OnlyLocal
Verified Independent

Schultz HVAC Services

Owned and operated by Diana Stoltzfus

Carmel, INhvac2-10 People
4.2(19 reviews)

About

Thanks for stopping by. I'm Diana, and Schultz HVAC Services has called Carmel home since 2007. I served in the Navy before getting into the trades, and that discipline shows up in our jobsite cleanliness. I personally walk every job before we start so the homeowner knows exactly what to expect. We'll show up when we say we will, and we'll leave your home cleaner than we found it. Demo listing

Years in business
19
Team size
2-4
Primary service area
Carmel, IN

Services

Whole-home humidifier installDuctless mini-split installSmart thermostat installAC installationFurnace tune-ups & repairHeat pump installationIndoor air quality testing

Service area

ZIP codes served:

  • 46032
  • 46033

Reviews

4.2
19 reviews
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Eric B.

May 2, 2026

Verified customer

Not bad but not great either. Diana added a smart thermostat and walked my dad through how to use it, and the whole crew took the time to answer every question we had. They also sent us photos of the progress while we were at work, which we really appreciated. Fine for a basic job, not sure for anything complex.

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Garrett H.

May 2, 2026

Verified customer

Quality work, fair price. Diana and they added a smart thermostat and walked my dad through how to use it.

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Stephanie L.

May 2, 2026

Verified customer

Disappointing experience honestly. Diana and the crew installed a Mitsubishi mini-split in our bonus room above the garage.

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Cindy S.

May 2, 2026

Verified customer

Wow — what a refreshing experience. Diana and they replaced a cracked heat exchanger and explained exactly why it failed, and they explained everything in plain English without talking down to us. Saved their number to favorites.

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Drew C.

May 2, 2026

Verified customer

Hands down the easiest home-service decision we've made. Diana and they replaced our 20-year-old furnace right before a deep freeze, and they showed up exactly when they said they would. If you're on the fence, just call them.

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Carol G.

May 2, 2026

Verified customer

Couldn't be happier with how this turned out. Diana diagnosed a ductwork airflow issue that previous companies just sold us on a new unit for, and the whole crew explained everything in plain English without talking down to us. They also stuck to the original quote with no surprise add-ons, which we really appreciated. Will be using them for everything from now on.

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Wade V.

May 2, 2026

Verified customer

Would recommend to friends. Diana and they installed a new variable-speed AC and the upstairs is finally comfortable.

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Steve P.

May 2, 2026

Verified customer

Solid work overall, would use again. Diana and they diagnosed a ductwork airflow issue that previous companies just sold us on a new unit for, and they took the time to answer every question we had. Highly recommend with one minor caveat — but no big deal.

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Holly D.

May 2, 2026

Verified customer

Truly above and beyond. Diana and they replaced a cracked heat exchanger and explained exactly why it failed.

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Logan H.

May 2, 2026

Verified customer

Dependable and easy to work with. Diana and they tuned up our system in October and it ran flawlessly all winter, and they wore booties in the house without being asked. Glad we picked them.

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Connor S.

May 2, 2026

Verified customer

Could not ask for better. Diana set up a whole-home humidifier and we finally don't get nosebleeds in winter, and the whole crew left the worksite cleaner than they found it. They also showed up exactly when they said they would, which we really appreciated. Will be using them for everything from now on.

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Jim H.

May 2, 2026

Verified customer

We are so glad we found Diana and the team. Diana and they replaced a cracked heat exchanger and explained exactly why it failed, and they explained everything in plain English without talking down to us. Ten out of ten — this is how it should be.

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Rachel W.

May 2, 2026

Verified customer

Truly above and beyond. Diana and they installed a new variable-speed AC and the upstairs is finally comfortable, and they sent us photos of the progress while we were at work. Saved their number to favorites.

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Ed D.

May 2, 2026

Verified customer

It was okay — got the job done. Diana and the team diagnosed a ductwork airflow issue that previous companies just sold us on a new unit for.

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Austin H.

May 2, 2026

Verified customer

Solid work overall, would use again. Diana and they installed a new variable-speed AC and the upstairs is finally comfortable, and they made sure our dog was comfortable around the crew. Highly recommend with one minor caveat — but no big deal.

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Wesley D.

May 2, 2026

Verified customer

Really pleased with the result. Diana and they added a smart thermostat and walked my dad through how to use it, and they picked up after themselves every single day. Glad we picked them.

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Connor Y.

May 2, 2026

Verified customer

Great experience with one tiny nitpick. Diana and they tuned up our system in October and it ran flawlessly all winter.

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Amanda K.

May 2, 2026

Verified customer

These folks are the real deal. Diana and they replaced our 20-year-old furnace right before a deep freeze, and they left the worksite cleaner than they found it. Will be using them for everything from now on.

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Kelly V.

May 2, 2026

Verified customer

Decent work, mixed feelings. Diana and the team installed a new variable-speed AC and the upstairs is finally comfortable, and they made sure our dog was comfortable around the crew. Fine for a basic job, not sure for anything complex.