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

“Chill Merchants were engaged by Bryant Building Contractors to deliver the mechanical services package at Bryant’s recently completed, Energy Quuensland Esitrain Redevelopment project and performed strongly from pre-tender until completion.
Their 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 Merchant’s professionalism and reliability contributed to a seamless delivery, and Bryant will actively seek their services for future project.”


“As a commercial builder, we have engaged Chill Merchants to deliver mechanical services on several projects, ranging from straightforward HVAC installations to design-and-construct mechanical works. In each case, their team has been highly professional and easy to work with, integrating smoothly with our site operations and schedules.
Communication with Chill Merchants is excellent. They keep our project team well-informed and provide honest, practical advice at every stage. This candid guidance has helped us make informed decisions without any unwelcome surprises. We’ve found them reliable, proactive in solving issues, and committed to doing the job right the first time.
Based on our experience, we confidently recommend Chill Merchants for commercial mechanical services. Their straightforward, collaborative approach and integrity make them a valuable partner on any construction project. We would not hesitate to work with them again in the future.”

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.
Expert advice and compliance updates for commercial HVAC systems 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 AirTouch5, 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 controllogic can cause systems to run longer than necessary, overcool spaces, or fight against outside air loads. Upgrading controls canreduce 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!
