Gray Bros Air Conditioning

18/06/2026

What a view!

Another office fitout and refurbishment, delivered in Brisbane's CBD.

Our team was involved in the mechanical services scope for the AON office refurbishment. This required careful coordination between mechanical, electrical, hydraulic, fire and architectural trades - all while working within the constraints of an existing commercial building.

Our fitout and refurbishment capabilities include:

- Mechanical services design and construct
- Air conditioning upgrades and replacements
- Tenancy fitouts and refurbishments
- Ventilation and exhaust systems
- BMS and controls integration
- Testing, commissioning and balancing
- Service modifications for changing tenancy requirements

To find out more about our fitout and refurbishment capabilities, visit www.graybros.com.au.

16/06/2026

At Burleigh Heads State School, the tuckshop and amenities upgrade was designed to deliver a practical outcome for staff and students long after construction was complete.

Comfortable temperatures.
Effective ventilation.
Reliable exhaust systems.
Quiet operation and noise control.
Spaces that simply work as intended every day.

We’re pleased to have delivered our part of the Burleigh Heads State School tuckshop and amenities upgrade.

To find out more about our mechanical services, visit www.graybros.com.au.

11/06/2026

09/06/2026

Often, an overlooked part of maintenance is preserving design intent.

Most HVAC systems are commissioned to operate within very specific airflow, pressure and temperature parameters. And over time, tenant fitouts, operational changes, control adjustments, and equipment wear can gradually move systems away from those original settings.

The result is often higher energy use, reduced performance and unnecessary strain on equipment.

So when we're on-site across SE Queensland, our goal isn't simply equipment reliability. It's maintaining system performance, efficiency and operational outcomes over the life of the asset.

To find out more about how we do this, visit www.graybros.com.au.

04/06/2026

For Building Owners and Facility Managers who care about operational costs, VSDs like these can make a significant difference.

On a rooftop in Brisbane, this particular VSD controls the speed of a motor within an HVAC system, allowing it to respond to real-time demand rather than operating at full capacity all day.

As part of our regular service and maintenance programs, we inspect and test these systems to ensure they're operating as intended.

Benefits can include:

✔️ Reduced energy consumption
✔️ Improved system efficiency
✔️ Better control and performance
✔️ Less wear on mechanical equipment
✔️ Lower long-term operating costs

It's one of those components that often goes unnoticed but can make a significant difference to how a building performs.

Are your HVAC motors running at 100% when they don't need to? Talk to us at www.graybros.com.au.

02/06/2026

28/05/2026

Long-term relationships with clients are something we never take for granted.

We appreciated receiving this feedback from a client we’ve worked with for many years. Thank you, Gary, for the kind words and continued trust in Gray Bros.

To find out more about what we do, visit www.graybros.com.au.

26/05/2026

Tuesday afternoon BTS.

The team have been onsite at a Queensland university carrying out controls and electrical works as part of ongoing service and maintenance activities.

A lot of the work behind building performance happens inside control panels like these - monitoring systems, managing plant operation, and helping facilities run efficiently day to day.

Works like this typically include:

✔️ BMS and controls integration
✔️ Fault finding and diagnostics
✔️ Electrical testing and commissioning
✔️ Monitoring plant performance and operation
✔️ Preventative maintenance and servicing
✔️ System adjustments and optimisation

It’s detailed and plays an important role in keeping large facilities operating reliably.

To find out more about our capabilities, visit www.graybros.com.au.

14/05/2026

The light at the end of the plantroom tunnel 💡

From air handling and ventilation through to controls and system efficiency, these spaces are designed to keep facilities comfortable, compliant, and performing reliably over the long term.

Good plantroom design is about:

✔️ Safe and practical service access
✔️ Efficient equipment layout and coordination
✔️ Long-term maintainability
✔️ Reliable system performance
✔️ Future flexibility for upgrades and expansion

It’s the kind of detail that makes a big difference once a building is fully operational.

To find out more about how we deliver these outcomes, visit www.graybros.com.au.

12/05/2026

A shot from inside one of the air handling units at a Brisbane hospital, where we perform routine service and maintenance.

The UV lighting in the unit assists in reducing microbial growth on coils and internal components, helping systems operate more efficiently while supporting hygiene-sensitive environments.

Applications like this are commonly used in facilities where air quality and system cleanliness are especially important, including healthcare, laboratories, educational facilities, and commercial buildings.

Works like this typically involve:

- UV-C treatment within air handling systems
- Coil and internal component protection
- Improved long-term system hygiene
- Support for indoor air quality outcomes
- Integration within existing HVAC infrastructure
- Ongoing service and maintenance to maintain performance

A lot of these solutions sit behind access panels and ceilings unnoticed, but they play an important role in how buildings perform day to day.

To find out more about our capabilities, visit www.graybros.com.au.