Commercial Refrigeration Service & Repair in Oklahoma | Hartzell’s

Hartzell’s Heat & Air installs and services walk-in coolers, refrigerated display cases, and commercial freezer systems in central Oklahoma. We hold NATE certification and have serviced commercial refrigeration for restaurants, grocery stores, and food service operations for 15+ years. Call 405-375-4822.

Hartzell’s Heat & Air provides commercial refrigeration service, repair, and installation for central Oklahoma businesses. Walk-in coolers, reach-in cases, refrigerated display cases, ice machines, and commercial freezers. Fast response because refrigeration failures are revenue events.

Commercial Refrigeration · Central Oklahoma · Fast Response · 405-375-4822

See Our Work: Commercial Grow Facility HVAC

Commercial walk-in cooler evaporator coil installation — Hartzell’s Heat & Air
Walk-in cooler evaporator coil service — Hartzell’s handles installation, charging, and preventive maintenance on commercial refrigeration systems.

Commercial climate control demands precision — temperature, humidity, and airflow all affect the operation. Here’s a look at the indoor and outdoor HVAC system we installed for a central Oklahoma grow facility.

Hartzell's service van dispatched to commercial refrigeration service call Oklahoma
Hartzell’s on a commercial refrigeration call — walk-in coolers, freezers, reach-ins. Same diagnostic standards as any HVAC job: find the root cause before replacing parts.
Refrigerant charge verification during commercial refrigeration service call Oklahoma
Refrigerant verification — superheat, subcooling, and system pressures all checked against manufacturer specs. Correct charge is critical for commercial refrigeration efficiency and food safety.

Commercial Refrigeration Services

Walk-In Coolers & Freezers

Repair and maintenance of walk-in refrigeration systems. Compressor service, evaporator coil cleaning, door gasket replacement, temperature control issues.

Reach-In Cases

Repair of commercial reach-in refrigerators and freezers. All major brands. Refrigerant service, electrical diagnosis, control board replacement.

Ice Machines

Commercial ice machine repair, cleaning, and preventive maintenance. Restaurants, bars, hotels, and healthcare facilities throughout central Oklahoma.

Refrigerated Display Cases

Grocery store display cases, deli cases, and beverage coolers. Multi-deck and single-deck case service. Display case coil cleaning and defrost system repair.

Preventive Maintenance

Scheduled PM programs for commercial refrigeration. Coil cleaning, refrigerant level checks, door gasket inspection, temperature log review. Catch problems before they become failures.

New Installations

Walk-in cooler and freezer installations for new businesses and expansions. Sizing, installation, commissioning, and startup in central Oklahoma.

Industries Served

  • Restaurants and food service — walk-ins, prep coolers, ice machines, display cases
  • Convenience stores and gas stations — beverage coolers, reach-in cases, ice merchandisers
  • Grocery stores — display cases, dairy cases, produce coolers, back room walk-ins
  • Healthcare and veterinary — pharmaceutical refrigeration, specimen coolers
  • Agriculture and cold storage — produce cold storage, grain coolers, livestock operation refrigeration
  • Hotels and hospitality — ice machines, minibar service, banquet kitchen refrigeration

Why Commercial Refrigeration Failures Are Different

A residential AC failure is uncomfortable. A commercial refrigeration failure is a business event — lost inventory, lost revenue, potential health code violations, and customer-facing consequences. Hartzell’s approaches commercial refrigeration with that urgency in mind.

  • Fast response — commercial refrigeration calls are prioritized
  • Stocked service vehicles with common commercial refrigeration components
  • Accurate diagnosis before quoting — we find the root cause, not just the symptom
  • After-hours availability for critical failures

Service Area

Commercial refrigeration service throughout central Oklahoma: Kingfisher, Enid, Garfield County, Blaine County, Canadian County, Logan County, and the northwest OKC metro area. Call to confirm availability in your location.

Schedule Commercial Refrigeration Service

Fast response. Experienced technicians. Upfront pricing.

405-375-4822

Our Job Isn’t Done Until You’re Satisfied

  • Your system is running, tested, and set to your preferred temperature
  • You understand how to operate your new equipment or thermostat
  • The work area is clean — we take our trash with us
  • You have documentation for manufacturer warranty and any applicable rebates
  • Every question you have is answered before we leave the driveway

Written by Dave Hartzell — Owner, Hartzell’s Heat & Air. Master HVAC License #00115936. Serving central Oklahoma for 15+ years.



405-375-4822



Scroll to Top