It's not just any building. It's your building. Your building deserves the highest levels of quality and service for its heating, ventilation, and air conditioning (HVAC) system. Our commercial HVAC equipment is specified by experts to ensure efficiency, quality and long-standing durability. We are not just here for you during the initial sale, O'Connor Company is committed to "Creating Customers For Life" by offering replacement parts, assisting with warranty issues and keeping building plans and technical files, to answer future questions in a timely manner.

O'Connor Company was founded in 1970 by Irish and Mary O'Connor under two basic principles, comfort and service. For nearly 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 as well as northwest Iowa, eastern Wyoming and Montana and Nebraska.

HVAC systems play an important roll in industrial processes and their unique challenges. Large warehouses and manufacturing industries must satisfy occupant comfort as well as product/production safety. O'Connor Company partners with several HVAC product lines to provide customers with a variety of options to meet the specialized needs of these facilities. From circulation fans to heating, cooling and ventilation solutions in industrial settings, we have a perfect solution to your HVAC needs.

O'Connor Company is the leader in providing high quality, efficient HVAC equipment and replacement parts. We take pride in the commercial growth of our regions and are committed to providing your building with efficient HVAC equipment. The cost of business continues to rise. We are committed to providing energy efficient systems that save companies money. Our diverse product line allows us access to HVAC equipment for a variety of end users. We have provided equipment for a variety of commercial industries including manufacturing facilities, indoor aquatic facilities, IT and server rooms, event and stadium venues, airports, restaurants/kitchens, and more.

Building owners and facility managers have dozens of things to worry about each day; the HVAC equipment in the building shouldn't be one of them. O'Connor Company only sells high quality equipment to ensure the system will function as intended. Our aftermarket parts department [link to 2.2 Replacement Parts] fully stocks warehouses in Sioux Falls and Rapid City, South Dakota to provide customers with quick access to consumables and parts (belts, filters, gaskets, actuators, etc.) as well as the ability to order and replace larger items as necessary by equipment age (motors, compressors, etc.).

O'Connor Company carefully selects the manufacturers we represent and only ones of high quality trusted equipment are selected. The soundness of the equipment, product warranties and customer service support are considered during the selection process. Explore the manufacturers that we represent to provide comprehensive HVAC equipment to commercial customers.

Founded in 1970 we continue to operate under two basic principles, comfort and service. We specialize in commercial HVAC equipment and offer fully stocked warehouses with knowledgeable staff to help you. Our leadership team is heavily involved in the daily operations of the business as well as serve customers is a salesmanship role.

We offer access to quality HVAC equipment and parts to commercial contractors. Whether your projcet is large or small, our experience includes primary schools and universities to hospitals, government buildings and large industrial contracts. Our HVAC products and systems are expertly specified by knowledgeable specialists and offered at a fair price.

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