Business Details

With over 33 years serving the African HVAC industry, MAS Group is one of Africa’s HVAC one stop shop, initially started out as an installation and maintenance of air conditioning systems.

It was then conceived through the broad expertise of management who have had many years in the industry - therefore giving shape to the 4 different brands within it, namely HiRef (SA), HiAir, HiControl and HiMetal. With just over 50 human capacity, MAS Group has dedicated to the best – thus ongoing training and development of teams.

HiRef (SA)

We develop, design and manufacture IT air conditioning systems.
We build complete «service-based» solutions to meet every customer’s needs.


Hi Air is a range of air conditioning equipment that pursues to protect the environment, provide physical comfort and adopts energy saving into the whole process of manufacturing and service.


HiControl stands firm in delivering exceptional quality work and complete customer satisfaction in the electrical HVAC field.


HiMetal generally does sheet metal fabrication which involves the process of manipulating sheet metal using different methods. Laser cutting and turret punching, followed by forming and bending. At HiMetal we can draw, form, create and assemble different sizes of sheet metal fabrications no limits.

Areas we have serviced

South Africa, Nigeria, Botswana, Rwanda, Namibia, Uganda, Angola, Guinea, Swaziland, DRC and Mozambique


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