COMMERCIAL AIR CONDITIONING · BRISBANE & GOLD COAST
Commercial Air
Conditioning.
Air conditioning designed for performance — tailored to your building, usage requirements and energy goals, and delivered by our in-house team from design through to commissioning.
Design to Commissioning
VRV/VRF, AHUs & Chillers
Office to industrial facilities
✔ Servicing SE Queensland & Northern NSW
Family Owned Since 1996
OUR CLIENTS
Trusted across education, healthcare & construction
Universities, health services, builders and developers rely on us to keep critical HVAC and ventilation running.
From single zones to whole building central plants, we install the right system for how your building operates.
Our air conditioning capabilities
VRV/VRF systems
Efficient multi-zone systems for offices and multi-storey buildings.
Ducted & wall-mounted splits
Targeted comfort for smaller zones, comms rooms and offices.
Ducted fan coil units
Concealed comfort for fit-outs, office and teaching spaces.
Packaged & rooftop units
Self-contained plant for retail, warehouses and industrial sites.
Air handling units (AHUs)
Central air treatment for large and critical environments.
Chillers, boilers, cooling towers
Central plant for hospitals, universities and large complexes.
1996
Family owned - trading for 30+ years.
2
Offices: Brisbane & Gold Coast.
24/7
Support for maintenance clients.
S.E. QUEENSLAND . BRISBANE . GOLD COAST . NORTHEN NSW
Service and
Maintenance.
Planned preventative maintenance for commercial and industrial buildings — designed around your site, equipment, criticality and budget. Family owned since 1996.
✔ Scheduled visits planned for you
✔ Compliance reporting & asset records
✔ Priority breakdown response
✔ Brisbane & Gold Coast locations
Request a Maintenance Quote
Tell us about your site and equipment and we’ll tailor a plan to you.
OUR SERVICES
Maintenance that keeps every system performing.
Our service and maintenance programs cover your ventilation, air conditioning and breakdown support - reducing downtime, staying compliant and extending the life of your assets.
Design, installation and commissioning of ventilation systems engineered for how your building operates — built to Australian Standards.
✔ BMS integration
✔ Kitchen exhaust
✔ Car park exhaust & CO₂ monitoring
✔ Amenities exhaust, fans, motors & controls
Mechanical Ventilation
Planned preventative maintenance designed around your site, equipment, criticality and budget.
✔ Planned preventative maintenance
✔ Compliance, reporting & asset management
✔ Upgrades, retrofits & optimisation
✔ Ducted & split system servicing
Scheduled Service & Maintenance
Commercial and industrial systems tailored to your building, usage and energy goals - from design through to commissioning.
✔ VRV / VRF systems
✔ AHUs & ducted fan coil units
✔ Packaged & rooftop units
✔ Chillers, boilers & cooling towers
Air
Conditioning
Responsive breakdown service focused on fast fault-finding, safe repairs and minimal downtime.
✔ Emergency call-outs
✔ Mechanical repairs
✔ Electrical repairs
✔ Controls troubleshooting
✔ Fault diagnostics & reporting
Emergency Breakdowns
Delivered for demanding sites
RECENT PROJECTS
Wesley Hospital Kitchen
Healthcare: Kitchen exhaust & make-up air
Gold Coast University Hospital
Healthcare: Hybrid theatre
Crestmead Business Park
Commercial: Air Conditioning
One team, from design to handover
01
Design
We assess loads, zoning, controls and future expansion.
02
Installation
Our in-house team installs with minimal disruption to your site.
03
Commissioning
Every system is tested for quality and compliance.
04
Maintenance
Planned servicing and fast breakdown support.
WHY GRAY BROS
Family owned. Pragmatic. Accountable.
For over two decades we’ve built long-term client relationships through a proactive approach and practical project delivery - backed by a team we invest in and a community we support.
“Their team provided excellent services, were professional, reliable and finished the project on time. Their communication was clear from start to finish.”
-Jarred
We are proud sponsors of Beaudesert Campdrafting, the Fijian Rugby Team and the Coorparoo Kings AFC.
WHERE WE WORK
Gold Coast, Brisbane & Northern NSW
Two local offices servicing projects right across South East Queensland and Northern NSW.
Frequently asked questions
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Yes. We deliver mechanical services for new builds, refurbishments, fit-outs and system upgrades, working alongside consultants, builders and building owners.
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Gray Bros supports commercial and multi-residential buildings, including offices, retail properties, apartment buildings and other facilities with commercial HVAC and mechanical systems.
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Yes. We can help establish a scheduled maintenance program based on your building, equipment and operational requirements. The aim is to identify developing issues, maintain equipment performance and reduce reliance on reactive repairs.
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Yes. We can discuss your existing equipment, current maintenance arrangements and building requirements to determine the appropriate service approach. This can include scheduled servicing, fault diagnosis, condition reporting and recommendations for repairs or future works.
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Yes! Gray Bros provides breakdown support for commercial HVAC and mechanical systems. We can discuss your site's requirements and the appropriate service and response arrangements.
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This depends on the equipment and site requirements. Maintenance may include scheduled inspections, servicing, operational checks, fault identification, equipment condition observations and service reporting, with recommendations for repairs or further investigation where required.
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Gray Bros has a team on the Gold Coast, supporting commercial mechanical services and HVAC service and maintenance across the region. Contact our team to discuss your building's location and requirements.
Have a project coming up?
Talk to the Gray Bros team about design, installation or maintenance - we’ll come back to you with a clear quotation.
© 2026 Gray Bros Air Conditioning · Family owned since 1996
Brisbane: 07 3276 7674 · Gold Coast: 07 5648 3736