Founded in Ohio in 1938 as an HVAC manufacturer’s representative, 1HVAC now supplies residential and commercial systems while manufacturing sheet-metal air-distribution products. Its unusual combination of representation and in-house production gives contractors a single source for equipment, ductwork, fans, and related boiler components. The company serves the Dayton-area market and sells across Ohio, while also operating affiliated HVAC businesses in other regions.
Morrison, IncSince 1961, locally owned Morrison, Inc. has provided heating, cooling and indoor-air solutions to homes, businesses and industrial customers across the Mid-Ohio Valley. The Marietta company remains family-operated into its third generation, with more than 50 professionals and an in-house sheet-metal fabrication shop that produces custom work alongside its HVAC service. Its NATE-certified technicians provide 24/7 support and serve both Ohio and West Virginia.MARIETTA, OH
Arzel ZoningSince Al Zelczer founded it in 1983, Arzel Zoning has built its identity around practical HVAC zoning technology made at its Cleveland, Ohio factory. The company develops air-driven systems for contractors serving residential and light commercial customers, with retrofit work a particular focus when existing ductwork is difficult to reach. Its U.S.-made products carry a limited lifetime warranty.CLEVELAND, OH
H&E AIR IncWith more than three decades in commercial HVAC, H&E AIR Inc. is a Long Island company known for handling complex building projects throughout the New York City region. Its Medford facility keeps sheet-metal work in-house, where staff with a combined 70 years in the industry fabricate ductwork for commercial customers.RONKONKOMA, NY
Allied Supply CompanyFounded in Dayton by John Homan in 1935, Allied Supply Company is a family-owned wholesale distributor serving HVACR contractors and equipment-maintenance professionals across the Midwest. The company operates six Ohio locations and is known for pairing broad HVACR supply with specialized support, including locally manufacturing custom-cut air filters and maintaining a Mitsubishi Authorized Training Center in Columbus. Leadership remains with John Homan’s descendants, carrying the business into its fourth generation of family stewardship.DAYTON, OH