Heat pump repair & replacement in Columbia, SC

One system for heating and cooling — and a strong fit for the Midlands' mild winters. On Call's NATE-certified technicians repair heat pumps from every major brand and install high-efficiency Trane heat pumps across Columbia and the Midlands.

Request a service

For urgent help, call (803) 781-4357.

How a heat pump works

Instead of burning fuel, a heat pump moves heat. In summer it pulls heat out of your home; in winter it pulls heat from the outdoor air and brings it inside. Because it's moving heat rather than making it, a well-matched heat pump can heat and cool your home efficiently year-round.

Heat pump repair

Working in cooling but not heating — or the other way around? The reversing valve that switches modes is one possibility, but controls, airflow and other parts can cause the same symptom. Our technicians diagnose the real cause before recommending a part, and check how both seasons are working.

Signs your heat pump needs attention

  • Not heating or not cooling

  • Outdoor unit covered in ice that doesn't clear

  • AUX or EM HEAT running constantly

  • New noises or a sudden jump in your electric bill

  • Rooms that won't stay comfortable

Heat pump replacement

We size your new heat pump for your home's heating and cooling needs, not just the old nameplate. Your quote covers matched indoor and outdoor Trane equipment, controls, backup heat and any duct, electrical or drain changes — one firm price. Adding comfort to a room without ducts? A ductless heat pump may be the better fit.

How we can help

Your technician diagnoses the problem on site and gives you a firm price before any work begins. Our residential diagnostic fee is $89, waived when you go ahead with the repair. Pay by cash, check or card, or ask your technician to walk you through financing options.

Family-owned since 2011, licensed in South Carolina (Mechanical License CLM.111515 MC), BBB Accredited and rated 4.9 stars from 298 Google reviews.

A few common questions.

Does a heat pump cool as well as heat?

Yes. A heat pump moves heat out of your home in summer and brings heat in during winter — one system for year-round comfort.

My heat pump runs a lot. Is something wrong?

Not by itself. Heat pumps naturally run longer, gentler cycles than furnaces, and the air feels cooler even when they're working right. If your home isn't staying comfortable or your bills have jumped, have it checked.

Will a bigger heat pump fix an uncomfortable room?

Usually not. A room that's always uncomfortable is often an airflow or ductwork issue. We'll find the cause before recommending new equipment.

Does frost or "AUX heat" mean my heat pump is broken?

No. Light frost and short defrost cycles are normal in cold weather, and AUX heat kicks in when the system needs a boost. Call us if the outdoor unit stays caked in ice, AUX runs constantly or your house isn't staying warm. Don't chip ice off the unit.

On Call branded plumbing, heating and air service van.

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Locally owned and operated in Columbia and the Midlands.
Trained technicians, not trained salespeople.