Commercial HVAC & Mechanical Services

Engineered for performance, delivered with certainty

Air Theory designs mechanical systems that protect your design intent, meet the National Construction Code, the Building Code of Australia, and Australian Standards, and hand over exactly as specified. We get involved early, turn ambition into buildable services, and stay through commissioning—so what we draw is what we deliver, no grey zones.

Not at the start? We’ll join where you need us —discovery, design assurance, design and construct leadership, independent commissioning, or clean close-out.

We Work With 

Developer in a blazer shaking hands with a construction worker on site with cranes and buildings in the background, symbolising trust and collaboration. Represents Air Theory’s commercial mechanical systems for developers and asset owners—performance-led, approval-ready, on-budget.

Developers & asset owners

We design mechanical systems that are performance‑led, approval‑ready, predictable on budget, tight on program, and delivered exactly as specified.

Architect using compass and ruler to design a scaled model with trees and buildings, symbolising precision and creativity. Represents Air Theory’s work with architects and building designers to deliver mechanical systems that protect design intent, meet code, run quietly and keep IAQ clean.

Architects & building designers

We design mechanical systems that protect design intent, meet code, run quietly, keep indoor air quality (IAQ) clean, and arrive coordination-ready.

Two builders wearing safety vests and hard hats walk through a construction site with exposed wiring and framing, symbolising oversight and coordination. Represents Air Theory’s support for builders, head contractors and project managers with scope-tight, QA-driven mechanical packages.

Builders, head contractors & project managers

We deliver mechanical packages that are scope‑tight, decision‑ready, QA‑driven, variation‑resistant, and practical to install.

Two facility managers in hard hats and safety vests stand inside a large industrial warehouse, inspecting the space and discussing operations. Represents Air Theory’s support for facility managers and operators with efficient, maintainable, standards-documented mechanical systems.

Facility managers & operators

We engineer systems that are efficient, maintainable, standards‑documented, simple to control, and tuned for uptime.

Modern shopping centre with glass roof, natural light and indoor trees, filled with people shopping and dining. Represents Air Theory’s work with commercial tenants and fit-outs to integrate mechanical services that verify comfort, calm acoustics, clean IAQ, and connect cleanly to base-build.

Commercial tenants & fit‑outs

We integrate services that verify comfort, calm acoustics, keep IAQ clean, connect cleanly to base‑build, and hand over ready for operations.

What you get

 

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End‑to‑end capability—from strategy and design through delivery, governance and certification—so your project moves from concept to commissioning with confidence.
 
Get Started

Commercial mechanical services


  • Design and construct HVAC contractor
  • Air conditioning and ventilation solutions
  • Inverter ducted single and multi‑split A/C systems
  • Variable Air Volume (VAV) smart zone control systems
  • Air and water cooled variable refrigerant volume
  • Heat pump and heat recovery systems
  • BMS & central controls (incl. A/C interface)
  • Central plant – chilled/heating/condenser water systems
  • Mechanical ventilation systems to AS1668.1 and .2
  • Horizontal discharge toilet and kitchen exhaust systems
  • Preparation of BCA alternative solutions
  • BCA Section J compliance – energy efficiency
  • CAMEL heat load calculations
  • Fire damper rectification
  • Design, project and site management services
  • Design and installation certification
Air Theory Commercial Mechanical HVAC Services
Air Theory HVAC Mechanical Systems

Systems we specify and deliver


  •  Variable Refrigerant Flow / Variable Refrigerant Volume (VRF/VRV) — air- and water-cooled systems.
  •  Variable Air Volume (VAV) — smart zone control systems.
  •  Central plant — chilled water, heating water, and condenser-water systems.
  •  Air Conditioning (A/C) — inverter ducted single and multi-split systems.
  •  Heat pump & heat recovery systems.
  •  Mechanical ventilation & exhaust — including horizontal discharge toilet and kitchen exhaust systems.
  •  Building Management System (BMS) & central controls — including A/C interface and smart automation integration.

Commercial Mechanical Projects

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Bullsbrook Reconciliation clinic
Commercial air conditioning and refrigeration
facilities and management. 

Bullsbrook Reconciliation Clinic - Western Australia

Completed the installation of the mechanical services across the Bullsbrook facilities. Successfully completed working with Multiplex. 

Included Mitsubishi Electric AHU's, VRF systems, Air conditioning, ventilation systems.

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Rebel sports - Vicinity Centre - Lakeside Joondalup

Completed commercial mechanical installation and Project management of Rebel sports interactive centre.
Largest centre in Western Australia.

Rebel sports - Vicinity Centre - Lakeside Joondalup

Completed commercial mechanical installation and Project management of Rebel sports interactive centre.
Largest centre in Western Australia.

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Rottnest Express Facilities

Managing all the refrigeration and mechanical requirements for custom refrigeration and air conditioning across the entire Rottnest express fleet. 

Additionally working across the main facilities completing building upgrades across multiple locations. 

 

Rottnest Express Facilities

Managing all the refrigeration and mechanical requirements for custom refrigeration and air conditioning across the entire Rottnest express fleet. 

Additionally working across the main facilities completing building upgrades across multiple locations. 

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Peninsula Palms - Dampier WA 

Commissioned and carried out installation of all equipment across camp facility. Commissioning and engineering included- 

 

Peninsula Palms - Dampier WA 

Commissioned and carried out installation of all equipment across camp facility. Commissioning and engineering included- 

Base camp Dehumidifier systems
Chiller sets
Water pumps
AHU's 
Control strategies 
BMS optimisation and hand over

 

Book a scoping call

30 minutes to map risks and priorities.