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Perth's split system installation specialists

Split system air conditioning
installation across Perth.

We supply and install split system air conditioners across Perth — from a single bedroom unit to a multi-head system — sized right for your space, installed clean, and backed by our workmanship warranty. Daikin, Panasonic, Mitsubishi & Midea, from $1,500 supply and installed.

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SUPPLY & INSTALL

Split system air conditioning, supplied and installed across Perth

A split system is the most cost-effective way to cool and heat the rooms you actually use. We supply and install split system air conditioners across Perth — from a single back-to-back bedroom unit to a multi-head system running several rooms off one outdoor unit. Every install is sized to your space, fitted clean with neat pipe covers, and backed by our workmanship warranty. We fit Daikin, Panasonic, Mitsubishi Electric and Midea, and can source other brands on request.

UNDERSTANDING SPLIT SYSTEM AIR CONDITIONING

What is split system air conditioning?

Split system air conditioning consists of an indoor unit and an outdoor unit, working together to efficiently cool or heat your home. The indoor unit distributes conditioned air throughout the space, while the outdoor unit expels heat from the refrigerant.

This design allows for quieter operation and flexible installation options, making it a popular choice for homes in Perth.

Daikin split system indoor head unit installed in a Perth home by Otter Air
Daikin split system outdoor unit installed under the eaves of a Perth home by Otter Air
EXPERT INSTALLATION AND MAINTENANCE SERVICES

Split system installation & annual servicing in Perth

Our expert team provides professional installation of split systems tailored to your home's needs, ensuring optimal performance from day one. We also offer annual servicing to keep your system running efficiently.

Regular maintenance involves thorough inspections, cleaning filters, and checking refrigerant levels, helping to prevent issues and extend the lifespan of your unit.

RELIABLE FAULT FINDING, REPAIR, AND REPLACEMENT

Split system repairs across Perth

Signs your split system air conditioner needs attention include inconsistent temperatures, unusual noises, or increased energy bills. Our skilled technicians can quickly diagnose and repair any faults, ensuring your system operates smoothly.

If repairs are no longer cost-effective, we can discuss replacement options that fit your needs and budget. Trust us for deep cleans and reliable replacement services to keep your home comfortable year-round.

Panasonic split system outdoor unit neatly installed on a Perth home by Otter Air
Split system outdoor unit with neat concealed pipework in Perth — one outdoor unit can run a multi-head system — Otter Air
MULTI-HEAD SYSTEMS

Multi-split: cool several rooms from one outdoor unit

Want to air condition multiple rooms but only have space for one outdoor unit? A multi-head (multi-split) system runs two to five indoor heads off a single compressor — so each room sets its own temperature and you avoid a row of outdoor boxes down the side of the house.

  • 2–5 indoor heads on one outdoor unit
  • Independent temperature control in every room
  • Ideal where outdoor space or wall room is tight
  • Often the tidiest option for double-storey homes

We'll tell you honestly whether a multi-head system or separate single splits is better value for your home at the free quote.

SPLIT VS DUCTED

Split system or ducted — which suits your home?

A split system is the most cost-effective way to cool or heat one or two rooms, and it's quick to install. If you want even comfort across the whole home, a ducted system may be the better fit.

Our team handles the full installation — mounting, cabling, and commissioning — then keeps it running with annual servicing and repairs. Not sure what size you need? We'll assess your space and recommend honestly.

New Panasonic and Midea split systems ready for installation across Perth — Otter Air
SPLIT SYSTEM INSTALLATION COST

How much does a split system cost to install in Perth?

Real Perth supply-and-installed price ranges for a standard back-to-back install (GST included). Your exact price comes down to the kW size for the room, the brand and energy rating, and the pipe and cable run. For the full breakdown, read our 2026 Perth split system cost guide, and if you're unsure on capacity, our guide to what size air conditioner you need.

Unit size Suits Supply + installed
2.5kW Small bedroom, study, nursery $1,820 – $2,400
3.5kW Standard bedroom, small living $2,020 – $2,900
5.0kW Master, open-plan living $2,550 – $3,600
7–8kW Large open-plan living/kitchen $2,960 – $4,500
Multi-head (2–5 rooms) Several rooms, one outdoor unit $4,500 – $11,000+

Prices are a guide for a standard back-to-back install on a value-to-mid brand. Long pipe runs, two-storey or difficult access, a premium brand, or a new electrical circuit can add to it — and because we're dual-licensed (air conditioning and electrical), any switchboard or circuit work is handled by the same team, on one quote. Every quote is free and upfront, and finance options are available for larger or multi-room jobs.

Try the cost calculator →

SIZING CALCULATOR · SHOP

Got your room dimensions?

Use our sizing calculator to get unit recommendations and see real install prices for your space — instantly, no obligation.

See sizes & prices

Warranties

Warranties for split systems typically include a 5-year manufacturer's warranty. At Otter Air, we also offer a workmanship guarantee on our installation services, ensuring your peace of mind.

Free quotes

We offer free quotes for split system installations, assessing your space to find the optimal location for maximum performance and efficiency. Trust us to provide the perfect solution for your cooling and heating needs.

Finance available

We offer flexible finance options to make your split system installation affordable, allowing you to pay in easy instalments while enjoying immediate comfort.

Brands we install and repair

The split system brands we fit across Perth

We supply and install Panasonic (our premium top pick), Daikin, Mitsubishi Electric and Midea, and service or repair all major brands. Pick a brand to see how it suits a Perth home:

Panasonic air conditioning Perth PanasonicTop pick Premium · our top pick → Daikin air conditioning Perth Daikin Premium → Mitsubishi Electric air conditioning Perth Mitsubishi Electric Premium → Midea air conditioning Perth Midea Value → Fujitsu air conditioning Perth Fujitsu Service & repair →
AREAS WE SERVE

Split system installation across Perth

We supply and install split systems right across the Perth metro. Jump to your suburb for local detail, or see all areas we serve.

Wattle GroveSalter PointHuntingdaleCanning ValeJandakotMount RichonWungongChampion LakesForrestfieldLangfordBeeliarThornlieBedfordaleSeville GrovePiara WatersGosnellsCanning MillsFerndaleKarrakupMardellaOrange GroveMelvilleMount NasuraLeemingHaynesKelmscottRivertonKardinyaHarrisdaleLynwoodKewdaleSouth LakeHilbertSpearwoodMount PleasantRivervaleAtwellArmadaleParkwoodMartinWilsonForrestdaleMaddingtonKenwickSouthern RiverBeckenhamWillettonByfordOakfordCanningtonCamillo

Frequently Asked Questions

Otter Air has developed a reputation amongst our clients as being honest, reliable, efficient and provide a professional service that delivers what we promise.

What is split system air conditioning?

A split system consists of an indoor unit mounted on a wall and an outdoor compressor unit. They work together to cool or heat a single room or open-plan area, offering quiet, efficient climate control.

How often should I service my split system?

We recommend annual servicing to maintain peak performance. Regular maintenance includes cleaning filters, checking refrigerant levels, and inspecting electrical connections to ensure efficiency and longevity.

What size split system do I need?

The right size depends on your room dimensions, insulation, window placement, and local climate. Our team provides a free assessment to recommend the ideal system capacity for your space.

How long does installation take?

A standard split system installation typically takes 3–5 hours. Our team ensures a clean, professional install with minimal disruption to your home.

Which brands do you install?

Panasonic is our top pick for most Perth homes — premium quality, in our experience on par with Daikin, at a sharper price thanks to our supplier relationship (plus nanoeX air purification and lacquer-coated outdoor PCBs). Daikin and Mitsubishi Electric are also premium; Midea is the value option. We can source other brands on request.

My split system isn't cooling properly – can you fix it?

Yes! Common issues include low refrigerant, dirty filters, or faulty compressors. Our technicians can diagnose and repair any fault quickly to restore comfort.

How much does it cost to install a split system in Perth?

A single-head split typically runs $1,500 to $4,500 supply and installed in Perth, depending on the kW size, the brand, and how easy the install is. A multi-head system covering several rooms ranges from about $4,500 to $11,000+. Every quote is free and upfront and fixed.

What is a multi-head (multi-split) system?

A multi-head split runs two to five indoor units from a single outdoor compressor, so you can air condition several rooms without a row of outdoor units. Each indoor head is controlled independently — ideal when different rooms want different temperatures.

Can you install a split system upstairs or on a second storey?

Yes. We regularly install split systems in second-storey rooms, planning the neatest route for the refrigerant lines and keeping the finish clean and tidy.

A real Perth job

3-head multi-split in a Success apartment

This customer had just bought an apartment in Success with a single split that only cooled the lounge. With very little balcony space and no ceiling access to conceal pipework, we removed the old unit and installed a 3-head Panasonic multi-split — heating and cooling the whole apartment from one outdoor unit — then fitted custom pipe covers along the balcony's wall-to-ceiling corner to keep it tidy.

Before Old single split system on a Success apartment balcony before replacement
After New 3-head Panasonic multi-split with concealed custom pipe covers on a Success apartment balcony
Rated 5.0 from 18 Google reviews

Perth homeowners have trusted us for 10+ years. Here's what they say.

Real five-star reviews from Perth homeowners — see why locals choose Otter Air for air conditioning and electrical work.

See all reviews

“Phenomenal service provided by Matt! The works was done on schedule and to a professional standard. The price was also very reasonable for the works done. I highly recommend for anyone looking to get aircon work done, and I wish Otter Air Conditioning the best for their future endeavours.”

Zaber Ahmed Zaber Ahmed 5.0 Review
Otter Air staff
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