HVAC Service Areas, Central Oklahoma

I’m Dave Hartzell. Hartzell’s Heat & Air is based in Kingfisher, Oklahoma, and I serve homeowners and businesses throughout central Oklahoma within a 60-mile radius. My crew and I cover 7 counties and more than 30 communities, from Oklahoma City to Enid, El Reno to Watonga.

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Counties I Serve

Click any county for a dedicated service page with local pricing notes, utility rebate information, and city-by-city coverage details.

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Cities I Serve

Click your city for local service information, area technicians, and available HVAC services near you.

Don’t see your city? Call or contact usif you’re within 60 miles of Kingfisher I can likely help. 405-375-4822

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Statewide Geothermal Installation

For geothermal heat pump installations, I travel anywhere in Oklahoma. As one of the state’s only IGSHPA Accredited Installers, I design and install ground-source heat pump systems with proper load calculations, soil assessment, and loop field engineering.

CKenergy members in their 10-county territory qualify for rebates up to $2,000/ton. OG&E customers qualify for up to $1,000/ton. See 2026 rebate details ›

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HVAC Services I Offer Across My Service Area

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Frequently Asked Questions

How far does Hartzell’s travel for HVAC service?

I serve a 60-mile radius from my Kingfisher, Oklahoma headquarters, covering 7 counties: Kingfisher, Blaine, Oklahoma, Canadian, Logan, Garfield, and Major counties. For geothermal installations, I travel anywhere in Oklahoma.

Does Hartzell’s service Oklahoma City?

Yes. Oklahoma City and the northwest OKC metro area, including Edmond, Yukon, Mustang, and Piedmont, are within my regular service area. My crew and I run the OKC corridor regularly and offer same-day service for most calls in that area.

Does Hartzell’s serve Enid, Oklahoma?

Yes. Enid and the surrounding Garfield County area are within my 60-mile service radius. I handle AC repair, furnace service, maintenance, and equipment replacement in Enid.

What areas qualify for CKenergy geothermal rebates?

CKenergy serves 10 counties: Blaine, Caddo, Canadian, Comanche, Custer, Dewey, Grady, Kiowa, Roger Mills, and Washita. Residential members qualify for up to $2,000/ton (max $24,000). I handle all rebate paperwork as an IGSHPA-Accredited installer.

Is same-day HVAC service available?

Yes. Same-day service is available for most calls in my core service area. For OKC metro and outer-area calls, same-day depends on scheduling. Call 405-375-4822 early in the day for same-day availability.