About GJ Walker

About Us

Exceptional service and quality solutions that are cost effective, efficient and save energy.


When GJ Walker was established in 1975, our ambition was to be a leading force in the HVAC industry. To date we have been involved in the construction of some of the largest industrial and commercial buildings in Australia, providing quality products for our clients.


The philosophy on which the company was founded and which is still true today, is to offer our clients exceptional service and quality and a product that is cost effective, efficient and energy saving.

Core business

An independent business, GJ Walker has been involved in the design and manufacture of specialist air handling systems to A.S.3666, I.S.0.9001 and Queensland Department of Health Regulations for a range of applications including:
 • pharmaceutical cleanrooms
 • television studios
 • art galleries
 • museums
 • hospitals and
 • numerous commercial buildings.

GJ Walker still maintains a small company philosophy of personal service and timely performance. We welcome the opportunity to work with you on any new design you may have.