O'Connor Company: Sioux Falls HVAC Experts for Over 40 Years

For decades, O'Connor Company in Sioux Falls, SD has delivered reliable heating and air conditioning solutions to homes and businesses across eastern South Dakota. They understand the local climate—the hot, humid summers and the cold, blustery winters—and how it affects HVAC systems in Sioux Falls homes and commercial buildings. Their team provides both routine service and emergency repairs, with a focus on keeping families comfortable and businesses running smoothly.

Business Overview

O'Connor Company serves residential and commercial customers throughout the Sioux Falls area. They have a team of experienced technicians ready to handle everything from seasonal maintenance to urgent breakdowns. While they work with mechanical contractors and building owners on larger projects, they also help homeowners with everyday HVAC needs. Their approach is straightforward: offer practical, energy-efficient solutions that work well in local buildings.

Key Services

The company covers a full range of heating, ventilation, and air conditioning services. Common needs they address include:

• Heating system installation, repair, and maintenance for furnaces and boilers.
• Air conditioning installation, service, and performance checks.
• Indoor air quality solutions, including ventilation and filtration systems.
• Energy management and building automation for commercial properties.
• System testing and balancing to ensure HVAC equipment operates efficiently.

Whether it’s a residential furnace tune-up before winter or a commercial building automation upgrade, O'Connor Company has the expertise to help.

Areas Served

O'Connor Company works throughout Sioux Falls, SD and many surrounding communities. Their service area includes Brandon, Big Sioux, Split Rock Township, Flandreau, Beresford, Springfield, Volga, Aurora, Tyndall, and De Smet. Having served the region for so long, their technicians know the common HVAC issues found in local homes—from older farmhouses to newer suburban builds—as well as the needs of schools, offices, and institutional buildings in the area.

Company History

The business started in 1970 as a manufacturers’ representative for HVAC equipment. Over time, it grew into the O'Connor Group, which includes three divisions: O'Connor Company, G & R Controls (started in 1977), and Balancing Professionals, Inc. (added in 1992). Together, they provide a complete range of HVAC equipment, temperature controls, building automation, and system testing services. They now have locations in Sioux Falls, Rapid City, Fargo, and Bismarck, but remain rooted in the Sioux Falls community.

Leadership

The company’s leadership brings decades of industry experience to the table. While specific owner details aren’t highlighted publicly, the team’s long tenure in the field speaks to their deep knowledge. They are actively involved with local mechanical contractors, engineers, and building owners, contributing to projects that shape the Sioux Falls skyline and keep area homes comfortable.

Specialties & Highlights

• Energy-Efficient Focus: For over 40 years, they’ve specialized in solutions that reduce energy use and lower utility bills.
• Commercial & Institutional Expertise: They serve schools, offices, and large buildings with customized HVAC and automation systems.
• NEBB-Certified Balancing: Through Balancing Professionals, Inc., they offer certified testing and balancing to maximize system performance.
• Multi-Brand Knowledge: As a manufacturers’ representative, they work with multiple equipment lines, giving customers more options.
• Local Presence: With a home base in Sioux Falls, SD, they understand regional construction styles and climate demands.

Why Locals Choose O'Connor Company

Residents and business owners in Sioux Falls, SD turn to O'Connor Company because they get consistent, knowledgeable service from a team that’s been around for generations. They don’t just install equipment—they look at the whole system to improve efficiency and comfort. Their long history in the area means they’ve seen almost every HVAC challenge Sioux Falls weather can bring, and they know how to fix it. When you need reliable heating or cooling help, O'Connor Company in Sioux Falls, SD brings experience, local know-how, and a practical approach to every job.