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AC Replacement in Columbus, MN

We replace central air on Columbus houses for $5,200–$9,800 installed, flat-rate and in writing, with a matched coil and a Manual J sizing. Connexus Energy supplies power to nearly all of Columbus and offers a central AC rebate, and a heat pump that works with your propane or gas furnace is worth pricing too.

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AC replacement in Columbus: $79 trip charge, waived with the repair.

We'll call or text you back about this request only. Rather talk now? Call 612-429-3465.

AC replacement calls in Columbus homes

Replacing an AC on a 1960s or 70s Columbus house calls for a new condenser, an indoor coil built for its refrigerant on top of the existing furnace, and a check of the ductwork, which was often sized for heat long before central air arrived. Older line sets that don't suit the new refrigerant or size get replaced; newer ones can sometimes stay.

A big lot gives options outdoors, but the condenser still belongs close to the house to keep the line set short, on a level pad, out of the mower's path and away from roof runoff. The electrical side, including the disconnect and circuit, falls under a state electrical permit in Columbus. Connexus members can add a central AC rebate and the Wi-Fi PowerNap program. On a propane house, pricing a heat pump against a straight AC makes sense, because the heat pump also covers spring and fall heating that propane would otherwise carry.

Updated September 26, 2026

How much does a new central AC cost in Columbus?

A new central air conditioner from us runs about $5,200–$9,800 installed in Columbus, sized with a Manual J load calculation. Same prices in Columbus as in every town we serve. See the AC replacement cost guide or furnace and AC together.

Are there rebates for a new air conditioner in Columbus?

Connexus Energy, the electric co-op for nearly all of Columbus, pays rebates on ducted and ductless air-source heat pumps, ground-source systems and central air, and offers a lower dual-fuel rate and Wi-Fi PowerNap. Ask Connexus whether a given rebate requires a registered contractor. Where natural gas reaches, CenterPoint Energy's furnace rebates work with the dealer of your choice, and Xcel Energy runs its own heating equipment rebates. Homes in the small Xcel electric corner use Xcel's cooling and heat pump programs instead. Rebate programs change every year, so check the utility's current terms before you buy.

Our guides: Xcel and CenterPoint rebates, heat pump rebates.

Outdoor unit of a ductless heat pump on a ledge beside a house wall and window

Signs it's time to replace your AC

  • An R-22 system with a refrigerant leak
  • A failed compressor on an older unit
  • A leaking evaporator coil on a system that's had other major repairs
  • A system that has needed refrigerant more than once
  • Upstairs rooms that never cool, even with the AC running all afternoon
  • A house that reaches the setpoint but still feels damp
  • Repair quotes that keep coming back for the same system

More detail on our ac replacement & installation page.

AC replacement in Columbus: questions

How big should a heat pump be alongside the propane furnace in our Columbus house?

Sized to the cooling load, which a Manual J sets, rather than to cover every winter hour. The propane furnace handles the coldest days, so the heat pump doesn't need to be oversized for January, and an oversized one short-cycles and dehumidifies poorly in July. A cold-climate model keeps heating well below freezing. We set the changeover temperature so the heat pump runs whenever it's cheaper than propane.

Can a new AC or heat pump on our Columbus house use the old electrical circuit?

Often, but the nameplate decides. Every outdoor unit lists a minimum circuit ampacity and a maximum breaker size, and the existing wire and breaker have to match them. A like-for-like AC swap usually reuses the circuit. A heat pump with electric backup strips needs much more capacity, which is one reason pairing it with the propane furnace makes sense. In Columbus, electrical permits come from the State of Minnesota, and the state inspects the work.

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AC replacement in Columbus? Call or send a request.

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We'll call or text you back about this request only. Rather talk now? Call 612-429-3465.

Call 612-429-3465Request service