HVAC Service in Kingfisher County, Oklahoma | Hartzell’s Heat & Air
I was born in Kingfisher County. I went to school here. I opened my shop at 602 S Main St and I have been running service calls in this county for 15+ years. When I say I know these houses, I am not talking about a database. I mean I have been inside them, under them, and on top of them for the better part of four decades. If your heat or AC is giving you trouble in Kingfisher, Hennessey, Okarche, Dover, Cashion, or anywhere in between, call 405-375-4822.
Kingfisher County’s Home HVAC Team · for 15+ years · 405-375-4822
Where Kingfisher County Came From
On April 22, 1889, a pistol fired at noon and thousands of people rushed across the border in the Oklahoma Land Run. Kingfisher County was born that afternoon, out of dust and chaos and people who had nothing and needed everything. The county was not even called Kingfisher at first. It was County Five. On August 5, 1890, voters chose the name “Kingfisher” over “Hennessey” and “Harrison” in a public election. Kingfisher won.
The Chisholm Trail ran through this county. Not as a tourist attraction. As the working highway that moved millions of Texas longhorns north to Kansas railheads between 1867 and 1884. The western freight route came right through the Kingfisher Stage Station, which sat on what is now downtown Kingfisher. My shop is on S Main St. That land had cattle drovers camping on it 140 years ago. On July 6, 1874, a freighter named Pat Hennessey was tied to his wagon wheel and burned alive by Cheyenne warriors near the Kingfisher-Garfield county line. The town of Hennessey is named after him. That is the kind of history that does not make it into the tourism brochures.
Sam Walton was born in Kingfisher on March 29, 1918. W.C. Coleman sold his first lantern here in 1903, and that is where the Coleman Company started. The county has always been a place where people with a vision showed up and built something from scratch.
The Volga Germans settled here too. German families who had lived on the Russian steppes before emigrating, looking for flat farmland and religious freedom. They named one of their towns Kiel, after the German port city. In 1918, with World War I anti-German sentiment running hot, the community voted to rename it Loyal, a whole town choosing a new name to prove its place in this country. The population today is about 71 people. I have been in homes there. The land and the people in this county have always had more history than most folks outside it realize.
Kingfisher County Communities
Your Local HVAC Contractor for 15+ years
Dave Hartzell opened Hartzell’s Heat & Air right here in Kingfisher about 15 years ago, backed by 45 years of HVAC experience. We’re not a franchise. We’re not an OKC company that drives out when the calendar allows. Our trucks are based in Kingfisher : this is where we live, where we sponsor the soccer program, where we advertise in the Kingfisher News. When you call us for service in Kingfisher County, you’re usually getting same-day response because we’re already in the area.
Full HVAC Services : Kingfisher County
- Emergency HVAC: 24/7, 365. If your heat goes out on a January ice storm night, call 405-375-4822.
- AC Repair: Same-day diagnosis and repair. $111 diagnostic credited toward repair.
- Geothermal Installation: KPWA serves Kingfisher city (confirmed rebates, call 405-375-3705 for amounts). Cimarron Electric serves parts of Kingfisher County at $600/installation. We process all paperwork.
- System Replacement: Manual J sizing, then install. Brands: Trane, RunTru, Mitsubishi, ClimateMaster, Daikin, Carrier.
- Maintenance Plans: Dave’s 360 Plan for Kingfisher County homeowners. Two tune-ups/year, 15% off all repairs.
- Ductless Mini-Splits: Mitsubishi Diamond Dealer. 12-year warranty. Perfect for Kingfisher County homes with additions or rooms without ductwork.
- Financing & Payment Options: 0% interest financing through Synchrony and flexible monthly payments through Wisetack on qualifying equipment.
Kingfisher County Utility Rebates
KPWA (Kingfisher Public Works Authority) serves Kingfisher city with confirmed geothermal rebates : call 405-375-3705 for current amounts. Cimarron Electric Cooperative serves rural portions of Kingfisher County with a $600 geothermal rebate per installation. Hartzell’s handles rebate documentation for both programs.
Cimarron Electric Cooperative also serves parts of Kingfisher County at $600 per geothermal installation. Hartzell’s handles all rebate documentation for both utilities. See all Oklahoma rebates ›
Dave Hartzell’s Kingfisher Credentials
Master HVAC License
Oklahoma state licensed
NATE Certified
National HVAC certification
IGSHPA Accredited
Geothermal installer cert
Trane TCS SELECT
Trane Comfort Specialist
Mitsubishi Diamond
12-year ductless warranty
ClimateMaster GeoElite
Geothermal dealer
Common HVAC Questions › · Current Specials › · Equipment Warranties › · See Pricing ›

Water Heater Maintenance in Kingfisher County
We now offer annual water heater inspection and service throughout Kingfisher County. Oklahoma’s hard water , 15–25 grains per gallon , causes sediment buildup that reduces efficiency and shortens your water heater’s life. Our $99/year Water Heater Tune-Up catches problems before they become emergencies. Tank, tankless, and geothermal desuperheater systems , all brands serviced.
$99
/year
Nearby Communities We Serve
The Best HVAC Company in Kingfisher County , Here Since Day One
If you’re looking for the best HVAC company in Kingfisher, here’s what separates Hartzell’s from everyone else: I’m actually from here. My shop is on Main Street in Kingfisher. I know the KPWA utility system, I know Cimarron Electric’s rebate process, and I know which neighborhoods lose power in ice storms. That local knowledge matters when you’re diagnosing an HVAC problem in January at 2 a.m.
4.8 stars across 271 reviews. NATE Certified. Master HVAC License. Mitsubishi Diamond Dealer. Trane Comfort Specialist. IGSHPA Accredited for geothermal. These aren’t credentials I hang on the wall , they’re why Kingfisher County homeowners call Hartzell’s first and the top-rated HVAC company in Kingfisher OK. Call 405-375-4822.
Our HVAC Services
Schedule HVAC Service in Kingfisher County
Same-day service available. Upfront pricing. NATE Certified technicians.
Frequently Asked Questions , Kingfisher County HVAC
What cities in Kingfisher County do you serve?
Hartzell’s is based in Kingfisher and covers every corner of Kingfisher County , including Hennessey, Okarche, Loyal, Cashion, Omega, and Kingfisher city. A $99 dispatch fee applies to all service calls. The $111 diagnostic fee is refunded if you approve the repair.
Do you install geothermal heat pumps in Kingfisher County?
Yes , geothermal is a specialty. We’re ClimateMaster GeoElite certified and have installed systems throughout Kingfisher County. KPWA (Kingfisher city utility) offers geo rebates , ask us about current program details.
What is your typical response time for emergency HVAC calls in Kingfisher County?
Kingfisher city calls are typically triaged within 2–4 hours. Other Kingfisher County locations are usually same-day or next-morning depending on call volume.

