An old AC that limps through the Oklahoma summer usually quits on the hottest day, when everybody needs me at once. If yours is on its last legs, let me look now while I can still get you on the schedule. Free estimates on new systems, and I keep same-day spots open for no-cool calls across Kingfisher and Central Oklahoma. $99 dispatch, $111 diagnostic on repairs. 4.8 stars across 289 reviews. Call 405-375-4822 or book at hartzellsheatair.com.
Straightforward pricing
$99 dispatch on every truck roll. Free on new-install estimates.
$111 diagnostic, credited toward the repair if you accept within 14 days.
Free estimates on new installs. No charge to walk through replacement options.
Light Commercial HVAC Service in Kingfisher, Oklahoma
When your restaurant cooler quits during dinner rush or your retail storefront hits 85 degrees in July, you need someone who picks up the phone. I service light commercial HVAC across Kingfisher County and Central Oklahoma. Same Master HVAC license, same 45-year career, same honest pricing as residential. Just bigger units and faster response when downtime costs you money.
4.8 stars / 289 reviews. Master HVAC License. Same-day available on commercial emergencies.
Light Commercial Clients I Service
Restaurants, bars, cafes (walk-in cooler plus dining HVAC)
Retail storefronts and small showrooms
Small offices and co-working spaces
Churches and community halls
Daycares and private schools
Salons, spas, barber shops
Small manufacturing and light industrial (under 10 ton)
Veterinary clinics
If your facility runs under 25 ton total cooling load and isn’t a heavy industrial process site, I can probably help. Ask me first instead of waiting for a “we don’t do commercial” answer from your residential guy.
Commercial refrigeration is food safety, and I treat it that way
Restaurants and food producers cannot afford a warm cooler. I keep the AC and walk-in coolers running right at the Kingfisher and Fairview Sonic locations, at the Burger Shoppe here in Kingfisher, and at the 7Brew Coffee drive-thru in Yukon. I keep the reach-in freezers steady at Glazier Farms in Loyal, where they raise dry-aged Oklahoma beef and fresh chicken. Every one of those systems has to hold the temperature the state requires, so these folks pass inspection and never lose product.
Most of these are not one-time calls. They are long-term accounts I have serviced for years, the same businesses calling me back because the work holds up.
Beyond food service, I keep climate and equipment running for oil and gas operations across the Anadarko Basin, licensed Oklahoma cannabis grow and dispensary facilities, national retail stores, and behavioral health offices. If it cools, heats, or has to hold a temperature, I have probably worked on it. Commercial refrigeration and industrial HVAC are not a side job for me. Call me at 405-375-4822 before you settle for a residential outfit that does not do commercial.
A commercial rooftop unit I service. Light commercial is steady work around Kingfisher.A commercial rooftop unit I service. Light commercial is steady work around Kingfisher.A commercial rooftop unit I service. Light commercial is steady work around Kingfisher.A commercial rooftop unit I service. Light commercial is steady work around Kingfisher.
>Light Commercial Services
Emergency HVAC repair (same-day available)
Rooftop unit (RTU) service and install
Walk-in cooler and freezer service
Commercial refrigeration repair
Preventive maintenance contracts
New install and replacement
Geothermal commercial install (IGSHPA Accredited)
Light commercial controls and thermostats
Refrigerant management and R-454B transition
Walk-In Cooler or Freezer Tune-Up: 79
Weekday mornings 7am-3pm. Coil clean, refrigerant check, controller verification, door gasket and defrost cycle inspection.
Most residential HVAC shops do not touch commercial refrigeration. I do. 45 years on the tools means 45 years that includes walk-ins, ice machines, and bar systems. Restaurant, bar, deli, salon, retail, venue: same Master HVAC license, same direct line, same Kingfisher pricing structure.
Sizing a brand-new walk-in cooler or freezer? See my walk-in installation guide with sizing calculator, BTU load math, and real Oklahoma install pricing.
See the full breakdown of walk-in coolers, reach-ins, bar coolers, ice machines, wine coolers, humidors, and venue refrigeration on the Commercial Refrigeration Equipment & Pricing page. Includes the 79 walk-in tune-up details, 25 to ,600 repair ladder, and the 40/yr Commercial PMA.
Commercial Refrigeration Equipment I Service
Most residential HVAC shops won’t touch commercial refrigeration. I will. 45 years experience covers all of it.
Diagnostic (credited toward repair if accepted in 14 days)
$111
New system estimate
Free
RTU install and replacement
Custom quote, no hidden fees
Walk-in cooler / freezer tune-up (weekday AM)
$279
Commercial refrigeration repair (walk-in, ice machine, bar cooler, etc.)
$325 to $3,600
Preventive maintenance contracts
Quoted to equipment count
Pricing is the same structure as residential. I don’t tack on a “commercial markup” just because the building has a logo on the front.
Why Light Commercial Owners Pick Me
Master HVAC License
State-level credential. Only one for the job. Means I can pull permits and sign off on commercial work without sub-contracting it.
Same-Day Available
Downtime costs money. I treat commercial emergencies like residential emergencies and prioritize accordingly.
45-Year Career
I’ve worked walk-in coolers, rooftop units, and small chillers for decades. Light commercial is familiar territory.
4.8 Stars / 289 Reviews
Real customers, real reviews. Mix of residential and light commercial across Central Oklahoma.
Frequently Asked Questions
How fast can you respond to a commercial HVAC emergency in Kingfisher Oklahoma?
Same-day is the goal. I prioritize commercial down calls over routine residential. Call 405-375-4822 and say it’s commercial. Inside Kingfisher County, response typically runs 60 to 120 minutes during business hours.
Do you service walk-in coolers and freezers?
Yes. Compressor failures, refrigerant leaks, coil icing, defrost issues, controller problems, door gaskets. R-404A and R-448A routine. New install quoted custom to box size and load.
What’s the difference between residential and light commercial HVAC?
Bigger tonnage, three-phase power, different refrigerant management, tighter response expectations. Light commercial is 3 to 25 ton single-unit, often packaged rooftop. Heavy industrial process cooling is outside my scope.
Do you offer commercial maintenance contracts?
Yes. Custom contracts sized to your equipment count and building hours. Most sites get spring and fall visits covering coils, refrigerant, belts, filters, controls, and condensate. Ask for a quote.
How much does a rooftop unit (RTU) replacement cost?
5 ton straight-cool RTU typically $9,000 to $14,000 installed. 10 ton $15,000 to $22,000. High-efficiency or economizer-equipped adds 15 to 25 percent. Free estimate, custom quote, no hidden fees.
Commercial HVAC down? Let’s get you back up.
Restaurant, retail, office, church, daycare, salon, small shop. I service it all across Kingfisher County and Central Oklahoma. Same-day available on emergencies.
Hartzell’s Heat & Air, 602 S Main St, Kingfisher OK 73750. Serving Kingfisher, Canadian, Blaine, Logan, Garfield, Major counties and surrounding Central Oklahoma.
What can we help you with?
Ask about services, pricing, repairs, rebates, or anything HVAC.
