Window Air Conditioner Installations & Servicing

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Air Conditioning
Installation

Air Conditioning
Replacement

Air Conditioning
Service

Air Conditioning
Repairs

What is a Window Wall Mounted System?

A window wall-mounted system, otherwise known as wall-mounted or box air conditioners, is a simple and convenient way to deliver airflow to any room of your choice. Once installed, this singular unit can provide a comfortable climate to any living space, office, or bedroom.

Designed to be visually unobtrusive and completely self-contained, the window unit comes as a robust steel cabinet. All necessary components are available here for convenient servicing, making installation efficient by requiring one access point.

If the unit is being retrofitted to an existing building, it will generally fit within half the width of a normal window space. If being installed in a new structure, or where permissible to make an aperture in an outside wall, it may be located wherever most suitable.

Window Wall-Mounted Air Conditioning Services

When you need temperature control in a single room or small space, consider the cost-effective solution of window air conditioners.

Alliance Climate Control has years of experience in installing and servicing a wide range of systems, including window units. The addition of our extensive training and dedication to customer satisfaction allows us to tailor window system offerings to you.

Installation

Window Wall Air Conditioning Install

Most window air conditioners, including those provided by Alliance Climate Control, can be installed in a window frame or wall. We have the necessary training to provide clean, timely, and long-lasting installation services, regardless of the unit’s location.

Alliance provides all customers with a detailed, on-site assessment before all installations. That way, we determine the best location for your new unit that provides optimal airflow year-round.

Book a consultation and allow one of our local teams to promptly answer your call. We’re always dedicated to going above and beyond for your HVAC needs.

Replacement

If window air conditioners aren’t providing the same level of climate control or energy efficiency, even after repairs, it may be time to get your unit replaced. Fortunately, Alliance makes the entire experience as simple and hassle-free as possible with our local technicians.

On the day, we will handle all the hard work that comes with removing and replacing an existing window air conditioning unit. We dispose of the old unit for you and install the latest system right away, providing any necessary work to prepare your home for this new addition.

Alliance even offers beneficial rebate offerings for those interested in saving more when they replace their old AC. Check it out to see how you can save today on your scheduled removal.

Repairs

To ensure your window air conditioner provides cooling and heating services throughout the year, don’t hesitate to book a repair appointment. It’s a cost-effective solution for many units only experiencing minor issues, especially when compared to the more costly work of replacement.

When you notice symptoms such as loud noises, bad odours, leakage, or other concerns coming from your AC, you may need repairs. Alliance ensures your system is working at peak performance, assessing critical components functionality and that filtration mediums are free from dust or pollens.

If you want to save more time, money and concerns by maintaining your existing unit, consider a repair appointment.

Cleaning

The values of Alliance Climate Control aren’t just centred around ensuring customer satisfaction and excellent HVAC work. We also pride ourselves on providing environmentally-friendly operations, regardless of the window AC work required.

This can be seen in our approach to professional HVAC cleaning. Our focus is on creating a home that’s air-pollutant-free and has an optimal AC system upon completion. We also happen to do this work with eco-friendly cleaning products tailored to fully restore the operation of the fan coil and filter in your window system.

An Alliance Eco-Clean service is recommended for your system at least every alternate year, to keep it in top operating condition. That’s because it best prepares your window AC for high heat loads during summer and the need for consistent warm air during winter.

Maintenance

Regular HVAC maintenance ensures your system operates at its full potential with minimal wear and tear. Window wall-mounted systems often sit in the framing of your home’s windows, exposing them to outside elements. Hence, scheduled maintenance is also crucial for extending the life of the air conditioning system.

The convenience of having all components in a single unit makes this an efficient job when performed by Alliance. So, schedule a visit from one of our local technicians and enjoy the following features of professional maintenance:

  • Extending your unit’s warranty
  • Lowering overall energy costs
  • More reliable performance over the seasons
  • Prevention against future issues
  • Reduced number of AC breakdowns
  • Visit from a licensed electrician for any additional installation work

Why Choose a Window Air Conditioner for Your Home?

With plenty of air conditioning systems on the market, why choose a window unit to install in your home? For many Australian households, this singular unit addition may be preferred due to the following factors:

 

  1. One of the easiest systems to install, whether that’s through new or retrofitting existing AC installation services
  2. Due to the simplicity of the installation, it’s one of the quickest services possible, especially when done by HVAC experts
  3. All components of the system are contained within a robust cabinet, keeping them safe while also providing a convenient access point for all repairs, cleaning and maintenance
  4. Heated air exhausted from the condenser cooling process is easily vented to the room of your choice
  5.  Oscillating vanes provided in the cabinet direct conditioned air within the room from side to side or up and down, providing flexible airflow as needed
  6. The unit can often be plugged directly into a normal single-phase household power point, meaning no additional electrical services are required
  7. Operations are known to be quiet, with sound levels not exceeding 50Dba to create a tranquil environment
  8. The simplicity of the model and its accompanying services often makes it more cost-effective both short- and long-term than other systems

If you want to know more about how this product can potentially aid your home’s climate control, our team is always ready to offer expert insights. Feel free to give us a call, and we can assist you in assessing what kind of air conditioning support your household needs.

Other Air Conditioning Systems We Specialise In

Supply Your Home With Reliable Climate Control Through Alliance

The selection of the most suitable window system is imperative to provide the most comfortable living space. Alliance Climate Control has the expertise to design a system that meets your exact needs, and the training to supply reliable air conditioning services.

We’re dedicated to offering Sydney residents the HVAC proficiency they deserve. That’s why our technicians will be with you every step of the way; from on-site assessment, construction and beyond. That way, we make sure the entire project is completed and operating to your absolute satisfaction.

We can also schedule future follow-up visits after 6 months or one year to check the system’s operation, clean the filters and other critical elements. We recommend completing this service on an annual basis to maintain a comfortable home with your window AC.

Reasons to Trust ACC With Your Home

Credited Technicians

Locally-trained and insured technicians for your peace of mind.

Brand Partnership

We're partnered with the biggest HVAC brands in Australia for your convenience.

Transparent Costs

Upfront window air conditioning installation costs with no hidden fees.

Dedicated HVAC Service

Alliance always goes the extra mile for 100% service satisfaction.

Lifetime Workmanship Warranty

Every installation job comes with after-care benefits for a lifetime of optimal AC performance.

Sydney-Wide Support

Residents across Sydney can receive timely window wall-mounted AC services.

Major Brands We’re Partnered With

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What Our Community
Is Saying About Alliance

Alliance Climate Control - Heating, Cooling, Electrical
Based on 2383 reviews
Anthony H.
Fast professional job installing air conditioner by Shabi and Louis.
Chris A.
Huge thanks to Charles and the team at Alliance. I had my air conditioning installed today and couldn't be happier with the result. Thanks guys !
Girven G.
Tommy, Kim and Meedy show up exactly on the dot they informed me, came in like old mates whos dropping by to install your aircon. Super friendly, explained really well about the AC youre installing. clean and quick job, no dramas. Thanks for the awesome job.
Wendy D.
Exceptional level of service provided by Alliance to repair our Air Con unit. From quoting to communications to completion of job - this company goes above and beyond. Highly recommended
Mark G.
Dara and Guan did a great job installing an air in at our premises yesterday. They did a great job. They were competent, confident, efficient joyous people. If excellent service as well as a great product are important to you, I strongly recommend this company to you.
roslyn G.
Wonderful workers. Efficient, polite & hard working
Vicki B.
I am so impressed by Damon from Alliance Climate Control who has just finished servicing my 3 air conditioners. He was efficient and polite and was very willing to answer my questions and his answers gave me confidence that he knew what he was doing. So impressed I’ve signed up for a 3 year maintenance plan. I highly recommend this bright young man and the company itself that presents as very professional.
Leesa E.
VY - Luaw- Miguel were amazing! Great professionals.. thanks Team! The outdoor installation and in room look great!
Patricia G.
Excelente work very profesional. Highly recommended.
Alexey B.
Amazing maintenance service one year after the installation. The technician arrived on time, on the dot effectively, and spent 2 full hours cleaning filters and aircon unit bodies, checking everything etc. The units and filters were in a good condition, but this demonstrates the thoroughness of the service.
Andrew L.
From quoting to install, the Alliance team were helpful, professional and accommodating. They were competitive on price and went the extra mile on customer service
Karen H.
Damien serviced all 5 of our conditioners which took most of the day. Cheerful, friendly and efficient. Quietly got on with the job.
Neil “Brownie” B.
Kyle did a terrific job today servicing 3 split systems, great communication, very tidy, and good explanation of everything he found.

I also had Ivan Mosa and Brody install a new system in my bedroom. Very clean and neat job, terrific communication and I’m super happy with the results.
Daniel H.
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!
Michele
On time, excellent communication when arranging aircon service. Friendly, efficient knowledgeable and courteous technician (Damon).
Jerry B.
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.
Simon van W.
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..
Ingrid W.
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!
Inga P.
Great I am so happy, finally can get a good sleep.
Vras K.
Excellent service by friendly and knowledgeable technician
Christine W.
Installation went very well. Great crew of happy workers. Efficient and polite.
Thalia M.
Both team members were really lovely, polite and did a great, honest job. We were really happy with the service we received.
Aileen H.
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!
Joanne L.
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.
sam B.
they were 100% and cleaned up really well. They came back a day later to make sure everything was OK. Thanks!
Danuta W.
Great service, professional and friendly :).
David S.
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! 👏
David
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! 🌟
Natasha
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.
Tehrese J.
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 !

Frequently Asked Questions

While it’s possible to install window air conditioners yourself due to their simplified design, it’s really not recommended. AC installation is best done by experienced professionals to limit potential damage or danger in a household.
Contact Alliance Climate Control to access reliable window air conditioner installation that lasts a lifetime.

The cost of installing window air conditioners depends on multiple factors, including: the unit’s size, the amount of installation work, the addition of HVAC features, the electrical work required, the condition of the window framing, and more.
Fortunately, Alliance provides upfront quotes for all installation work. We work with you to determine which window AC fits your budget for efficiency in installation.

If you have an existing standard household outlet within reach of your installed window AC, you likely won’t need a licensed electrician for the job. However, you may need to consider a professional’s aid if the unit’s too large for the outlet’s capacity, it needs more energy, or a new outlet needs to be added.

Our team also contains trained electricians capable of fulfilling these window air conditioning installation needs.

Since a window unit is typically used to cool or warm a singular room, they are often cheaper to run than other, more extensive AC systems. Yet, if you are interested in cooling or heating an entire home with window ACs, this may begin to add up more than other systems.

With regular professional maintenance, window air conditioners generally last between 8-10 years. The exact length differs depending on the quality of the unit, its environment, and other factors such as continuous use or a lack of cleaning.

Due to the need to install window ACs into window openings, this can create a blockage of natural airflow and sunlight. Once installed, window units are also non-portable, making them more inflexible than their simple design would suggest.
Additionally, these systems are usually only suitable for climate control of a single room. So, if you want a more adaptable or expansive AC system, consider discussing your HVAC needs with Alliance.

While it’s not overall bad to leave them running if it’s necessary for your comfort, some disadvantages come from operating a window AC throughout the day include:
  • Higher energy bills
  • Increased wear and tear of AC components, possibly leading to expensive repairs and/or a shorter lifespan
  • Risk of components freezing up if constantly cooling, and alternatively overheating if pushing out warm air
If you want to use an AC running all day, discuss your potential options with the HVAC experts at Alliance. We can help you find the best match for your air conditioning needs.