Licensed & Insured Commercial HVAC Specialists

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(08) 9303 3200

Reduced Bills

Peace of Mind

Increased Comfort

If your air conditioning is struggling every summer, it’s already costing you more than you think.

As systems age or operational demands increase, upgrades become essential to maintain performance, efficiency and compliance. Our system upgrade services are designed to modernise existing infrastructure while minimising disruption to your business.

We begin with a thorough assessment of your current setup, identifying limitations, risks and opportunities for improvement. From there, we develop and implement a structured upgrade plan that enhances reliability, optimises performance and ensures alignment with current standards and regulations.

What We Do

MCAS specialises in commercial system upgrades, enhancing existing infrastructure to meet current standards and operational demands.

As commercial buildings age, so do their air conditioning and HVAC systems. Rising energy costs, frequent faults, tenant complaints and inconsistent performance are often signs that a system is no longer suitable for the building or its current use.

For building owners, landlords, property managers and facilities teams, a HVAC system that’s inefficient or unreliable creates ongoing cost and risk, particularly in Perth’s extreme summer conditions.

We specialise in commercial HVAC system upgrades across Perth, helping clients modernise existing systems through targeted component upgrades, partial or full system redesigns, and complete decommissioning and recommissioning where required.

Buildings change over time. Occupancy increases, layouts are modified, operating hours extend and energy expectations rise. Many older systems were never designed for these demands.

Our upgrade approach focuses on:

  • Improving system efficiency and reducing operating costs.
  • Resolving comfort issues and uneven temperature zones.
  • Replacing ageing or obsolete components.
  • Ensuring systems meet current compliance and safety standards.
  • Aligning HVAC performance with how the building is actually used today.

Rather than applying a ‘one size fits all’ solution, we assess the existing system and design an upgrade path that delivers measurable improvements without unnecessary disruption.

Upgrading an active commercial building requires careful planning. Our role is to manage complexity while keeping disruption to occupants and operations to a minimum.

We manage the full upgrade process, including:

  • Detailed assessment of the existing HVAC system.
  • Upgrade design and system reconfiguration.
  • Decommissioning of redundant or failing equipment.
  • Installation of new components or systems.
  • Recommissioning and performance verification.


This structured approach reduces downtime, avoids unexpected costs, and ensures the upgraded system performs as intended.

Our System Upgrades work is delivered under the leadership of Simon Zulberti, bringing over two decades of commercial HVAC experience to complex retrofit and upgrade projects across Perth.

For you, this means:

  • Practical solutions based on real world performance.
  • Effective recommendations rather than unnecessary replacement.
  • Confidence that upgrades are designed and delivered correctly.
  • Clear accountability throughout the process.

A properly upgraded HVAC system should deliver tangible results.

Our clients typically see:

  • Lower energy consumption and running costs.
  • Improved comfort and fewer occupant complaints.
  • Increased system reliability during peak periods.
  • Extended system lifespan and reduced maintenance risk.


Upgrades are about restoring confidence in your building services, not just replacing equipment.

Once upgrades are complete, continuity matters. We offer ongoing commercial maintenance plans to ensure upgraded systems continue to perform as intended.

This provides:

  • Consistent servicing by technicians familiar with the system.
  • Faster response when issues arise.
  • Long term performance stability.
  • Reduced risk of unexpected failures during extreme weather

Book an Upgrade Consult With MCAS

Talk to us about upgrading your HVAC system and restoring reliable performance before the next Perth summer.

(08) 9303 3200

The MCAS Upgrade Process

Step 1

Initial Consultation

You contact us about comfort issues, high running costs, or an ageing system. We review your existing setup and understand what you want to improve.

Step 1
Step 2

System Assessment

We inspect the system on site and assess performance, capacity, and efficiency. You receive clear recommendations on the best upgrade options, from component replacements to full system upgrades, with upfront pricing.

Step 2
Step 3

Upgrade Planning

Once approved, we lock in the scope, order equipment, and schedule the work to minimise disruption to your building or operations.

Step 3
Step 4

System Installation

Our technicians complete the upgrade efficiently and safely, integrating new equipment with your existing system where appropriate.

Step 4
Step 5

Testing & Handover

We commission the upgraded system, verify performance, and hand it back fully operational, including any compliance documentation.

Step 5
Step 6

Preventative Maintenance Plan

We will provide you with an option for an ongoing preventative maintenance plan for your newly updated system. This is optional however we always recommend this as it ensures longer asset life, lower ongoing running costs and peace of mind.

Step 6

Discuss your system challenges and get practical upgrade options tailored to your building.

Upgrade Your System With MCAS

Discuss your system challenges and get practical upgrade options tailored to your building.

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