About Us

O'Connor Company was founded in 1970 by Irish and Mary O’Connor under two basic principles, comfort and service. For over half a century O'Connor Company has been rising to the challenge and meeting the demand for commercial HVAC equipment. Whether working with building owners, mechanical contractors or consulting engineers, we are here to provide continued expertise coupled with quality parts and equipment.

O'Connor Company covers a wide territory throughout South Dakota and Wyoming as well as northwest Iowa, southwest Minnesota and northeast Nebraska.

O’Connor Company is part of HVAC Elements which is the marketing arm that includes G & R Controls and Balancing Professionals. The three independent businesses cover different aspects of the commercial HVAC business. Being a part of HVAC Elements allows customers easy and direct access to expertise in building controls, energy management and testing, analyzing and balancing of HVAC systems. There is no obligation to the sister companies, but the expertise is available if needed.

Community Support

Our organization brings our mission statement “Creating Customers for Life” by caring for our employees, customers, communities, shareholders and environment. We strive to positively affect all the communities in which we are located and serve. 

Our partners encourage employees to lend a hand and donate what they can afford; whether it's time, money, clothes, food, or anything else that might benefit others, to help our surrounding communities. Through the involvement of our employees and our financial commitment, we are all active partners in helping solve community problems and enhancing the quality of life.     

In the way we conduct our business, we do our best to demonstrate our commitment to improving the environment, by constantly acting on our value of community involvement. Our goal is to set the standard for other companies to follow.