Builder: Cachet
Client: Colgate-Palmolive
Location: Levels 28 & 29, Sydney, NSW
Type of Service: PAC units, Diffusers, Ventilation, BMS Upgrade, Mechanical Switchboard
Completion Date: 2022
Project Value: $100,000
PSB Air was engaged by Cachet to deliver a mechanical services refurbishment for Colgate-Palmolive’s Sydney head office across Levels 28 and 29. The project focused on upgrading the existing HVAC infrastructure to improve airflow, indoor air quality, and system efficiency while supporting a reconfigured office layout.
All works were required to be completed within a live office environment, with minimal disruption to staff and day-to-day operations.
Working within an occupied commercial office presented several challenges, including:
Maintaining comfort, safety, and continuity for building occupants was critical throughout the project.
PSB Air delivered a coordinated refurbishment approach focused on efficiency and minimal disruption:
The completed refurbishment delivered:
The result was a modernised HVAC system supporting a healthier and more efficient workplace environment.



This project highlights PSB Air’s experience delivering HVAC refurbishments in live commercial environments. It demonstrates the importance of careful coordination, system optimisation, and compliance when upgrading mechanical services in high-rise office settings.
Planning an office HVAC refurbishment or upgrade? PSB Air works closely with builders and commercial clients to deliver efficient, compliant mechanical solutions in live environments. Explore more of our projects or get in touch to discuss your requirements.
The project involved PAC units, diffusers, mechanical ventilation systems, and a BMS upgrade across two office levels.
Yes. All works were carried out in a live environment, with staging and coordination to minimise disruption to staff.
The upgraded BMS allows better monitoring, control, and energy management, helping optimise system performance and efficiency.
The new switchboard ensured the electrical infrastructure could safely support the updated HVAC equipment and operating loads.
Yes. Similar HVAC refurbishments are well suited to offices undergoing layout changes or seeking improved comfort, efficiency, and air quality without full system replacement.