Commercial mechanical contractors · Perth + Sydney
Mechanical services that keep buildings performing.
Commercial air conditioning, refrigeration, ventilation and maintenance — delivered by a licensed, trade-led team with practical engineering behind every job.
Trading hours
Perth: Mon–Fri 7:30am–4:30pm AWST
Sydney: Mon–Fri 7:30am–4:30pm AEST/AEDT
Weekends by appointment
Offices
9/32 Hines Road, O’Connor WA 6163
8/84 Old Pittwater Road, Brookvale NSW 2100
Contact
08 6237 8252 · Perth
02 7229 3552 · Sydney
admin@treadieshvac.com.au
Family-owned
Owner-operated since 2020, with more than a decade on the tools across Perth and Sydney.
ARCtick AU52285
Licensed refrigerant handling, fully insured and inducted for commercial sites.
Mitsubishi Electric Diamond Dealer
Supply, install and commission packaged, City Multi VRF and water-cooled systems.
One accountable contractor
Review, install, commission, hand over and maintain — no juggling trades.
What we do
Complete mechanical services from one accountable team.
From commercial fit-outs to refrigeration and ongoing maintenance, we install, commission and service systems that suit the building and the people who run it.
01
Commercial air conditioning
VRF/VRV, packaged and central plant, ductwork, ventilation and controls for new builds, fit-outs and upgrades.
02
Service & maintenance
Preventative maintenance, diagnostics, repairs and asset reporting for HVAC and refrigeration plant.
03
Commercial refrigeration
Coolrooms, freezer rooms and commercial refrigeration installed, upgraded and serviced.
04
Commercial ventilation
Outdoor air, exhaust, kitchen extraction and HRV/ERV coordinated with the whole building.
05
Marine HVAC & refrigeration
Vessel air conditioning and refrigeration retrofits and servicing, planned around access.
06
Residential & Passive House
Split, ducted, HRV/ERV and dehumidification for homes and high-performance builds.
Built for real buildings
Installed to be commissioned, accessed and maintained.
Every site has constraints — occupied floors, tight plant space, programme pressure, compliance and budget. We plan how systems will be installed, commissioned, maintained and eventually replaced, not just how they look on the drawing.
- Buildability and access reviewed before we price
- Coordinated with builders, consultants and other trades
- Commissioning and handover to the project specification
- Maintenance planned from day one
How can we help?
Find the right team for your site.
Tell us who you are and what the building needs — we’ll route it to the right people in Perth or Sydney.
Builders & head contractors
Tender pricing, coordinated mechanical packages, installation, commissioning and handover.
Property & facility managers
Maintenance agreements, fault response, defect reporting and replacement planning.
Hospitality & cold chain
Coolrooms, freezer rooms, display refrigeration and kitchen exhaust that keep trading.
Our process
Clear planning. Accountable delivery.
01
Review
Scope, drawings, specifications, programme and buildability reviewed early — gaps and exclusions stated before we price.
02
Plan
Equipment, procurement, access, sequencing and trade interfaces agreed before mobilisation.
03
Deliver
Installation, quality checks and progress reporting against the agreed scope and programme.
04
Support
Commissioning, handover, then planned maintenance for the life of the asset.
Part of the Treadies group
Need mechanical design or engineering first?
Air Theory, our associated consulting brand, provides mechanical design, tender review, Passive House and energy analysis. Treadies HVAC & R delivers the installation and ongoing service.
Have a project or building that needs attention?
Send us the site, scope and timing. Tenders, projects, maintenance agreements and service requests go straight to the right team in Perth or Sydney.