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Design and installation of commercial HVAC controls, zoning and Building Management System (BMS) integration for new builds, refurbishments and upgrades.

We install and upgrade commercial control and zoning systems tailored to building use, asset complexity and performance goals.
Independent temperature control for rooms, floors or tenancies aligned to real occupancy patterns.
Integration of HVAC plant into new or existing Building Management Systems for central monitoring, scheduling and fault alerts.
Automated run-times and setpoints to reduce energy use and unnecessary plant operation.
Sensor-based monitoring supporting indoor air quality, compliance visibility and performance tracking.
Re-engineering legacy controls and zoning to resolve comfort issues and improve system efficiency.





We design and install commercial HVAC control systems across offices, education, healthcare and occupied commercial buildings throughout SEQ. From individual zone control to full BMS integration, works are delivered safely, compliantly and with minimal operational disruption.


Mechanical services built for operational reliability and long-term performance.






Trusted by tradespeople across South East Queensland for a reliable, professional and rewarding place to work.
“We had a fantastic experience working with Mark and the team at Chill Merchants.
They installed a large air con system in our workshop and office where several high temp machines run all day. These ducted units are big and heavy, and I wanted experienced tradesmen doing the job, and that's what we got.”

“I am writing to highly recommend Chill Merchants for any mechanical air conditioning services. As a satisfied client, we’ve had the pleasure of collaborating with Chill Merchants on several projects, and I can attest to their exceptional professionalism, expertise, and dedication to delivering top-notch results.
In all my interactions with Chill Merchants, they have consistently demonstrated a profound understanding of mechanical air conditioning systems and an unwavering commitment to providing tailored solutions that meet the unique needs of their clients. Their team of skilled technicians exhibits a remarkable level of proficiency, ensuring that every project is executed with precision and efficiency.
Their professionalism, expertise, and commitment to client satisfaction make them an invaluable partner to any project.”

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“Chill Merchants have completed a number of projects for us over the last 18 Months spanning minors works and duct work reconfiguration through to complete turn key commercial HVAC system installations.
Their communication, professionalism and trade knowledge is excellent. The transparency through the initial design and consultation process has helped to develop some great solutions to some very challenging problems. The installation team are extremely flexible, very thorough and produce high quality work. They turn up when they say they will and deal with onsite installation issues very quickly and with a minimum of fuss.
I would highly recommend Mark and the Chill Merchants Team to anyone.”

The Chill Merchants team completed all contracted works competently, efficiently, and in full accordance with project drawings and specifications.
Communication was clear, site coordination was smooth, and their commitment to meeting program deadlines was evident throughout the build. Chill Merchants' professionalism and reliability contributed to a seamless delivery, and Bryant will actively seek their services for future projects.
Real commercial HVAC and refrigeration projects delivered across South East Queensland.

Common questions about working with Chill Merchants across Brisbane and South East Queensland.
In commercial buildings, comfort problems are often control problems — not equipment problems.
Different sides of a building receive different solar loads. Meeting rooms fill up and empty throughout the day. Occupancy density changes. Without proper zoning and control logic, one area can be freezing while another is overheating.
Independent temperature control allows systems to respond to actual usage rather than running uniformly across the entire building. This improves comfort, reduces energy waste, and extends equipment life.
Controls are what turn mechanical equipment into a properly functioning building system.
We work across a range of commercial control platforms including VRF systems, VAV systems, standalone zoning platforms such as AirTouch 5, and larger building-wide systems integrated into BMS platforms.
The right solution depends on the building type, occupancy patterns, and budget. In schools and office environments, independent room control is often critical. AirTouch 5 systems, while commonly used in residential applications, can be highly effective in smaller commercial environments when engineered correctly.
In larger commercial buildings, VAV systems and BMS integration provide greater flexibility, monitoring, and centralised control.
The objective is not just to add controls, it is to design a system that is intuitive, stable, and aligned with how the building is actually used.
Yes, when engineered correctly.
Poor control logic can cause systems to run longer than necessary, overcool spaces, or fight against outside air loads. Upgrading controls can reduce unnecessary runtime, improve temperature stability, and optimise how systems respond to occupancy and external conditions.
However, controls must be balanced with ventilation and system capacity. Simply adding more sensors or zoning does not guarantee efficiency, the strategy must be engineered holistically.
Correctly configured control systems can improve both comfort and long-term operating costs.
In larger commercial buildings, HVAC systems are often connected to a central Building Management System.
Integration allows facilities managers to monitor temperatures, alarms, runtimes, and system performance from a central interface. It enables scheduling, fault detection, and better asset oversight across multiple systems.
When integrating new plant into existing BMS infrastructure, careful coordination is required to ensure compatibility, stable communication, and correct control sequencing.
We treat BMS integration as an engineering task, not a plug-and-play exercise.
Recurring comfort complaints, inconsistent temperatures, or unexplained energy usage often indicate control logic issues rather than mechanical failure.
During upgrades or major service works, we assess whether the existing control strategy still suits the building’s usage. In many cases, modest control reconfiguration, improved zoning, or platform upgrades can resolve issues without full plant replacement.
Controls should evolve with the building. Re-engineering control logic is often one of the most cost-effective ways to improve system performance.
If you have any questions about our services, please don’t hesitate to reach out.
We’re always happy to help!
