Ducted Gas Heating Replacement

The professionalism blew me away. They were amazing from the quotation process through to the installation. When there was a bit not scoped correctly they honoured their fixed quote. Could not recommend these guys anymore espessially Yasin, if there were 10 stars I would give it to them!

On time, excellent communication when arranging aircon service. Friendly, efficient knowledgeable and courteous technician (Damon).

Rodriguez, Ivan and the Alliance Team were very professional and did a great job explaining everything to me and cleaned up thoroughly after the job was done. They are a credit to the Alliance team.

We installed our air conditioning 5 years ago. The installation was perfect and we have had no issues in all the time we have owned the system. We had to get them back because one unit was leaking water. They were prompt to attend to the problem, admitted that some of the problem was their issue and they would cover the fix themselves.

They owned the problem. They are always very polite. The engineers they send out are highly professional, leavve no mess, take off their boots and are good at communication with the client.

I've recommended them to many people..

Charles & Dara installed a new air conditioner in the loungeroom of my period home in Sydney's eastern suburbs and did an outstanding job. They talked me through the whole process and checked that I was happy at every step. They were also very clean, used loads of drop sheets and even vaccumed which was such a pleasure to see how much they cared and Dara quickly problem solved when it was necessary to alter plans without delay or extra cost. Charles also spent the time to carefully show me all aspects of the units operation and thoroughly checked through all its functions leaving me without any worry. This team is amazing and offer quality workmanship and peace of mind at every stage at a good price. I will definitely be using them again! In fact I have planned another air conditioning installation in 2 weeks!

Great I am so happy, finally can get a good sleep.

Excellent service by friendly and knowledgeable technician

Installation went very well. Great crew of happy workers. Efficient and polite.

Both team members were really lovely, polite and did a great, honest job. We were really happy with the service we received.

Alliance installed our air-conditioner. The whole team did a great job, but I specially have to acknowledge the electrical team who were given a bit of a difficult task running the wiring as we didn't have access under the floor. However they were meticulous and installed it to perfection. They were very thoughtful about covering areas of our kitchen so that it wouldn't be covered with dust too. We really appreciated the considerate nature of how this was managed. Many thanks!

We are very happy with our aircon installation (multi-split system). Alliance did an amazing job and were very thorough. Thankyou to Aysa for answering our lead up queries and to Tommy, Gokhan and Miguel for their professional, friendly and efficient work on the day of installation.

they were 100% and cleaned up really well. They came back a day later to make sure everything was OK. Thanks!

Great service, professional and friendly :).

BIG thank you - Eυχαριστώ - to Giannis (Yiannis) for patching up a few spots after our air con installation! As with any work done on an older home, we expected a few areas might flake or chip, totally understandable.

True to their word, Alliance Climate promised that if anything was scratched or damaged during installation, they’d fix it afterwards. Sure enough, Giannis reached out and came by to repair and paint everything back to good-as-new.

This guy is fantastic, he patched up everything perfectly!
Thanks again, Giannis, and thanks to the whole Alliance Climate team for standing by your service! 👏

HUGE shoutout to the Alliance Air Climate Control installation team — Vy, Luan, Kaspar, Harry (the MASTER ceiling cutter for old houses!!), Liam, Charlie, the electrician, and their co-worker — every single one of them was terrific and so friendly over the two days! 👏

We’ve just had our 5-zone ducted system plus 2 split units installed, and my wife and I couldn’t be happier with the result. Previously we had a gas heating system installed by another company, and it wasn’t done satisfactorily. The difference with Alliance has been night and day.

What really stood out to us was the strong team feel — they work seamlessly together, communicate clearly, and talk you through each step of the process. They also came up with excellent ideas to maximise the efficiency of our units.

A big thank you as well to James Greene, who provided the initial quote. He was highly professional, patient with our questions, and came up with a plan that matched exactly what we were hoping for.

Needless to say, my wife and I will be recommending Alliance Air to anyone looking for air conditioning installation — an outstanding experience from start to finish! 🌟

I wanted to take a moment to share my exceptional experience with your company regarding the outstanding professionalism exhibited by your team. From the moment they arrived they demonstrated a strong commitment to cleanliness and respect for my home.
Throughout their visit they maintained this high standard and displayed a polite demeanor addressing all my queries with effective solutions.
I specifically want to express my gratitude to Shazim and his associate. His dedication to providing excellent service did not go unnoticed and is greatly appreciated. Thank you for providing such a professional environment.

Charles was a super star sparky who resolved our electrical needs with confidence, knowledge & experience. Charles has a great combination of technical skills, problem-solving skills and people skills. Thank you Charles. Thanks also to your capable apprentice (sorry for not catching his name, but he is studying hard at Kogarah TAFE). Polite, knowledgeable, thorough & professional job. Highly recommend this team and company !

The ACC team recently replaced our old HVAC ducted system with a new Fujitsu system, and we are super pleased with how the whole process panned out!

The initial inspection by Jake was prompt, thorough and very informative. He answered all our questions clearly and offered us the various options in a format that was easy to digest.

Once we locked in our desired option, we were happily surprised by how quickly we were able to lock in a mutually suitable installation date.

The installation team led by Garrett were top notch! Daniel, JJ, Harry, Qais, Aden and Vish were all excellent, professional and meticulous at doing the job to a high standard. The team was quick to find solutions when issues arose, left the place spotless and ensured that the job was completed in 1 day which minimised any inconvenience to our usual work schedules...

We highly appreciated that they have an in-house team of various trades (plastering, electrical...) to handle any unexpected or anticipated collateral issues that might arise during the installation process.

The system is working great so far and we are super pleased with our choice!

Highly recommend choosing Alliance for installing your air con!

Great service from the whole team. From my first contact with Alliance, they were responsive, professional, polite, thoughtful and prompt. I received great advice and they completed my job to a high standard.

Qais and his team did a great job installing our split system, with two head units, into our second floor unit. It was not a straightforward install but they went out of their way to ensure that the units were installed to meet our expectations. We were also happy with our interactions with Aysa and the electrician Jiayi during the planning phase and installation. Everyone was polite, professional, and worked hard throughout the day to get the job finished. Thanks all!

Shazim & Brandon were timely, thorough, and did a great job. Fixed the problem and provided top feedback. Highly recommended.

The alliance team was absolutely amazing from start to finish!
We struggled getting appointments from other HVAC vendors who came in and gave us estimations that were completely out of sight and then with the assistance of Catherine, we were able to schedule, a fantastic appointment with Alex, which resulted in a new system and installation the following day by an incredibly professional and meticulous installation team
No need to search for any other trades, this one is the best and don’t settle for less!

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.

The technicians did an excellent job in installing the new HVAC Daikin system. We are happy with the professionalism and workmanship carried out by the company staff. Thankyou.

Lovely team, their quoting guy was lovely and the team were in and out quickly with no fuss. They get busy though so book in advance!

The company was very helpful and the representative was very friendly and explained to us the two types of air conditioners that he recommended. He made sure we understood how it would be placed and how the water would be kept off our property. The installers and electrician were friendly and did a fantastic job installing and showing us how to work the system. They were accommodating when they needed to stop for a short period during the installation. I would recommend this company and their after service is great if you use them for checking your equipment yearly.

Excellent repair job on both the InSinkerator and cooktop. Carols Silva was very professional, fast, and did the work perfectly. Highly recommended!

I have to compliment the Alliance team for their approach from start to finish. Prompt service call out, no fee for that when it came clear a new unit was required, quote on the day for a new unit, date for replacement within two weeks, great communication at every stage, slick work by Yunus, Gokhan and Veasal for installation. Outstanding.

Great service and installation. A big call out to the installation team led by Yunus and offsiders Gokhan and Veysel. Highly recommended.

Great service provided thanks