Emergency HVAC · Oklahoma City

Heat or air out tonight? Answered, 24 hours.

When the system dies in a heat wave or a hard freeze, you need a technician, not a call center. I cover northwest Oklahoma City, Yukon, Mustang, Edmond and the metro from Kingfisher, about 45 minutes out, and I will tell you straight whether it needs a truck tonight or can wait.

4.8 stars · 300+ Google reviews · Same day where the schedule allows · Se habla español

After-hours emergency
$309
$198 dispatch plus $111 diagnostic. Non-refundable, not credited toward the repair.
Business hours
$210
$99 dispatch plus $111 diagnostic, the standard service call.
Repair price
Before the work
Told to you up front. No surprise invoice after the fact.
Safety first

Gas smell, smoke, or a CO alarm?

Leave the house now. Do not flip switches or use the phone inside. Call your gas company or 911 from outside. When the utility says it is safe, call me and I will find the cause.

  • No heat in freezing weatherA furnace or heat pump down in winter is a safety emergency.
  • No cooling in extreme heatOklahoma summers go past 100. Indoor heat gets dangerous fast.
  • System will not turn onElectrical, the control board, or a capacitor.
  • Burning smell from ventsA possible electrical problem or an overheating part. Shut it off.
  • Water or refrigerant leakProperty damage and system failure if it is left. Keep clear of anything electrical near water.
  • Frozen AC unitAirflow restriction or refrigerant. Shut it off and let it thaw.
Heavy snow covering an Oklahoma backyard in the January 2026 winter storm
January 2026. This is when the calls stack up.
Gas furnace in a closet on an Edmond call
Closet furnace, Edmond.
Run capacitor inside an outdoor AC unit
A dead capacitor in July.
Burned AC contactor showing heat damage and pitted contacts
A burned contactor stops everything.
What I fix

Emergency heating and cooling

  1. Gas furnacesIgnitor, gas valve, heat exchanger, blower motor, pilot and ignition problems.
  2. Heat pumpsRefrigerant, a stuck reversing valve in January, the defrost board.
  3. Central ACCompressor hard starts, refrigerant leaks, capacitors and contactors, condenser fan motors.
  4. ControlsThermostats, control boards, circuit failures.
  5. Parts on orderIf a part has to be ordered, I tell you the timeline honestly.
Gas furnace repair and service in Hennessey
Furnace repair.
Heat pump repair and service in Okarche
Heat pump repair.
Condenser fan motor assembly on a residential outdoor unit
Condenser fan motor.
Why call me

Not a franchise. Your neighbor.

Certified

NATE and Master HVAC

A real diagnosis, not a parts-swap guess. Oklahoma Master HVAC License.

Diagnosis first
Honest

Price before the work

The emergency rate is one number, $309, and the repair is priced before I start.

After hours $309All my pricing
Local

47 years in the trade

Locally owned in Kingfisher for 15+ years. Every major brand, common parts on the truck.

Trane Comfort Specialist (TCS SELECT)

Equipment aging and repairs adding up? HVAC replacement in Oklahoma City.

Proof

When it matters, call someone proven

4.8
Google rating
300+
Google reviews
6,500+
Jobs completed
47
Years in the trade
Summer and winter

Why an outage turns into an emergency here

Oklahoma summers are brutal. A failed AC can make a home unlivable within hours, and a heat wave is when the calls stack up. In January it is the other way around: a furnace or heat pump down in a hard freeze is a safety problem, not an inconvenience. That is why I treat no-heat and no-cool calls in Oklahoma City as the ones that go first.

During business hours the standard repair call is $210 flat: $99 dispatch plus $111 diagnostic. A true after-hours emergency is $198 dispatch plus $111 diagnostic, $309 total, and it is non-refundable. Either way the repair itself is priced before any work starts.

Before I leave

My job is not done until you are satisfied

  • Running and testedThe system is running, tested, and set to the temperature you want.
  • You know how to run itYou understand how to operate the equipment or thermostat.
  • Clean work areaMy crew takes its trash with it.
  • Paperwork in handYou have the documentation for the manufacturer warranty.
  • Every question answeredBefore we leave the driveway.

Where I run in the metro: Oklahoma City, Edmond, Yukon, Mustang, and across Oklahoma County and Canadian County.

Written by Dave Hartzell, owner of Hartzell’s Heat & Air. Oklahoma Master HVAC license, NATE certified, 47 years in the trade.

Frequently asked

Straight answers

Do you charge extra for emergency HVAC service in Oklahoma City?

After hours is $309: $198 dispatch plus $111 diagnostic, non-refundable and not credited toward the repair. During business hours the service call is $210 flat.

How fast can you get to Oklahoma City?

I am based in Kingfisher, about 45 minutes from the metro. Urgent no-heat and no-cool calls go first, and I aim for same day.

What if my system cannot be repaired the same day?

I diagnose it and tell you exactly what it needs. If parts have to be ordered, you get an honest timeline.

Can you service all brands?

Yes. Trane, Carrier, Lennox, Goodman, Rheem, York, American Standard, Daikin and more. Common parts ride on every truck.

Do you smell gas?

Leave the house now, do not flip switches or use the phone inside, and call your gas utility or 911 from outside. Once the utility says it is safe, call 405-375-4822 and I will find the cause.

HVAC emergency in OKC?

Call now. Answered 24 hours a day.

I will tell you honestly whether it is an emergency dispatch or something that can wait until morning.

Call 405-375-4822

Oklahoma City, Edmond, Yukon, Mustang, Piedmont, Bethany, Warr Acres, The Village, Nichols Hills and Oklahoma County. Se habla español.

Hartzell's Heat and Air service van
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