AIR CONDITIONER INSTALLATION AND REPAIRS CENTRAL COAST
SUMMER
SPLIT SYSTEM AIR CONDITIONER
Split system air conditioners are perfect if you wish to only condition one area or room of your home or office. An alternative to the standard split systems is the multi-split system, which has multiple indoor units connected to a single outdoor unit. This enables maximum temperature control, with each room controlled individually, it means running costs are kept low, as only the rooms requiring air conditioning are switched on.
Call us today to arrange a non-obligation in home consultation.
DUCTED AIR CONDITIONING
Ducted Air Conditioning systems enable total climate control of your entire home & can be installed into a new build or an existing house.
Ducted air conditioning is visibly less obvious than the traditional split system, as you will only see a ceiling or floor grill in chosen areas of each room.
We are happy to discuss options to find the best solution for you.
AIR CONDITIONING MAINTENANCE AND REPAIRS
Regular service on your Air Conditioning system will save on running costs & will assist with the longevity of your system. We offer a service call out to any make of air conditioner & can arrange a maintenance contract on systems needing more frequent servicing.
We can repair most air conditioners, however, if your system is beyond repair & well out of its warranty stage, we can suggest and alternative replacement to suit your requirements.
Your relied upon Air Conditioning Service & Repair Specialists.
WHAT OUR CUSTOMERS SAY...
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Welcome to Coastline Air – Your Trusted Air Conditioning Experts
At Coastline Air, we specialise in air conditioning installation and repair services across the Central Coast, Newcastle, and Sydney.
As a local, fully qualified, and licensed team, we pride ourselves on delivering top-quality solutions tailored to your residential or commercial needs. Whether it's a simple split system for a bedroom, a multi-story project, or a comprehensive air conditioning system for an office space, we provide exceptional service and expertise with every installation.
We work closely with builders and architects, bringing a deep understanding of the building industry to every project. Our team is experienced in handling all major air conditioning brands, ensuring you get the ideal solution for your home or office.
Known for our reliability, professionalism, and dedication to quality, Coastline Air has built a strong reputation you can trust. When you choose us, you can expect unmatched service, value, and peace of mind, knowing your air conditioning needs are in expert hands.
Let Coastline Air keep your home or workplace cool and comfortable year-round!
Panasonic - Daikin - Fujitsu - Mitsubishi Electric - Arc Tick - ActronAir
SERVICE MAINTENANCE CONTRACTS
A scheduled Maintenance Contract ensures your unit is always running efficiently and safely, saving you costly repairs & downtime.
OEM PARTS or BETTER
We use only the best available parts & components, backed by our 5 Year Manufacturer Warranty.
LOCAL TECHNICIAN
Local Central Coast Air Conditioning technician with all the necessary tools & parts on board.
WHAT IS AIR CONDITIONING?
Understanding Air Conditioning: The Essentials of Comfort and Climate Control
Air conditioning, often referred to as Aircon or AC, is an essential technology that enhances comfort by regulating the climate within an indoor space.
Whether you’re battling the summer heat or seeking warmth during cooler months, air conditioning systems play a pivotal role in maintaining a pleasant environment. But what exactly does an air conditioning system do, and how does it work?
What is Air Conditioning?
Air conditioning is a mechanical system designed to modify the indoor environment by controlling three key factors:
- Temperature: Cooling down a hot space or warming up a cold one.
- Humidity: Removing excess moisture from the air to achieve a comfortable balance.
- Air Quality: Filtering and circulating air to improve cleanliness and freshness.
These systems are used in a variety of settings, from homes and offices to cars, hospitals, and industrial spaces.
Modern air conditioning goes beyond just cooling or heating—it ensures healthier, more comfortable indoor living and working conditions.
How Does Air Conditioning Work?
The primary function of an air conditioning system is to transfer heat from the interior to the exterior of a building (or vice versa in heating mode).
This is achieved through a process involving key components:
- Refrigerant: A chemical compound that absorbs and releases heat as it circulates through the system.
- Compressor: Pressurizes the refrigerant and moves it through the system.
- Evaporator Coil: Located indoors, it absorbs heat from the air inside the room, cooling it down.
- Condenser Coil: Located outdoors, it releases the absorbed heat into the atmosphere.
- Fan: Facilitates air circulation by moving cooled or heated air throughout the room.

The process starts with the warm air inside the room being drawn into the system. The refrigerant absorbs this heat, and the cooled air is then recirculated into the room while the heat is expelled outside.
Key Functions of Air Conditioning
- Temperature Control: Air conditioning systems allow you to set and maintain a desired temperature. This not only provides relief from uncomfortable weather but also supports activities requiring precise temperature regulation, such as food storage or IT equipment operation.
- Humidity Management: High humidity levels can lead to discomfort and mold growth. Air conditioning systems reduce moisture levels, creating a more comfortable and healthier environment.
- Air Quality Improvement: By filtering out dust, allergens, and pollutants, air conditioning systems contribute to cleaner, fresher indoor air, which is particularly beneficial for individuals with allergies or respiratory conditions.
- Energy Efficiency: Modern air conditioning systems are designed to provide effective climate control with minimal energy consumption, making them environmentally friendly and cost-effective.
The Importance of Air Conditioning
- Comfort: Air conditioning makes homes, offices, and public spaces livable in extreme weather conditions.
- Health Benefits: Properly conditioned air reduces the risk of heat-related illnesses, improves sleep quality, and minimizes exposure to airborne allergens.
- Increased Productivity: Comfortable working conditions enhance focus and efficiency in office environments.
- Preservation: In industrial settings, air conditioning is vital for preserving sensitive equipment, perishable goods, and delicate materials.
Types of Air Conditioning Systems
There are several types of air conditioning systems to suit different needs:
- Split Systems: Ideal for cooling individual rooms or spaces, split systems are compact, efficient, and easy to install.
- Ducted Systems: Designed for whole-building climate control, ducted systems are discreet and provide consistent comfort.
- Portable AC Units: Convenient and versatile, these units are perfect for temporary or flexible cooling needs.
- HVAC Systems: Integrated systems that combine heating, ventilation, and air conditioning for comprehensive climate control.
WHAT TYPE OF AIR CONDITIONING SYSTEM SHOULD I INSTALL?
We get that question all the time.
Here's a brief outline of the two main types of Air Conditioners.
Split System Air Conditioner.
Split system air conditioners are perfect if you wish to only condition one area or room of your home or office.
An alternative to the standard split systems is the multi-split system, which has multiple indoor units connected to a single outdoor unit.
This enables maximum temperature control, with each room controlled individually, it means running costs are kept low, as only the rooms requiring air conditioning are switched on.
Split systems consists of two parts;
- indoor wall mounted unit
- outdoor condensing unit
Split System Air Conditioners are available in “reverse cycle” & “cooling only”.
Ducted Air Conditioner.
Ducted Air Conditioning systems enable total climate control of your entire home & can be installed into a new build or an existing house.
Ducted air conditioning is visibly less obvious than the traditional split system, as you will only see a ceiling or floor grill in chosen areas of each room.
The indoor system can be located in the upper roof space of a house & can also be located underneath the house, enabling you to have floor grills.
The condensing unit is located on the outside of the house.
Ducted systems have the option to be zoned via smart control, maximising energy savings by only having the rooms that need to be conditioned, on.
These zones can be customised to suit your home, reaching your desired temperature faster giving you the perfect indoor climate.
Go beyond your dreams.
Now is the time to discover the joy of air conditioning your home or office.
We want to hear from you
What size air conditioner do I need?
Small (up to 20m2)
Bedroom, study, small kitchen
2.5–3.5kW
Medium (20–40m2)
Bedroom with ensuite, small lounge
4.5–6kW
Large (40–60m2)
Large bedroom, mid-sized lounge, large kitchen
7.1–8kW
Extra large (60+m2)
Open-plan areas, large lounges
9–10kW
How can I reduce my air conditioning costs?
There are plenty of cost-effective ways to cool your home, as well as more permanent adjustments that create a more thermally comfortable home.
Here are some simple strategies to reduce costs of running your air conditioner:
- Only cool a smaller space.
- Close off the room you are cooling to trap the air.
- Set the thermostat between 22-24°C in summer.
- Draw the curtains against the hot summer sun.
- Use fans to help circulate the air.
How much does it cost to run an air conditioner?
Like other appliances around your home, the cost of running an air conditioner can depend on how you use it. Also, the brand and model of the system can impact on the running costs.
For example, the cost of cooling could depend on:
- The wattage and star rating of the air conditioner
- Fan speed
- Size of space being cooled
- Temperature setting
You can expect the running costs to range from $0.25 per hour for a small unit cooling a small space, up to more than $3.00 per hour for a reverse-cycle unit which is ducted to cool your entire house. If you run the system on most days over summer, the cost can quickly add up.
Also, the overall cost of running your air conditioner over the entire year will depend on various things, including:
- The temperature in your state (Summer in NSW is not as hot as in QLD)
- The Brand and Model of the air conditioner.
- Its energy rating.
- How many hours it runs for during the day and/or night.
- How effective is the insulation in your home.
Should I hire a Professional to clean my Air Conditioner?
YES, when your air conditioner needs more than regular maintenance, such as when it does not reduce the indoor temperature to a comfortable level you should hire a professional service technician.
At Coastline Air all our technicians are trained to find and fix any problems in your air conditioning system.
Our technician will:
- Check for correct amount of refrigerant
- Test for refrigerant leaks using a leak detector
- Capture any refrigerant that must be evacuated from the system, instead of illegally releasing it to the atmosphere
- Check for and seal duct leakage in central systems
- Measure airflow through the evaporator coil
- Verify the correct electric control sequence and make sure that the heating system and cooling system cannot operate simultaneously
- Inspect electric terminals, clean and tighten connections, and apply a non-conductive coating if necessary
- Oil motors and check belts for tightness and wear
- Check the accuracy of the thermostat.
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