HVAC

Heat Pump in Greater Zionsville Area

Johnson Heating, Cooling, and Plumbing

Need reliable heat pump help with clear options and no pressure? Johnson Heating, Cooling, and Plumbing services, repairs, and installs heat pumps the right way. Cost and timing are explained upfront by NATE-certified techs. Serving the Greater Zionsville Area, including Indianapolis, Carmel, and Greenwood. Rated 4.9 from 1,622 reviews. Before winter sets in, schedule a tune-up to stay efficient. Call (317) 406-4659 or book online today.

Why Choose Us

  • NATE-certified technicians

    Background-checked and drug-tested experts on every job

  • Licensed, bonded, insured

    Fully licensed, bonded, and insured for your protection

  • Decades of local experience

    Serving Central Indiana since 1968

  • Industry-leading guarantees

    Fixed Right, or It’s Free money-back installation guarantee

  • Highly rated service

    4.9 rating from 1,622 reviews

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Reviews

What Our Customers Say

Customers mention

  • professionalism1
  • value1
  • quality1

Based on the reviews shown here.

  • Professional job installing mini split. On time service. Great price.
    HeyFlashman
  • Roy did a great job servicing our furnace and a/c-heat pump.
    David W.

FAQs

Frequently asked questions

Still have questions?

Why Is My Heat Pump Not Cooling on Hot Days?

A heat pump that is not cooling on hot days usually points to an airflow restriction or a refrigerant-side issue. Airflow reduction is the most common summer cause because the system cannot shed heat fast enough under heavy load. Low refrigerant, weak fan motors, or control problems can also appear only when outdoor temperatures spike. One technician cue: a system that cools at night but not in the afternoon often has a marginal charge or coil that’s loading up with heat. Our team regularly sees these patterns during Indianapolis heat waves and resolves them with cleaning, testing, and proper charging. For urgent no-cool situations, emergency heat pump repair is available.

Try these quick checks before calling:

  • Replace the air filter and confirm all supply and return vents are open.
  • Gently hose debris from the outdoor coil fins (power off first).
  • Set thermostat to Cool and fan to Auto; confirm the outdoor fan spins.
  • If you see ice, repeated breaker trips, or loud humming/clicking, stop using and call for service.

If the outdoor coil feels very hot but indoor air stays warm, turn the system off to prevent damage and schedule a diagnostic.

Updated: 2026-04-04

Need help in Indianapolis, IN? Call 317-830-5862 or book online.

When should you replace a heat pump?

Replace a heat pump when it’s old, inefficient, or needs repairs so often that costs and comfort no longer make sense. The most common trigger is repeated breakdowns or rising utility use despite proper maintenance. If bills keep climbing even after clean filters and clear coils, performance is likely fading. Our team often sees these patterns during Greenwood-area service visits. Free installation quotes are available if you want to compare repair versus replacement.

Look for these recurring signals before you decide:

  • Frequent repair visits or parts failures in a short span
  • Higher energy bills compared with prior seasons
  • Poor airflow, odd noises, or musty odors returning after tune-ups
  • Rooms that won’t stay comfortable or short heating/cooling cycles

Schedule a professional assessment before peak season so you’re not forced into a rush decision.

Updated: 2026-11-06

Need help in Greenwood, IN? Call 317-830-5862 or book online. “Lucas, our technician did a very thorough job of tuning up our heat pump and answered all of my questions.” — Carol G.

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