Hartzell’s Heat & Air has served northwest Oklahoma for 15+ years. Call us at 405-375-4822 or use the form below to schedule service, request a free estimate on a new system, or ask a question.
Business Hours
Monday – Friday: 8:00 AM – 5:00 PM
Emergency Service: Available after hours
For after-hours emergencies, call 405-375-4822.
What to Expect
We confirm your appointment. After you schedule, we’ll call to confirm your appointment window so you’re not left guessing.
Transparent pricing up front. A $99 dispatch fee applies to every service visit. A $111 diagnostic fee applies for repair calls — this is credited toward your repair or replacement if you accept an estimate within 14 days.
Free estimates on new systems. If you’re considering a new heat pump, air conditioner, furnace, or geothermal system, estimates are always free. No pressure, no obligation.
💳 Payment Methods Accepted
💵 Financing Available
Financing subject to credit approval. Call 405-375-4822 to discuss options.
Contact Hartzell’s Heat & Air
📍 Locations
Office
602 S. Main St.
Kingfisher, Oklahoma 73750
Shop & Facility
107 N. Main St.
Kingfisher, Oklahoma 73750
4,000 sq ft service facility
🕐 Hours
Monday – Friday: 8am – 5pm
Emergency service: 24/7
Call 405-375-4822 after hours
⚠ After-Hours Emergency?
We provide 24/7 emergency heating and cooling service. Call 405-375-4822 any time — day or night.
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Request Service
Fill out the form and I’ll call you back to confirm. Prefer to talk? Call 405-375-4822 any time.
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Happy With Your Service?
We’re grateful for every review. If Hartzell’s took care of you, a Google review helps other homeowners in central Oklahoma find a contractor they can trust.
Nearby Communities We Serve
Service Area
Kingfisher, Hennessey, Okarche, Cashion
Enid and surrounding area
Watonga, Geary, Canton
El Reno, Yukon, Mustang
Guthrie and surrounding area
Fairview, Ringwood, Lahoma
Edmond, Piedmont, Okarche, Yukon
Geothermal heat pump installations are available statewide throughout Oklahoma. Call 405-375-4822 to confirm service availability in your area.
Hartzell’s serves central Oklahoma within approximately 60 miles of Kingfisher — including Oklahoma City, Edmond, Enid, Guthrie, El Reno, Yukon, Mustang, Piedmont, Hennessey, and Watonga. For geothermal heat pump projects, we travel anywhere in Oklahoma. Full service area ›
Frequently Asked Questions
What areas does Hartzell’s serve?
Hartzell’s serves Kingfisher, Garfield, Blaine, Canadian, Logan, and Major counties in northwest Oklahoma, as well as the northwest Oklahoma City metro corridor.
What are your business hours?
Office hours are Monday through Friday, 8:00 AM to 5:00 PM. Emergency HVAC service is available 24/7 — call 405-375-4822 any time.
Do you charge a fee to come out?
Yes. A $99 dispatch fee applies to every service visit. A $111 diagnostic fee applies for repair calls and is credited toward your repair or replacement if you accept an estimate within 14 days. PMA members: dispatch waived on your included tune-up visit only; repair calls still pay $99.
Do you offer free estimates?
Yes. Free estimates are available for all new system installations — heat pumps, geothermal, central air, furnaces, and mini-splits. Call 405-375-4822 to schedule.
Ready to Schedule?
Call for same-day service or book online. Upfront pricing. No surprises.
What Our Customers Are Saying
4.8 stars • 271 verified Google reviews