Specializing in installation and maintenance of state of the art HVAC systems. Specializing in installation and maintenance of state of the art HVAC systems. Our world is changing, and technology is an integral part of the change. Northern Air believes that to ensure our customers success, we need to take advantage of these advances and apply them to the design and service of their HVAC/R systems. We strive to bring you the most efficient, reliable and environmentally-friendly solutions, with single-source responsibility.

Tech Mechanical, Inc. based in Pontiac, MI. serves the commercial and industrial HVAC/R industry with a complete array of services for HVAC, control, industrial ventilation and paint spray booth systems. Tech Mechanic al, Inc. is able to design a new system or upgrade your existing system to make your building comfortable while operating at maximum efficiency.