A full-service Perth team for climate & energy.
From residential comfort to commercial fit-outs, solar and EV — one accountable team, one warranty, one point of contact.
Residential Air Conditioning
Custom-designed comfort for every room — ducted, multi-split, and zoned solutions engineered for Perth homes.
Commercial AC
Offices, builds & developments across Perth.
Solar & Battery
Cut your power bills with tailored solar.
Service & Repair
Maintenance, repairs and tune-ups.
Brands you trust, fitted by the team you trust.
Simple, supervised, stress-free.
A defined four-step process from your first call through to long-term aftercare — with the same team accountable end-to-end.
Start your project
Free quote
We assess your needs and give a clear, fixed quote.
Custom design
A system sized to your home or building and budget.
Professional install
Licensed techs, onsite supervisor, spotless finish.
Support & warranty
Commissioning, handover, 5-yr warranty & service.
Installed once. Backed for years.
Every installation is backed by a 5-year workmanship warranty, licensed technicians, and a tidy-site guarantee — from design through to service.
What “complete” actually means.
Fully licensed, insured technicians on every job.
Vetted staff you can trust in your home.
Backed by our written installation warranty.
We leave your space cleaner than we found it.
Perth homeowners rate us 4.8 out of 5.
Ross Hall
Nick Gye
Aurelia Caruso
Seems all good but it was very quick, just hoping it was done properly. 😊
Norm Golding
Lorretta Jackson
Terrible organization, got quoted 1 prize and the cost on completion was double, no additional work or parts added. Techs were good but I booked for 1 day service and I received 2 different technician even though I booked for the same day service, and 1 week apart
Plan B
Fantastic service from booking to completion of job. System is as good as new.
carol little
Company was able to provide me with a prompt service when I required assistance I would recommend this company to assist with your Air conditioner issue/installations.
Mark Borrello
Excellent service and great professional staff
Daniela Calcan
Dean H
I had three split systems installed by Complete Air Systems. They were quick, efficient and clean. It was a hard job due to the low roof pitch on my home, but nothing was too much for the team. Happy with thier service and would recommend!
Sorcha Hills
Absolutely 10/10 customer service. I’ve been impressed from initial contact through to going above & beyond to make the final payment easy for me. Highly recommended!
Leanne O'Leary
Very knowledgeable and helpful. They were also reliable and communicated well so I always knew where my job was at.
Hover to pause · based on Google reviews
Let’s get your project started.
Tell us what you need and our friendly Perth team will be in touch within one business day.
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Reply within 2 business hours. No obligation.