Cooling & Heating
Services Mosman

We had our Air Conditioning serviced by Alliance. They were great. Christiam was professional, polite, careful, clean and got on with the job at hand. I would highly recommend them. Great service all round.

Ahmed, Louis, Cris and Liam did a wonderful job. I felt comfortable leaving them unsupervised in our home while we were out at work and they always gave me a full overview of the day in the morning and a report at the end of the day. They tidied up at the end of each day even though it was a 3 day job. Very happy - and now nice and warm too!

Very professional installation of ducted reverse cycle air conditioning system. Installation crew were excellent! Thank you Matthey, Needy and Carlos! The large job completed in two days. Turned up on time, used drop sheets, cleaned up afterwords very well. Good end-to-end customer service. Recommended!

Great experience with Charles - excellent communication, knowledgeable and proactive. Would highly recommend Charles for anyone requiring electrical repairs in their home.

The two technicians who came to do a major service on our split air conditioner was exceptionally professional thorough and extremely knowledgeable- I recommend this company very highly

Shadi, Ilch and Christian installed my air conditioning system recently and I was very pleased with their professionalism, courtesy and thoughtfulness. They arrived on time and got to work straight away. They contained all the mess and cleaned up before they left. I highly recommend their work.

Excellent service. The guys helped me learn a few new tricks with my control panel as well. Explained in detail what they were doing and how it works, and after checking the air distribution through the ceiling vents, went back into the roof to tweak it just right.

The customer service was excellent and the installation for my new air conditioner was very professional and prompt..
All of your staff that I encountered through the process were very friendly and knowledgeable.
I would highly recommend your services to my friends and Family.

Liam was punctual, respectful, discussed options. Was tidy and efficient. Have been using Alliance for years and recommend them extremely highly.

I’m so glad I chose Alliance for my air con. From the consultation to post installation after care, everything has gone perfectly. Alliance has consistently delivered on their promise; they’ve turned up when they said they would, completed the job in the stated time frame and made sure I was happy with the work. The electrons even installed a towel rack for me - because they were there and they could. Nothing is too much trouble for these guys! Fantastic quality job and service.

From the get go, my experience with Aysa was great. Very patient in answering all my questions through the initial consultation.

Huge thank you to Tommy, Moe, Shaad and Gokhan for their professional work in installing the multi split system air conditioning! They were professional from arrival and took care to carefully prep my place before the job and took a lot of care in cleaning after. They explained everything and made sure I was comfortable with everything.

Definitely recommend Alliance - I will be using them again for future jobs.

Chris from Alliance Climate Control knew what he was doing, was thorough and very respectful and courteous.

Awesome work from Harry, Liam & Ioannes
Quick and efficient patching - thankyou.

On time, thorough and very professional. Mitesh and Zach were great. Highly recommend and we will be using them again.

Big thank you to Harry, Tommy, Shaad, Aden and Gokhan for a trouble free installation. The team were punctual, friendly, efficient and tidy. Answered any or all questions that I had. Overall it was a great experience.

Great service from first call to installation. Charles and James have done a great job. Worked carefully, provided lots of information, kept us in the loop about what was being done. Everything tested and system explained. Cleaned up after. Thanks

Garret, Sayed and Daniel did a great job. Very courteous and professional. They ensured we agreed with positioning and protected our carpets and other property from damage. I highly recommend Alliance.

Jason and Nic were wonderful. Fixed everything and then some. On time, timely, careful, considerate, polite and tidied up beautifully.

They were also incredibly tolerant of our very noisy dog and his less noisy brother. Will definitely be back if we need anything. Thank you so much.

Just had my initial inspection with a young man called Kyle. He was knowledgeable, polite, informative and friendly. I have locked in a date (of my choosing) for work to be done. I hope the technician who does the work also has the A1 customer service skills of Kyle. The lady i originally made the appointment with also had the A1 customer service skills. So far, so good Alliance - thank you!!!

Ivan, Maisam and Mosa did an amazing job installing our new AC system. They showed up on time, they were courteous and clean operators and delivered a very neat finish. They did a really nice job fitting it in around our old terrace and were sympathetic to the outside appearance. The whole experience from initial consultation and sales process with Jake, to installation was seamless. We would highly recommend.

very impressed with the work of one of Alliance's team, V the team leader and Kim, Eric and electrician Charlie and sales Liam they are good blokes and handled my job with care and confidence, they know what they doing and job delivered seamlessly.
I found this company very organized with their structure and definitely recommend to anyone who has needs for it.

The team at Alliance are excellent. Dylan serviced our units today and was friendly, punctual, and transparent about costs from the outset. He took the time to explain everything clearly and made the whole process straightforward. Thanks again 🙂

Loannis and Liam did a great job with patching up the hole that the team the day before left after installing my new AC. The team overall were a pleasure to work with. Will definitely use their services again.

Second time I've used these guys.
It's the second time they've been prompt, friendly and have done a terrific job. Great service.

I recently used Alliance Climate Control to replace an old, broken air conditioner with a new ducted system. While their quote was higher than others I received, the level of professionalism and the final result made it worth every cent.
Our home has a very narrow roof space and significant temperature imbalances between rooms. Most companies simply told me what I wanted was unachievable. Jake, however, took a different approach. He was incredibly thorough—measuring everything and being completely upfront about the challenges. He walked me through several scenarios of what might happen once the roof was opened, giving me total confidence in their expertise.
The installation team, Yunus and his crew(Brody, Can and plasterer Liam) were professional, courteous, and went out of their way to accommodate my requests—including moving the outdoor units to a new location at no extra charge. Yunus made sure that each detail was perfectly executed.
The outcome is way better than our old system; thanks to Yunus, the new ducts are much better placed and the zoning works perfectly. The results actually exceeded my expectations.
I highly recommend Alliance Climate Control for anyone who wants peace of mind and a team that is willing to tackle difficult problems with honesty and skill.

Excellent and attentive service. The team were professional and took care in ensuring everything was working and tidied up before they left. They showed a great deal of patience in getting the app working on our mobile phones. We are happy with our new reverse cycle air conditioners and happy to very highly recommend them.

Gave our AC a tune up, pricing was moderate to high, but the job was done well. They were also able to quote up and carry out extra electrical work.

Routine service of a/c units. Alliance Climate Control had initially provided a 3 hour time window; Jason texted a 1/2hour prior to arrival and he & Nicholas were on time. They were attentive in listening to and understand my initial concerns. They were efficient and tidy in their work and then explained clearly what they had done. Overall excellent service. Barry

The technician was on time, professional and competent. We were completely satisfied with the maintenance service,

Fast response time, lovely people, respectful and hardworking techs. No complaints, highly recommend.

I received outstanding service from Jake, Ahmad, Louis, Callum Yas and Loannis. Highly professional, reliable and effective service from the inital quote to installation and then follow-up. Alliance was my highest quote but so worth every cent which speaks volumes about the peoduct and service I received. Absolute value for money. They went above and beyond to make me feel satisfied. If you want high quality... choose these guys... you will not regret it. A ten star rating from me!

Technician was great! Worked hard and was super informative and tidy

Kody was great explained everything that was going to occur. No hidden extras. Great communication and service

10/10 customer experience and absolutely would recommend. Best tradies we've ever come across! Jason, Nick, Alex, Kyle were awesome and highly competent. After a lot of stress with 2 other aircon companies unable to solve our sensor and filter issues, Alliance came in and did an amazing job. Special shout out to Alex for diagnosing the problem so quickly, and to Jason for going above and beyond to fix it. Will be using them for the rest of our lives!

Matt, Carlos and Meedy installed the replacement ducted air con system at my home in Mona Vale. They went about it quietly, professionally and very respectfully. No dramas. Always available to answer my questions and consulted with me when decisions needed to be made. There was no fuss, just steady progress and completion on time. Exactly what I wanted.

Great professional work by whole team. Theo, Johnathon, Yasin and Juan. Will definitely use again

Great job . They were punctual, respectful, clean and would highly recommend.

Exceptional team led by Andre with support from Zac and Loannis. Amazing professionalism and workmanship. I will be using this team in the near future for installation s.

A. The ease speed and efficiency of organising a quotation prior to the busy Easter period was trouble free. Harry was articulate, polite, well versed and importantly, punctual.

B. The installation of the two air-conditioners replacing a dilapidated existent set up, was always going to be a challenge and indeed a potential nightmare.

Despite this the team of BJ, Theo and Juan were professionals in the true sense, exhibiting superb communication skills, order and cleanliness from the word go.

The team’s combined technical attributes, attention to detail, ability to work in harmony and answering questions Informatively and logically, is something rare in this day and age.

C. During the entire process, from the initial phone call to the final payment, both Luka and Eric back in the office displayed unrivalled efficiency and precision. There was never any confusion.

In summation, I regard the entire team at Alliance Climate Control with the highest regard and take my head off to the crew. Many many thanks.
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They did a great job, minimal inconvenience and everything was left clean and tidy, would highly recommend them