Hartzell's Heat & Air

Hartzell's Heat & Air has anchored itself at 602 S Main St in Kingfisher, OK since 2011, earning a 4.8-star rating across 282 reviews. The company holds Master HVAC and NATE certifications, along with IGSHPA accreditation for geothermal work and maintains an A+ rating with the Better Business Bureau. Operating 24/7 with emergency service, the business serves Kingfisher County and extends reach into Oklahoma County, providing both residential and commercial HVAC solutions.

What distinguishes Hartzell's Heat & Air is their specialization in ClimateMaster geothermal systems alongside traditional Trane equipment. They offer smart diagnostics and indoor air quality solutions including zoning systems. Their tune-up maintenance plan runs $138 annually with transparent pricing: $99 dispatch fee and $111 diagnostic fee. The company handles new construction installations, commercial HVAC, and even niche projects like cannabis cultivation climate control and controlled environment agriculture systems.

Reviewers consistently mention technicians Tim, Ace, and Carl by name. Tim earned multiple shoutouts for thoroughness and same-day part ordering after diagnosing issues. Ace was praised for providing multiple repair options with clear cost-benefit explanations. One reviewer noted Tim arrived within a day of the service call, while another described Ace and Carl as outstanding performers who explained everything clearly during their first visit. A 2-star review flagged concerns about diagnostic fee transparency, though positive reviews emphasize professional communication and effective problem-solving.