Specialised building services, by experts, trusted locally

Featured project
Featured project
EducationCanberra, Australia

“Prefabrication the key to installing primary plant room in just one day ”

We specialise in solving the toughest HVAC challenges, led by a team we’ve carefully trained and supported to be the best in the industry.

ABOUT BENMAX
1986
Since1986

Staying true to who we are.

Building projects of every scale. Backing local talent.

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We started in 1986 with a clear vision: do the right thing, deliver quality, and treat people like family.

Why did we start? Simple—there was room in the market to do things better. Over the years, our vision has grown, but the heart of the company has stayed the same.

Local hands at work

Engineering at scale

Engineering at scale

Our services

All in-house

From design and construction to commissioning and maintenance, our full-service approach ensures every system is engineered to perform. That's The Benmax Way.

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Advisory & Design Services

Specialised HVAC Systems

Prefabrication & Modular Construction

HVAC Project Delivery (Major & Minor)

HVAC Maintenance & Repairs

Refrigeration
 Solutions

Fire Compliance Services

Water Treatment Services

Proven solutions.
Real results.

View our work

Australian War Memorial CEW Bean Building & Central Energy Plant

Government, HeritageCanberra, Australia
  • Purpose-built Central Energy Plant delivers Australia’s largest vertical closed loop GHX system
  • Geothermal system replaces traditional gas and electric with a 100% renewable energy source, ultimately saving on cost, space and emissions
  • Provides chilled and heating water to the entire AWM site encompassing five separate buildings and 145,000m² of floor area

Australian War Memorial New Southern Entry & Main Building

Government, HeritageCanberra, Australia
  • Heritage-listed and culturally significant site
  • $550m major redevelopment and expansion
  • Main Works Package 1 and Main Works Package 4

Aunty Agnes Shea High School

Education, GovernmentCanberra, Australia
  • Electric HVAC systems
  • Environmental initiatives including 250kW solar photovoltaic and associated battery system

Building the future, faster.

Talk to our team

Our specialist in-house team of engineers and tradespeople deliver prefabricated and modular construction services, from design to deployment.

Built on trust.
Chosen for performance.

  • "9/10. They delivered and completed scope and responsibilities without question."

    "Benmax is a great technical business that has delivered some of Canberra's most challenging HVAC projects. On jobs that are hard, technical or mission critical there is nobody in our market that I trust more. If there are challenges in delivery, Benmax are up front and truthful about them and this allows mature project teams to work together and deliver great outcomes."

    "10/10. Very easy to deal with, professional and quality workmanship."

    "10/10. Exceptional quality of work, project teams are very sound, management is always available and accessible."

    "10/10. Benmax has been a pleasure to work with throughout the project. Their team are professional, responsive, and highly committed to delivering quality outcomes. Communication has been clear and proactive, and they have consistently shown flexibility and a solutions focused approach when challenges arose. A reliable partner that brings strong technical capability and a great team attitude."

    "9/10. The service team support is outstanding."

    "10/10. Benmax provides reliable and informed information on project work. Benmax technicians present with a can-do attitude and conduct all activities with the highest degree of professionalism."

ANSTO

Geoff Dyer (September 2026)

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Local commitment.
Industry leadership.

From training the next generation to supporting our local community, we invest in our people and their places.

our community

"Benmax is a wonderful example of a local business choosing to invest back into the community that helped it grow.

They've taken the time to understand what we do, seen the impact they can make, and chosen to deepen their support. That says a lot about the kind of business they are.”

Hannah Andrevski, Founder & CEO

Roundabout Canberra

Start a project with us today.

Have questions about our services, looking for project estimates, or need technical advice? Our dedicated team is here to assist you.

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