Heat Treatments Ltd is a third generation owned family company, specializing in Heat Treatment of steels and alloys for New Zealand and the world, we pride ourselves on having a one stop shop operation with our large production and manufacturing machine shop all under one roof.

We are enthusiastic and committed to consistently and economically provide our customers with products and services in accordance with their specific requirements and to their complete satisfaction.

In delivery, the concepts of quality, service and expertise form the foundations of our operating philosophy and guiding principles.

Our Purpose and Values

We are committed to conducting our business in accordance with the highest ethical standards and fully complying with applicable laws, rules and regulations.

We will fulfil our obligations to our stakeholders, including our staff, by continued investment in technology and education to provide the best service and support our long-term sustainability.

We will fulfil our responsibilities to our local and the global communities by recognising that environmental protection is a corporate responsibility and that we must continually strive to reduce our operational impact in this regard.

Our longevity and success can only be sustained through the upholding of these principles by all of our stakeholders when conducting their duties.

Heat Treatments Racing

We pride ourselves on our workmanship and getting results, we design and fabricate most of the parts on our cars, custom one off items as these can't be found on a shelf. Running these cars keeps our team very busy, its a constant learning curve and adrenalin rush when everything comes together in those seven passes, which is what you aim for. To run in the sevens takes a lot of work, R & D and team effort.

There has been plenty of action for our team with our tube chassis Pontiac GTO and our world record holding Skyline GTR, the GTR has been based in Australia for a year now with the aim of lowering our own world record.

With the support from our major sponsor, Castrol Edge, in partnership with our company and with the help of other New Zealand automotive suppliers and fans we will keep chasing the lower ETs and pushing the limits. The Nissan 350Z will be out this season coming.

History of the McGregor Group

Our founder, William D McGregor, began this engineering business in Mount Roskill Auckland, in 1946. In time, his business progressed to the successful development, design and manufacture of industrial ovens, furnaces and kilns. In conjunction with this, and as the demand for the heat treating of metals grew, the focus moved to obtaining the best technology to provide heat-treating services directly to the local market. This led to the eventual establishment of Heat Treatments Limited in 1966.

At about this time, Mr McGregor's two sons John and Keith entered the business with their energy and ideas that continued to grow the service including the addition of machining operations, a fully equipped metallurgical laboratory and other complimentary services. These additions enhanced the Company's general engineering capability and with furnace design and manufacture continuing until as recently as the early part of this century, developed the company into a significant contributor to the local industry.

Founded on longevity and experience, the Company has more recently focussed on offering the market the best heat-treating service possible and a "one-stop-shop" sourcing solution for specialised engineered parts. This approach has allowed us to grow the Company beyond the local market and successfully export our expertise and services

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116 - 118 Stoddard Road
Mt Roskill
Auckland 1041
New Zealand
PO Box 57025
Mt Roskill
Auckland 1140
New Zealand