Frequently Asked Questions

1. What services do you offer?

Coastal Air Conditioning is a full-service HVAC company offering a variety of services for both residential and commercial customers. Our services include:

  • Installation and replacement of air conditioning and heating systems
  • Repair and maintenance of air conditioners and heating systems
  • Duct cleaning and repair


2. What brands of air conditioners and heating systems do you carry?

We carry a wide variety of brands of air conditioners and heating systems, including:

  • Temperzone
  • Daikin
  • Mitsubishi Electric
  • Hitachi


3. What do I do if my air conditioner is not working?

If your air conditioner is not working, first check to make sure that it is plugged in and that the thermostat is set to cool. If it is still not working, you can call us, and we will send a technician out to your home as soon as possible.


4. What are your hours?

Coastal Air Conditioning is open Monday to Friday from 8 am til 4 pm, and closed Saturday and Sunday.


5. What is your service area?

Coastal Air Conditioning is proud to serve the entire Central Coast region, from Wyong to Gosford and all points in between. We service: We are happy to help residents and businesses in the following most populated suburbs:

  • Gosford
  • Erina
  • Woy Woy
  • The Entrance
  • Tuggerah
  • Wyong
  • Ettalong Beach
  • Terrigal
  • Avoca Beach


6. What are some signs that my air conditioner needs repair?

Some signs that your air conditioner needs repair include:

  • It is not cooling your home adequately.
  • It is making strange noises.
  • It is leaking water.
  • It is not turning on.


7. What is the best air conditioning system for my home?

The best type of air conditioning system for your home will depend on a lot of factors, including the size of your house, the climate in your area, and your budget. We offer a free consultation to help you determine the best system for your needs.


8. How often should my air conditioner be serviced?

We recommend that you have your air conditioner serviced at least once a year. This will help ensure your system is running efficiently and prevent costly repairs.


9. In Australia, the terms “air conditioning” and “HVAC” are often used interchangeably, but there is a slight difference between the two.

Air conditioning is a system that cools the air in a room or building. It removes heat from the air and transfers it to the outside. Air conditioners are typically used in the summer to keep homes and businesses cool.

The most common types of air conditioners in Australia:

  • Split systems
  • Ducted systems
  • Portable air conditioners

HVAC stands for Heating, Ventilation, and Air Conditioning. It is a system that provides heating, cooling, and ventilation for a home or building. HVAC systems typically use a combination of air conditioning and heating systems to provide year-round comfort.

The most popular types of HVAC systems in Australia:

  • Ducted reverse cycle
  • Hydronic heating
  • Evaporative cooling


10. What is a WiFi smart AC remote/controller?

This device connects your AC to your WiFi network, allowing you to control it remotely through your smartphone, tablet, or even your voice assistant.
Here’s what you can gain:

  • Control your AC from anywhere: Adjust temperature, set schedules, and monitor energy usage even when you’re away.
  • No more lost remotes: Always have access to your AC controls through your mobile device.
  • Smarter comfort: Automate your AC to adjust temperatures based on your schedule and preferences for optimal comfort throughout the day.