Factory Certified
AC Maintenance in Sydney

Your Trusted Partner

We often get asked about whether it is better to repair a certain unit, or just replace it. There are multitude of variables around this question, some of which are how old the unit is, the warranty conditions, some models are more expensive to maintain than others. The differences between repair and replacement can be subtle, yet have a strong impact on the role the technician plays in service of your ac unit.

You may find yourself wondering, in the event of air conditioner breakdown, whether you need to repair or replace the faulty components of your unit. The differences between the two tasks are subtle, yet will have an impact on the role the air conditioning technician plays during service of your framework. Repairs can sometimes involve replacement of micro components, whereas some larger, easier-to-access components simply require replacing on a semi-regular basis. Repairs can also include adjustment or re-alignment of faulty components, and tend to require a more-deft hand than replacements.

Call Us NOW!

The friendly and professional HVAC technicians at ACG Service and Maintenance are standing by, ready to tailor a thorough maintenance program for your air conditioning unit.

Call us NOW on (02) 8021 3735 to schedule an appointment, or request an online booking:

The Importance of Regular AC Maintenance

Air conditioning systems are an investment, and as a home or business owner the last thing you want to be doing is worrying about maintenance or experiencing a complete breakdown. Our maintenance program is for regular servicing of both domestic and commercial air conditioning units.

The first step is to carry out a comprehensive assessment and service of your air conditioning systems. Following this, we can design a customised contract specifically for you. Contracts go for 12 month, and automatically roll over unless we are advised otherwise in advance.

You will receive a reminder prior to each scheduled maintenance visit, and your system details will be logged on our database, so we have a record of any issues or repairs which have been carried out.

Regular Air Conditioning Maintenance will Benefit You by:


Filters need constant cleaning. Cleaning is necessary due to the build-up of dust and other particles absorbed by the mesh housed between the supply unit and the conditioner. Some air conditioners will require replacement filters on occasion due to serious wear and tear.


Any leaks in your refrigerant coil can be patched up with sealant. This is only a temporary fix, however, and most air con repairmen will recommend replacing the entire coil. Leaks in the refrigerant run down the levels quickly, which can result in your ac unit blowing too hot and burning up.


(Cleaning) – Just like the filter, the drain line can become blocked with detritus floating in the outflow of liquid to outside. If a blockage becomes too serious, it can cause backflow up the pipes and leaks in and around your air conditioner. Regular cleaning is needed.


(Breakers, fuses and capacitors on the motor and worn contractor) – Breakers and fuses safeguard the unit’s motor and compressor from receiving a current that is too strong and that can result in overheating. The breaker and fuses are smaller components of the motor, so replacing them is considered repair work.

Condenser Coils

(Cleaning) – Condenser coils are located outside in the air supply unit, so they can become dirty following bad weather. They can usually be hosed down, but if they get too dirty, they may require cleaning with chemicals.

Regardless of whether something within your air conditioning framework needs replacing or repairing, the Air Con Guys will be able to service it without any worries.


Refrigerant is compressed liquid that cools the air supply provided to your home by your ac unit. It is slowly dispersed in the process of cooling your home over the years, and will eventually require replacing.


(If not working, buy new one) – The compressor applies force to the refrigerant and propels it through the evaporator and condenser coils to transform heat in the atmosphere into cool air flow. If the compressor is not working your air conditioner will fail to cool your house and will eventually seize – replace immediately.

Evaporator Coils

Evaporator coils absorb heat in the air and send it back as cold air. These can become corroded if located outside. Evaporator coils should be checked and, if necessary, replaced every three years.


ACG are an extremely professional air conditioning company. Their technicians are punctual, knowledgable and offer excellent advice and service. My property management company began using their services 12 months ago and we continue to be impressed with their work day in and day out. If you need air conditioning installation, service and advice, these guys are the best in the business.
- Tanya Viner -
Hi Wade, I am very happy with the job done by your installer, Louis and his assistant, Dave. Equally very happy with your electrician, Robbie and his assistant. Their work is highly commendable. Your company exudes professionalism and efficiency to a high degree in terms of coming on the appointed date and time, installing 2 air conditioners, checking on the wiring of the 4 other air conditioners and finishing the work in just a day. This is the second time I hired your services - Firstly my home and secondly, my son's home. In both cases you have met and exceeded our expectations. All the best!
- Juan Juarez -02/03/2020
The entire ACG team are brilliant in every aspect of customer service experience. Ease of inquiries, friendly and responsive online response and phone calls. The team of Ibrahim and Jake accompanied by their boss Wade came to my home this afternoon to ensure they can complete the last job for the day. Despite running behind schedule, the guys were courteous, hard working and takes great pride in their quality workmanship and respectful of customer's home. Highly recommended and trusted company. Thank you for a positive experience.
- James Lim -10/03/2020

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