2

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, 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

 

2

 

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 Process

Support at Any Stage of the Journey

 

Not every project starts with a blank page.

That’s why our process is designed so we can join you when you need us, no matter what stage you are at in your journey.

Whether you need discovery, design assurance, delivery leadership, or commissioning, we step in, close the gaps, and keep momentum moving.

Air Theory 6 Stage Process end to end (250 x 250 px) (1)

 

Connect:

Discovery & Advisory

 

We start by clarifying intent, risks and approvals. This is where scope is defined, budgets are protected, and compliance pathways are clear.


What you get:
    •    Rapid discovery and risk scan
    •    Heat load calculations (right-sizing early)
    •    Preparation of BCA alternative solutions (performance-based compliance pathways)
    •    Section J energy strategy and documentation

Join here when you need clarity on scope, compliance, or budget drivers before design is locked.

 

Air Theory consultant presenting heating load calculations on a whiteboard during a project meeting. Represents the Connect stage where intent, risks and approvals are clarified with rapid discovery, CAMEL load calculations, BCA alternative solutions, and Section J strategy.
Hands holding tablets and charts with bar and line graphs, symbolising analysis and comparison of system options. Represents Air Theory’s Concept stage where mechanical strategies are explored — VRF/VRV, VAV, central plant, A/C, and heat pumps — with costs and trade-offs clarified.

Air Theory 6 Stage Process end to end (250 x 250 px) (2)

 

Concept: 

Options & Strategy

 

Here we turn ambition into options. We model different system types, balance performance with cost, and show what each choice means for comfort, space, and energy.


What you get:
    •    System strategies compared:
    •    Variable Refrigerant Flow / Volume (VRF/VRV) — air- and water-cooled systems
    •    Variable Air Volume (VAV) — smart zone control
    •    Central plant — chilled, heating and condenser-water systems
    •    Air Conditioning (A/C) — inverter ducted single and multi-split systems
    •    Heat pumps & heat recovery systems
    •    Concept packs with budget ranges, zoning strategies, and plant layouts

Join here when you want options explored, trade-offs made explicit, and a clear strategy agreed.

 

Air Theory 6 Stage Process end to end (250 x 250 px) (3)

 

Consult: 

Design & Documentation

 

This is where decisions become buildable. We coordinate drawings, detail equipment, and check everything against code and standards so there are no grey zones later.


What you get:
    •    Coordination-ready drawings, schedules and specifications
    •    Mechanical ventilation to AS1668.1 & AS1668.2 (smoke control + indoor air quality)
    •    Exhaust systems (toilet, kitchen, amenities)
    •    Controls narratives, sequences of operation, and point schedules for BMS integration
    •    Design and installation certification

Join here when you need buildable documents that protect design intent and de-risk construction.

 

Close-up of hands reviewing building plans with pencil and scale ruler, symbolising design options and decision-making. Represents Air Theory’s Concept stage where system strategies are compared, from VRF/VRV and VAV to central plant, A/C, heat pumps and recovery systems.
Air Theory Commercial Mechanical HVAC Services

Air Theory 6 Stage Process end to end (250 x 250 px) (6)

 

Contract:  

Delivery with AT-Certified Teams

 

Once the project moves to site, we either lead as your Design & Construct contractor or sit client-side as a trusted advisor. Either way, you get governance, quality gates and calm delivery.


What you get:
    •    D&C HVAC contractor leadership or client-side governance
    •    Procurement and installation oversight of:
    •    Central plant systems
    •    VRF/VRV and VAV systems
    •    Heat pumps and recovery systems
    •    Inverter ducted and multi-split A/C
    •    Mechanical ventilation & exhaust systems
    •    BMS & central controls
    •    Project and site management, shop drawing reviews, QA, and no-surprises variation protocols

Join here when you want delivery stabilised, scopes protected, and systems installed as documented.

 

Air Theory 6 Stage Process end to end (250 x 250 px) (7)

 

Commission: 
Test, Balance, Verify & Sign‑Off

 

Systems don’t just get switched on — they get verified. We manage testing, balancing, and tuning so what’s promised on paper is proven in practice.


What you get:
    •    Commissioning plans and witnessed testing
    •    TAB (test & balance) and tuning
    •    BMS graphics, trend logs and integration
    •    On-site training for operators

Join here when you need independent commissioning and performance verified before handover.

 

Air Theory HVAC Mechanical Systems
Magnifying glass over a check mark symbol with documents and ticks, representing compliance and quality assurance. Reflects Air Theory’s Completion & Aftercare stage, where digital handover, certification, seasonal tuning, fire damper rectification, and upgrades are delivered.

Air Theory Stage 6 - Completion.

 

Completion & Aftercare:  

Digital Handover & Aftercare

 

Close-out is more than a handover — it’s assurance that systems perform long-term. We leave you with digital records and optional ongoing support.

What you get:
    •    Digital as-builts, O&M manuals, warranties
    •    Seasonal tuning and post-occupancy support
    •    Fire damper rectification
    •    Ventilation or Section J upgrades for compliance
    •    Heat-pump conversions and retrofits for energy and carbon savings

Join here when you need compliance fixed, handover cleaned up, or retrofit upgrades delivered.

 

Commercial Mechanical Projects

Card Background Image

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.

Card Background Image

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.

Card Background Image

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. 

Card Background Image

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.