Gabriel to others, and we hope to see him again in another year or so. Thank you once again for your excellent service—Gabriel is truly deserving of 5 stars. Thank you, Gabriel.
----------------------------------------------
On the 19th of Jan 2022 an inspection was conducted by Gabriel. He was punctual and did a thorough inspection. He came back with Bailey for the AC cleaning and tune up on the 21st of Jan as per agreement. We have rated both of them 5 stars for the following reasons and base on our observations. Punctuality, tidy in appearance and work, very knowledgable with their trade, well mannered, they did a meticulous job in servicing our AC. Most of all, they were both efficient because they worked as a team. We are a very happy customer. Thank you Gabriel and Bailey.
Googie W.
The boys were so helpful, nothing was a trouble & they knew their stuff, very professional which made a great experience all round!
Garry K.
We are delighted with the level of service and the quality of the job. The technicians, Mitesh and Nick were fantastic

We have already referred one of our friends to Alliance
Gary W.
Alliance has done an amazing job from providing the solution , quoting and install by Vy and his team. The install was competed in one day with an even better outcome than originally designed. Well done to the entire Alliance Team and would highly recommend.
Russell O.
ACC was thorough and professional on their quote and their installation was all completed ahead of schedule. They made an effort to minimize the mess caused by the work and their cleaned up and hauled away all packaging. The AC has made our house a home!
Karim M.
Charles and Aaron arrived on time and were patient and professional while answering all of my questions. They provided clear, written quotes, explained exactly what was included and what wasn’t, and even suggested and implemented a solution on the same day for a problem that wasnt even part of the job they initially came out to do.
Maria M.
Extremely impressed with Shaby, Michael and Benjamin from Alliance. Professional AC installation work, polite and friendly and very helpful. I would highly recommend these guys and the costumer service team from Alliance .
Helena M.
From the very beginning I knew I would receive good service from this company. The lady that answered the phone ( Kayley I believe) was very efficient in assessing what I needed and organising a supervisor to come in and arrange quote. That was Alex - he was very straightforward and a very good salesman!! The service itself was also straightforward with two techs coming in (Mitiesh and Nick) and they just got on with it while dealing with a very curious pet! Overall a very positive experience and I will be signing up with them for regular maintenance and refer the company for anyone who has a similar issue that I had. Thanks
Anne B.
We were very pleased with the whole process. Thank you.
William B.
Service Technician arrived within the advised block time. He carried out the required service very efficiently and provided a written report of the condition of all aspects of the A/C and cleaned all the filters, unit cover and the outdoor unit. Very satisfied with a thoroughly professional performance.
Paul M.
Very proficient and easy Company to work with. Quality product and workmanship.
Maree S.
Had my ducted aircon serviced. Very happy with the professionalism from booking the appointment to service provided by Andre Galvis.

Save up to 

$250

on new air con installation*

Limited time only, offer ends . Not to be combined with any other offer

*Offer to be presented at point of booking or sale.

Book Online