When it hits 40 outside, you’ll be glad you chose quality
Wall-mounted Reverse-cycle split system air conditioners are a fantastic choice for efficiently cooling and heating individual rooms. But the quality of your split system air conditioner installation in Perth is everything. It’s the difference between a system that struggles through summer, inflating your electricity bill, and one that stays cool on a 40-degree day. The difference between costly replacements and simple maintenance. The difference between a company that fits and forgets… and WestOz, a team of experts who respect your property and ensure your air remains fresh for years to come.
Why choose us for split system air conditioner installation in Perth?
Professional but personable
We’re professionals, but we’re also friendly. We respect your property, make sure your pets don’t get out, clean up after ourselves and we pride ourselves on all being good humans.
Clear, honest communication
We respond quickly, honestly, and in plain English, avoiding industry jargon. With us, if you don’t need something, we’ll tell you, not sell you.
On time, every time
We understand the frustration of waiting for someone who doesn’t value your time. That’s why we’re committed to punctuality, ensuring we arrive exactly when scheduled — every time.
Tailored, optimised solutions
We’ll design an air conditioning solution that’ll fit your property like a glove, increasing efficiency and aesthetic appeal, and ultimately saving you money.
Only the best technology
We only install the very best air conditioning products. For reliability, you can’t look past high-end brands like Mitsubishi, Samsung, and Hisense.
Refrigeration mechanics, not electricians
We’re fully qualified air conditioning and refrigeration mechanics — not electricians or generalist tradies. Air conditioning is our specialty, our expertise, and our passion.
48-hour response time for issues
If you’re an AirCare member and have any issues with your air conditioning, we’ll be there within 48 hours to help, even in the peak of summer.
Who we serve
Residential
You deserve to live in comfort and get a good night’s rest. We’ll respect you and your home and install an air conditioning solution that lasts.
Commercial
We offer split system air conditioner installation in Perth for commercial premises like offices, hotels, hospitals, and restaurants.
Property managers
We partner with property managers, providing their clients with the best split system air conditioner installation in Perth.
New builds and developments
We work seamlessly with builders to design and install air conditioning systems that integrate perfectly with your new house or development.
Our latest projects
FAQs
Yes, we do! A multi split system allows you to connect multiple indoor units to a single outdoor unit, making it perfect for properties with different rooms or zones that need individual climate control. This setup is especially useful for homes or offices where space is limited, providing flexibility and efficiency while maintaining comfort in every room.
Technically, no, but most modern wall-mounted split systems in Australia are, providing both heating and cooling.
Yes, modern reverse-cycle systems are built to handle Perth’s face-melting hot days and chilly winter mornings, keeping your space comfortable year-round.
Definitely. A quality reverse-cycle system can replace electric heaters or gas systems while being more energy-efficient and eco-friendly.
The cost of a split system depends on factors like the size of your space, how many rooms you want cooled, and the brand you choose. We’ll help you select the right system that matches both your needs and budget.
For most split systems, installation can be done in a day (maybe 4 to 8 hours). The exact time depends on where you want it placed and whether any additional work is needed.
Split systems are great for single rooms or open-plan areas. We’ll help you choose the right size to suit your space perfectly.
With proper care, a good split system can keep you comfortable for 15 to 20 years. Regular servicing keeps it in tip-top shape.
Well, our clients seem to think it’s us, WestOz Trades! Our client Kaylee Furguson, for example, said this in her Google review: “Hands down the best air con company I have dealt with. You will not get better when it comes to quality, price, and reliability. They always go over and above and have no issues if they ever need to revisit.”
Wall-mounted split systems offer flexible installation options due to their compact size. Ideally, they’re installed on an external wall to make running pipes and electrical connections easier. If that’s not possible, they can be installed on internal walls, though this may require a condensate pump to move water from the indoor unit to the outside.
Yes! This setup, known as a multi-head system, is common in apartments or during construction, allowing multiple rooms to be cooled or heated from a single outdoor unit. While it’s easier to install in new builds, we can still make it work in existing properties, depending on the layout.
An inverter system adjusts the power supplied to the compressor, letting it run more smoothly and efficiently. It delivers consistent cooling and heating while using less electricity than conventional units. Just make sure the system is properly sized — an undersized inverter will work harder and cost more to run.
For the best balance between comfort and energy efficiency, aim for 22 to 24 degrees Celsius. Setting your system too high or too low forces it to work overtime, driving up your electricity bill and putting unnecessary strain on the unit.
A back-to-back installation is the most cost-effective setup for a split system. The indoor unit is mounted on an external wall with the outdoor unit directly behind it. This setup minimises the pipe run between the two units, which helps your system run more efficiently.
It’s normal for your system to drip water, especially in winter. When running on heating mode, the outdoor unit condenses moisture as part of its operation. On cooling mode, condensation forms in the indoor unit, which is drained outside. Regular servicing helps keep those drains clear and prevents blockages.
Unlike car air conditioning, residential and commercial systems are sealed and should never need re-gassing unless there’s a leak. If your system does need refrigerant, it’s usually a sign of a bigger issue that needs attention.
According to a 2020 study by Canstar Blue, a reverse-cycle system can cost anywhere from $0.25 to $0.95 per hour, depending on the size of the room and the system’s capacity. Medium-sized rooms (roughly 36 sqm) can cost between $0.36 and $0.70 per hour, while larger spaces (roughly 50 sqm) can cost up to $0.95. When it comes to heating, these systems are even more efficient. On average, it costs between $0.13 and $0.36 per hour to heat a room with a reverse-cycle air conditioner. The climate zone you’re in can also impact costs. In hotter regions like Perth, cooling costs may be slightly higher as the system works harder to balance external temperatures.
