Split system air conditioning Perth homes and businesses rely on. Licensed installation, servicing and 24/7 repairs from qualified refrigeration mechanics.
Perth summers are hard on air conditioners. When a split system struggles on a 40°C afternoon, you need a technician who understands refrigeration, not a salesperson. Refrigwest installs, services and repairs split system air conditioning across Perth, with ARCtick licensed technicians and vans stocked for first-visit fixes.
We size every system for Perth’s heat, quote before we start and tell you straight whether a repair or a replacement makes more sense. No upselling. Just reliable split system air conditioning in Perth from a team that fixes cooling systems for a living.
A split system air conditioner has two parts. An indoor unit mounted on the wall moves air through the room, and an outdoor unit (the condenser and compressor) sits outside and moves heat in or out of your home. Refrigerant pipes and a cable connect the two through a small hole in the wall.
Because each indoor unit controls one room or zone, split system air conditioning in Perth is one of the most popular and efficient ways to cool and heat the spaces you actually use.
The most common choice for bedrooms, living areas, home offices and small shops. A wall-mounted split system suits one room, is the quickest system to install and is the most popular split system air conditioner in Perth homes.
One outdoor unit runs two or more indoor units. A multi-split system is ideal when you want to cool several rooms but only have space for one outdoor unit, such as in apartments and townhouses.
Almost every modern unit is a reverse cycle split system. It cools in summer and runs in reverse to heat in winter, which makes it one of the cheapest ways to heat a Perth home.
An inverter split system speeds its compressor up and down to hold the set temperature, instead of switching fully on and off. That means steadier temperatures, quieter running and lower power bills.
Every split system installation in Perth follows the same six steps.
A split system installation in Perth involves refrigerant and electrical work, so it must be done by licensed technicians. DIY or unlicensed installs can void the manufacturer’s warranty.
We look at the room, the wall, the outdoor unit location and your switchboard.
We calculate the right capacity for the room, its orientation and Perth’s heat.
You get a fixed price for installation and electrical work before we start.
Licensed technicians mount both units, run and pressure-test the pipework, and connect the power.
We evacuate the lines, check refrigerant charge and pressures, and test cooling and heating.
We walk you through the controls and register your warranty.
An undersized unit runs flat out and never cools the room. An oversized unit short cycles, wastes power and leaves the air clammy. Getting the size right is critical for split system air conditioning in Perth’s summer heat. Use this as a starting guide, then let us confirm on site.
| Room | Typical size | Suggested cooling capacity |
|---|---|---|
| Small bedroom or study | Up to 15 m² | 2.0 to 2.5 kW |
| Main bedroom | 15 to 25 m² | 2.5 to 3.5 kW |
| Lounge or open-plan area | 25 to 40 m² | 5.0 to 7.1 kW |
| Large open-plan living | 40 to 60 m² | 7.1 to 9.5 kW |
When we size split system air conditioning in Perth, we allow for rooms that face west, have large windows, high ceilings or poor insulation, or sit under a hot roof space. Those rooms often need one size larger than the table suggests.
Your split system installation cost in Perth depends on the unit you’ve chosen and how simple the install is. You buy the unit and we install it, so you only pay us for labour, materials and electrical work. A back-to-back install, where the indoor and outdoor units sit on opposite sides of the same wall, is the simplest and most affordable. The price rises with:
Longer pipe runs, or an outdoor unit on a roof or second storey
Switchboard upgrades or a new dedicated circuit
Brick, double-brick or concrete walls that are harder to core
Removal and disposal of an old unit, including refrigerant recovery
Every split system installation quote is fixed before any work starts.
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Perth’s dust, heat and long cooling season clog filters and coils fast. Regular split system servicing in Perth keeps your unit efficient, protects the warranty and catches small faults before a heatwave. A Refrigwest service includes:
Most homes need a split system service in Perth once a year, ideally before summer. Clean the filters yourself every 2 to 4 weeks when the unit is working hard. Busy shops, offices and rental properties may need servicing every 6 months.
Here’s what we see most often during split system repairs in Perth, and how urgent each one is.
Not every licence covers repairs. Under ARC rules, a restricted split system licence covers some installation work only. Every split system repair in Perth needs a full refrigeration and air conditioning licence, and every Refrigwest technician holds one.
| Symptom | Likely cause | How urgent |
|---|---|---|
| Running but not cooling | Refrigerant leak, dirty coils, failed capacitor or fan motor | Book soon, urgent in a heatwave |
| Water dripping from the indoor unit | Blocked drain line or tray, iced coil thawing | Book soon: water damage risk |
| Ice on the pipes or indoor coil | Low refrigerant, blocked filter, failing fan | Switch off and book |
| Outdoor unit not running | Failed capacitor, contactor, fan motor or power fault | Same day in summer |
| Error code flashing | Sensor, board or communication fault | Note the code and call us |
| Bad smell when it starts | Mould or bacteria on the indoor coil | Book a service clean |
| Loud rattling or buzzing | Loose panel, failing fan bearing or compressor strain | Book soon |
Breakdowns don’t wait for business hours. Call 1300 164 217 any time for 24/7 split system repairs in Perth.
Call 1300 164 217| Split system | Ducted reverse cycle | Evaporative | |
|---|---|---|---|
| Best for | Single rooms and zones | Whole home, hidden outlets | Whole home in dry heat |
| Heating | Yes (reverse cycle) | Yes (reverse cycle) | No |
| Running cost | Low per room | Higher, unless zoned | Lowest |
| Works with windows closed | Yes | Yes | No, needs airflow |
| Humid days | Works well | Works well | Less effective |
For most homes, a split system air conditioner in Perth is the most cost-effective way to cool and heat the rooms you use most. If you want whole-home cooling for dry heat, see our evaporative air conditioning service.
Here’s what every job looks like when you choose us for Split Air Conditioning in Perth.
Talk to a technician, not a call centre.
The person who answers knows refrigeration.
No upselling.
We assess, then recommend. If a repair is the right call, that’s what you get.
Clear quotes.
You know the cost before any work starts.
A report every time.
Every job ends with a written service report for your records.
Already bought a unit, or about to? We install split system air conditioners bought from any retailer or online store. Before you buy, check:
SizeMatch the cooling capacity to the room using the sizing guide above.
Energy ratingThe Zoned Energy Rating Label shows cooling and heating stars, yearly energy use and noise.
What’s in the boxTell us whether the pipe kit, brackets and remote are included, so we bring anything missing.
WarrantyKeep your receipt. Most manufacturers require a licensed installer for the warranty to apply.
Send us the model number and a photo of the wall and outdoor area for a fixed quote. Our split system servicing then keeps it running efficiently for years.
Refrigeration mechanics, not salespeople. Our team works on refrigeration systems every day, so split system repairs and diagnostics are core work.
Fully licensed. ARCtick authorisation AU46477 and Energy Safety WA licence EW181962 cover the refrigerant and electrical work on every split system installation.
First-visit fixes. Stocked vans carry common parts such as capacitors, fan motors and sensors.
No upselling, clear quotes. If a repair makes more sense than a new unit, that’s what we recommend, and you know the price before work starts.
Homes and businesses. We also handle residential air conditioning and commercial air conditioning across Perth.
Our technicians install, service and repair split system air conditioning Perth-wide, from Two Rocks to Mandurah and out to the Perth Hills.
Don’t see your area? Give us a call to check if we can!
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It depends on the unit size and how complex the install is. You supply the unit, so you only pay us for installation, materials and any electrical work. Send us the model number for a fixed split system installation quote.
As a guide, a bedroom needs 2.5 to 3.5 kW and an open-plan living area 5.0 to 7.1 kW, with west-facing rooms often needing a size up. We confirm the right size on site before any split system air conditioner in Perth is installed.
A standard back-to-back installation usually takes 3 to 4 hours. Longer pipe runs, multi-split systems or switchboard upgrades can take most of a day.
Yes. A reverse cycle split system heats as well as cools, and it is one of the most efficient ways to heat a room in a Perth winter.
Multiply the unit’s power input in kW by your electricity tariff to estimate the cost per hour. For example, a unit drawing 1 kW on a $0.30 per kWh tariff costs about 30 cents an hour. Inverter models and regular servicing keep that number down. If you only need cooling, evaporative cooling is usually cheaper to run than reverse cycle.
Book a split system service in Perth once a year for most homes, ideally before summer. Businesses should follow our servicing schedule for commercial air conditioning.
No. Every split system installation in Perth involves handling refrigerant and connecting to mains power, which requires a refrigerant handling licence under Australian law and an electrical licence. A DIY install can also void the manufacturer’s warranty.
Yes. We install units bought online or from any retailer, as long as the capacity suits the room. Send us the model number and we’ll confirm everything is right before your split system installation in Perth goes ahead.
