The Most Reliable Heating Contractor in Sioux City, Iowa

Keeping Clients Warm for Nearly 2 Decades

For nearly twenty years, O’Connor Heating & Cooling has been the complete solution for residential and light commercial heating in Sioux City and the surrounding area. Our technicians are experts at repairing heating systems of every make and model. In addition, we carry and install top quality Rheem heating systems.

Furnace & Heating System Maintenance & Repairs

When it’s cold outside, heat is not a luxury, but rather a downright necessity. The friendly professionals at O’Connor Heating & Cooling can provide regular maintenance on your furnace to ensure that it runs at peak efficiency. We are also experienced in repairing all furnace malfunctions:

Baseboard Heaters


Central Heating Systems

Electric Furnaces

Gas or Oil Furnaces

Heat Pumps


Furnace & Heating System Installation & Replacement

If you are building a new home or your current heating system has reached the end of its life, we would be happy to discuss the heating systems we have available, plus offer you a full, upfront estimate on costs. We’ll work hard to help you find the best system for your needs and budget. Often, a new heating system will quickly pay for itself when repairs become costly or units no longer run efficiently. Call us today for more information.

24/7 Emergency Service

When your heater goes out, time is of the essence. That’s why we provide 24-hour emergency heating system services in the Sioux City area. We return all calls as quickly as we can, and we will offer you a free, no cost estimate for repairs once we have assessed your situation.

We Offer Financing Through FTL Finance

Proud To Serve All Of Siouxland

Sioux City, IA • North Sioux City, SD
South Sioux City, NE • Dakota Dunes, SD
Dakota City, NE • Sergeant Bluff, IA
Jefferson, SD • Lawton, IA

Elk Point, SD • Hinton, IA • Moville, IA • Le Mars, IA
Merrill, IA • Sloan, IA • Onawa, IA
Ponca, NE •  Akron, IA • Salix, IA
Remsen, IA •  Kingsley, IA • Burnsville, IA

O'Connor Heating & Cooling