A1 Advantage Heating and Cooling Inc. has been focused on serving the families of Leelanau and Grand Traverse counties with standard goods and service since 2003. They look forward to an existing lengthy relationship taking care of all the heating & cooling demands.

Antrum continuous indoor air quality monitoring systems, which when integrated with the BMS, create healthier, more efficient buildings. AntrumX™ monitors the Indoor Air Quality (IAQ) of up to 32 spaces from a single location.

Applegate Heating & Air Conditioning specializes in heating, air conditioning, and sheet metal work. It serves residential, commercial, and industrial projects. It specializes in sheet metal design, fabrication, and installation for projects of all sizes, ranging from $100 to $25,000,000.

Behler-Young Company was founded in 1926 and is Michigan’s largest wholesale distributor of Heating, Cooling and Refrigeration products. Behler-Young provides solutions such as Heating, Air Conditioners, Ventilation, Refrigeration, Wholesale, NATE, and Sheet Metal.

Christian & Co. Inc. is a Liaison between The World's Premier Manufacturers and Select Distributors in Michigan and Toledo, OH.

DUCTZ has been providing industry-leading air duct cleaning and HVAC restoration services for residential and commercial properties alike.

Gallagher-Kaiser Corporation (GK) is a privately owned, Michigan based turn-key supplier of paint finishing systems, commercial & industrial HVAC and mechanical automotive systems within the Kaiser Enterprise.

General Filters is a manufacturer of residential whole-house humidifiers, air cleaners, UV air purifiers, dehumidifiers, heat and energy ventilators and fuel oil filters.

GfG Instrumentation is a pioneer for gas detection and measurement technology. They offer an assortment of portable monitors, fixed systems and respiratory airline monitors.

Grand Traverse Refrigeration, Inc., has been providing heating, cooling, and refrigeration services to customers in the Traverse City and the surrounding areas. They are the HVACR company. They service, repair, install, maintain and design all makes and models of heating and air conditioning systems.

Haisma Heating & Cooling Inc. is an HVAC company serving West Michigan. The company was established by Garry Haisma, a Northwest side Grand Rapids area native, in 1981.

Hart & Cooley has been a trusted brands for HVAC supplies in the industry. Their products are stocked across North America to provide the customer with a winning, comprehensive solution for business - on time. Their brands include AmeriFlow, AmeriVent, AMPCO, Hart & Cooley, Lima, Milcor, PortalsPlus, Roof Products & Systems (RPS) and Ward Industries.

As one of the HVAC servicing companies in West Michigan, Lamphear Service Company specializes in offering high-quality heating and cooling repair, installation and mechanical services to residential and commercial clients.

Midwest is a leading wholesale supplier of HVACR equipment and service parts. They mostly serve their Northern Michigan markets.

Rapid Water Technologies' patent-pending nanobubble generator removes and prevents the buildup of biofilm in commercial and industrial water use.

SANI-VAC Service provides high-quality indoor air cleaning services, including HVAC units, air ducts, and kitchen exhaust cleaning for commercial, industrial, and institutional organizations. It offer much heating and cooling cleaning services including air duct cleaning, ventilation cleaning, coil cleaning, HVAC cleaning, commercial kitchen exhaust degreasing, cooling tower cleaning, and ductwork inspections.

Universal Piping Industries (UPI) is a pioneer in the design, fabrication and installation of industrial piping & plumbing systems and HVAC systems for industrial/commercial facilities.