Air Conditioning Repairs Sydney

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Sydney’s Air Conditioning
Repair Experts

Troubles with your air conditioning are a major inconvenience to you and your family. You rely on your air con to make your home comfortable, so when something goes wrong, fast and reliable air con repairs are a must. 

Here at Alliance Climate Control, we take pride in delivering quick and affordable air conditioning repairs across Greater Sydney. Our technicians provide high quality repairs for all brands and types of air conditioning unit, including both split system and ducted air con repairs. 

As one of the leading air con services in Sydney, we understand the importance of local service and support. Our dedication to quality workmanship means we never compromise on quality, ensuring you get the very most out of your air conditioning unit. 

If you’re experiencing problems with your air conditioning, don’t wait until it’s too late. Call Alliance Climate Control to book your air conditioner repair.

How Do I Know If I Need
Air Conditioning Repairs?

Being able to identify common air conditioner problems is key to ensuring your unit stays in good working order. 

Signs of a broken air conditioner include:

  • Air conditioner running but not cooling 
  • Stuffy feeling or musty air
  • Loud running or strange noises 
  • Air con unit leaking water 
  • Foul smells coming from the system
  • Temperature fluctuations
  • Poor cooling or slow to cool 
  • Visible condensation on walls and windows
  • Excessive electricity bills 

If you’re seeing any of these symptoms, there’s no doubt that something is wrong with your air conditioning unit. This could be caused by many things, but without a professional diagnosis, it can be hard to identify the problem. 

That’s why the team at Alliance Climate Control is always ready to troubleshoot your air conditioning issues. When you book an appointment with Alliance, one of our Sydney technicians will visit your home for an expert inspection and diagnosis of your air con system. 

Air conditioner repairs can snowball into much more expensive issues if left too long. If your air con is having issues, it’s best to call a reliable air conditioning service right away.

To book one of our specialists for air conditioner repairs, call the team at Alliance Climate Control today!

Schedule an appointment with
one of our specialists today.

Common Reasons for
Air Conditioner Repairs

Modern air conditioners are built to last, even when dealing with Sydney’s climate extremes. However, like all machinery, there are times when things go wrong and your air conditioning unit may need to be repaired.

Some of the most common causes of air con repairs are:

  • Fan coil, fan or filter blockage leading to poor cooling
  • Water leak because of blocked or damaged drain
  • Failing or inefficient outside condenser unit
  • Temperature and humidity sensors are faulty
  • Refrigerant gas leak causing critically low levels
  • Swing motor or air vents not working properly

Here at Alliance Climate Control, we are familiar with the roots of common air conditioner repair needs. This means our technicians can diagnose faults quickly, find the right solution, and get your air con running smoothly again. We will also give you an understanding of how the fault occurred and how to avoid it in the future.

When you book an appointment with us, an Alliance technician will visit your Sydney home promptly. We’ll let you know exactly what the fault is and the best way to resolve it: whether that’s an air con service, technical repair or part replacement. At every stage, we keep you in the loop about what’s going on and the costs to expect. 

In need of air conditioning repair services? Call the friendly team at Alliance today.

Air conditioner repairs

Schedule an appointment with
one of our specialists today.

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

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one of our specialists today.

Split System & Ducted Air Conditioning
Repair Services

At Alliance Climate Control, we perform quality repairs across all split system and ducted air conditioning brands.

Common AC repairs we perform include:

  • Compressor repairs
  • PC board replacements
  • High pressure low press switch repairs
  • Thermostat replacements/repairs
  • New filter replacements
  • Zone motor replacements repairs
  • Gas leak repairs
  • Fan motor repairs and replacements 
  • Capacitor replacements
  • Ductwork repairs 

If your central air con or wall unit is on its last legs, we can also provide an affordable quote for air conditioning unit replacement. 

When you have home air con issues, turn to Sydney’s best air conditioning repair service, with hundreds of five-star ratings under our belt. To book your appointment, call Alliance Climate Control today. 

Schedule an appointment with
one of our specialists today.

What Our Clients
Are Saying About Alliance

Peter Biasotoo
From the time I contacted Alliance to the completion of a new ducted gas heating system I have nothing but praise for the company and its staff. Initial inspection was done by Jake Who provided me with the quote and confidence to proceed with the job. Their office did follow up to coordinate installation date and time of the arrival by the guys doing the installation.

The courteous and professional approach by Jonathan Thomas Sam and Peter is a credit to them as representatives of Alliance and having dealt with many contractors in my career and by comparison they are up there with the best, as individuals and as a company in the industry. I would be most pleased to recommend the company and its staff to any body that wishes to contact me.
Ted Robinson
I don't think I've ever come in contact with a better-run business than this one. From the first inspection to talking through the options right through to installation this mob was stunningly professional - they always turned up on time, communication with the office was perfect, all the documentation was excellent; whoever runs this business really needs to be congratulated. Then on the day of the installation, an unpleasantly hot day to be working up in the roof, they sent three excellent young blokes - Harry, Aaron P. and Aiden, who did a really great job.

I recommend these guys without hesitation; I'll give my sister in Crows Nest a ring and proselitize today as I sit back and enjoy a day when 33 is forecast, rather than suffer through it.
Andy Taylor
The guys who quoted and installed our a/c were absolutely fantastic. The instal was not an easy one but Andres, Ivan and Asa worked quickly and efficiently, installing our ducted reverse cycle system.

They were very polite, neat and tidy and very professional. The system works really well and we are very happy. This is the second time we have used Alliance and we highly recommend them.
Jason
The Alliance team were excellent from first contact through to quote and installation. I couldn’t be happier with the service. Everyone I have dealt with has been super friendly and courteous. The installation team arrived on time, calling half an hour before arrival.

Work carried out was explained clearly prior to commencement and I was consulted on any predilections. All care was taken to ensure my furniture was protected from dust caused by drilling, and clean-up was performed brilliantly after completion. It was a big job, however the team were always professional and considerate, taking great care with the installation and the overall aesthetics. I was so impressed with the service that I am now scheduling my next installation. Highly recommended.

Thanks to B.J. Noah, Adrian, Tory, Zac, Joe, Charlene, Sam.
Patrick Reeves
We sort 4 quotes to replace our old ducted system with a new Daikin Zoned System. Two quotes were $3k more than Alliance Climate Control, one was cheaper, but they did not appear to be very professional and wanted to install in the easiest manner which would have left a strip of conduit running down our wall to the control panel.

Michael and his team from Alliance CC were able to replace our existing unit with the minimum amount of change to our existing set up. They were very competitive, they were professional in there manner, they took care not to tramp dirt through the house (on a rainy day), they turned up when they said. We are very happy with the new system, which is so quite compared to the old unit it replaced. I know of 4 other owners in our complex who (gained seperate quotes) have since used Alliance CC to change over their old units.
Kelly Cranko
I cannot praise Alliance Climate Control highly enough .

It is definitely one of the best companies I have dealt with in a long time.

I give it 5 stars for admin, professionalism , punctuality, helpfulness , neatness ... It was a pleasure to deal with them from start to finish. They even called me back on a Saturday afternoon when I could not operate the air conditioner (no fault of theirs) - they talked me through it and it worked within minutes . I would not hesitate to recommend them
David Fergusson
The Alliance team of Kevin, Andre and Dragan arrived on time and completed the heater installation work promptly and efficiently. The guys were cheerful, friendly and courteous. They worked effectively to overcome any obstacles found during the job. They were careful about cleaning up after the job and ensuring we were able to understand the operation and the follow on maintenance arrangements. Same comments apply to Tim who came during the installation and looked after the gas fitting work.

Thanks Tim, Kevin, Andre and Dragan for a job well done.
Anna Hu
We got our air conditioning installed by Alliance today and it completely exceeded our expectations.

Alliance was recommended in a local Facebook community group and from our first interactions they have been so professional and thorough. Zac was so knowledgeable and gave great advice on where we should install the units and Tommy and Nick installed the units over 2 days and we couldn’t be happier. Tommy and Nick’s work is clean, thorough and to such a high quality. We are just so happy and I highly recommend them!
Christopher Walton
Alliance Climate Control,

I would like to thank the entire Alliance team for an outstanding ducted air conditioning installation.

In particular, Goran for providing an immediate quote and scheduling, and the technicians Kevin, Dragan, Garret and Harry for their reliable, professional, cooperative and tidy work.

I would definitely refer Alliance to friends and colleagues for any air con needs.

Thank you for a job well done. Happy to be cosy once more. Cheers

Chris

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one of our specialists today.

Why Our Community
Trusts Alliance?

Licensed, insured techs for your protection​

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Inhouse trained techs, we don't use contractor​

Upfront & honest
installation quotes

After care, Lifetime workmanship warranty*

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We go the extra mile & focus
on the small details

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

Schedule an appointment with
one of our specialists today.

Air Conditioner Gas Refills

An air conditioner gas leak is one of the only times your system will need a gas refill. In fact, it’s illegal to perform unnecessary gas refills in Australia. If a gas leak is detected and repaired, it’s standard for the technician to refill the refrigerant gas as part of the process.

If your air conditioner is repaired by an amateur technician, or one not licensed to handle refrigerant gas, this can cause permanent damage to your air conditioning unit. 

Here at Alliance Climate Control, every member of our team is licensed to handle refrigerant gas. When you know that when you book a repair with us, your system will be handled by trained professionals from start to finish.

Learn more about air conditioner gas refills 

Schedule an appointment with
one of our specialists today.

Air Conditioning
Ductwork Repairs

A common issue that air conditioner repair specialists are called to deal with is air ductwork repairs. Air conditioner ductwork is essential to the proper function of your system, and if damage to your ducts can cause a range of issues.

If you notice or suspect damage to your air conditioning ductwork, it’s important to get it repaired as soon as possible. Here at Alliance Climate Control, we have a team of experienced and qualified repair technicians who can quickly and efficiently repair any damage to ductwork with minimal disruption to your home or business.

Learn more about air conditioning ductwork repairs 

Schedule an appointment with
one of our specialists today.

Air Conditioning Compressor Repairs

The air conditioning compressor is a major component in the air conditioning system. A faulty air conditioning compressor will not only affect the performance of the air conditioner, but can also cause damage to the rest of the system.

Signs of a broken air compressor in your AC unit include:

  • Loud sounds, such as screeching or metallic noises
  • Poor air flow or cooling performance
  • Circuit breaker tripping repeatedly 
  • Air conditioner doesn’t start properly 

Alliance Climate Control technicians are trained and equipped to repair all brands of air conditioning compressors. As one of the hardest working components of your air con unit, air compressors generally need repairs for either impact damage or long-term wear and tear.

Our technicians provide repairs and replacements for a range of different types of air compressors, including split system and ducted air con compressors. To book a repair appointment, give Alliance Climate Control a call. 

Schedule an appointment with
one of our specialists today.

What Our Community
Is Saying About Alliance

Alliance Climate Control - Heating, Cooling, Electrical
4.9
Based on 2025 reviews
Elle Jay Q.
We didn't go ahead with the quote, only because another company fitted our needs more closely, but I would still 100% recommend including Alliance as part of who you call when looking for aircon. Liam Doyle quoted us and he was very knowledgeable and friendly. I would definitely advise calling them if you need aircon.
Darby J.
From start to end excellent professional team, great communication, very well organised and coordinated, installation teamwork was superb, clean up was very well done.
James, Tommy, Matt, Miguel and Harry were all excellent, courteous and respectful of working in our house.
Overall they were a team that I would have back again and recommend to any future customers.
andre M.
Did what they said they would do very efficiently
Jennifer H.
The team were punctual, extremely polite and did a great job!
James H.
Andres, Ivan and Juan from Alliance Climate Control replaced two old air conditioners efficiently and timely. They were friendly and knowledgeable about the products and I highly recommend them.
Helen R.
It was raining heavily the day the Alliance Climate Control technician came to my house to provide a maintenance and check up for my two air conditioners. He carried out the job, working both inside and outside without complaint (about the rain). He was on time and efficient. I have confidence that he did an excellent job. Thank you.
Jay K
Dragon and his two mates were very polite and respectful, they drilled the wall from both sides to minimize the chipping, installed everything nicely, and completed the job on time. I am really pleased with them.
John M.
Good job.
Aaron J.
Wow! I called Alliance Climate Control to get some advice on my ageing air-conditioniers and from that moment on, it was a pleasure to deal with such a customer focused company. After emails / texts from Head Office explaining the process, Raj turned up to give me a diagnostic report on my almost broken air-conditioning system. After explaining all of the possible scenarios, I decided to purchase a new system. Team Leader Vy and Cristian turned up a couple of days later and from that point on, it was all systems go. Everything was explained simply and professionally as the process went along. Other technicians turned up ( Harry, James and Moller) to help with the installation (which at some points was more difficult than expected due to my ageing terrace house) and it was all carried out in an expert manner.
I would highly recommend Alliance Climate Control for any air-conditioning needs.
spencer B.
Great team very professional
Levi's D.
Kyle was very professional and courteous.
Kim
Alliance installed a Daikin 15.5Kw ducted unit one week ago. The team of Garrett, Lewis and Qais worked really well together. Qais was particularly impressive with his work ethics.
Also, Harry who did the plastering, and Yiannis who finished the job off with very careful painting of our ceiling.
Peter K.
Our old ducted air conditioner failed, so we contacted the team at Alliance for a replacement. They provided a competitive quote and completed the installation quickly. James Greene thoroughly explained the process and presented us with several options. Alliance offers exceptional before-and-after sales service, and we have enjoyed trouble-free air conditioning for the past two summers.
Michael W.
Tommy, Miguel and Nick did an excellent installation. Very tidy and neat.
Andrew L.
Alliance were outstanding from start to finish. Made an initial enquiry and James came out the next day. Comprehensive quote on the spot. Accepted and the whole install was done the following week - ducted system and two split systems. Install team of Yunus, Gokhan and Emre were outstanding - courteous, clean and knowledgeable - and worked hard. I'm a pedantic customer - and part of the house is very old - they were more than happy to be accomodating and sort any issues I raised. Very pleased with the quality of the work and the team - would highly recommend.
Rod W.
I needed to replace a reverse cycle central air-conditioning system that was about 20 years old and add a smaller new system in a different part of the house. I decided to use Alliance Climate Control after doing some research meeting their salesperson at my home in a very productive exchange.
Gerald B.
Special thanks to Tommy, Nick and Miguel for their excellent work
jessie R.
This was my second aircon clean and service from Alliance. Both times the techs were on time, pleasant, and knowledgeable. I wouldn't now use anyone else.
Peter H.
What a pleasant and professional service Alliance Climate Control provided. From the initial phone contact to the friendly, courteous, and efficient service provided. Alex arrived on time checked both units and kept me informed at all timers as to the best solutions. We then had BJ, Daniel and Brandon install a new Daikin unit. As mentioned when it was booked they covered furniture and did a clean install. Zac also deserves a mention as coordinating and ensuring a smooth operation made it seamless. Thank you Alliance Climate Control for making it an professional experience, highly recommend.
Scott K.
The Alliance Climate Control team, from engagement, quotation, installation and customer support was excellent. The ACC install team of Tom, Nick, Miguel, Matt, Benjamin and JJ were very professional in all aspects of the install and commissioning. Would most highly recommend ACC.
Inti R.
Tommy and Nick were absolute legends, they did an aircon relocation from my living room to my attic. both Tommy and Nick did the job with no fuzz, fast efficient and more importantly quietly. I was working from home through the job, and they needed little to nothing from me once they were setup and ready to go. The aircon was moved professionally. Thank you!
karen S.
Great service. Very professional. Highly recommend.
Mary J.
BJ,Daniel, Brandon Aysa, Zac Peter & Aden.
From the first phone call thru to quote job & clean up to showing me the easy to use remote. Have all been wonderful, professional installation fantastic & very thorough with prep, covering furniture and clean up afterwards.
This was a very considered purchase.
I'm so happy I chose to go with Alliance.
Philip M.
BJ, Daniel, Brandon, Chris Divis & Zac were all very professional the service we received was excellent. Highly recommend them. Good Job All Round.
Maurice N.
Outstanding staff. Punctual, clean, knowledgeable and efficient.
chi-kan W.
Your installation has been mostly excellent but very recently I noticed that the condensation has not been flowing into the evaporation tray. There is a short horizontal section of the pipe for discharging the water into the tray but the water, instead of dripping into the tray, tracks backwards and drips onto the floor. I have remedied this by attaching a plastic cone to that short horizontal section. In the future, ensure that the last short section of the pipe SLOPES into the tray to ensure that water doesn't track backwards.
Lia
A big job completed with ease and professionalism by ACC, so happy my place is now cool! From James Greene’s initial quote to the install team of BJ, Daniel, Brandon, JJ, Vash, Blade and Giannis, plus Zac and Eric and Will and Joe behind the scenes, everyone has been delightful to deal with. Highly recommend
Gennaro S.
Professional Team , efficient and very pleasant to deal with . Wonderful service by Tommy ,
Nick and Chris , Vash and Blade .
Brett D.
We have a two level house with 5 bedrooms 3 bathrooms lounge room family room and kitchen
We needed a system to do the whole house
I had two quotes both of which the gentlemen giving the quote were at my house for no more than 30mins.
Darko from Alliance came and was totally professional and inspected the house roof cavity and all. He then sat down with me and discussed the system that would best suited, he explained the installation process and how Alliance worked in all he was here for over 2 hours. It is because of Darko knowledge and commitment we decided to go with Alliance.
The installers arrived on time being Matt,Aaron,Mahalo and Andre. They worked here for 3 days putting in the system. We were totally impressed with the way they worked and the quality they delivered. They were also courteous, respectful and ensured they cleaned up after every day work. TRUE TRADESMEN

WE could not rate the people we have dealt with from Alliance Climate control, highly enough. From the time of quotation to the time of installation we were constantly informed of what was going on.

So from us its a 5 out of 5 for everyone involved from Alliance Climate Control in giving us a great Air Conditioned house
Sam D.
Great service options and very detailed work. Highly recommend
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Why Choose Alliance For Your
Air Conditioner Repair Needs?

If your air conditioner needs repairs, then you need the professionals at Alliance Climate Control. With decades of experience in the AC industry, we have the knowledge and expertise to get your air conditioner back up and running quickly.

Neglecting air conditioner repairs can lead to more extensive damage, so don’t hesitate – contact a climate control professional when you see signs of trouble. The local technicians here at Alliance Climate Control are always on hand to offer expert advice, so help is never far away. 

With affordable rates, quality workmanship and countless 5-star reviews, you can rely on Alliance Climate Control for the best service across Greater Sydney. 

To book an air conditioner repair with one of our friendly technicians, call Alliance Climate Control today.

Offer Save

$55

When you book online,

on service work*

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

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

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