Oil Field HVAC & Specialized Services in Oklahoma

I’m Dave Hartzell, and my crew handles HVAC and specialized mechanical work for oil and gas operations across central Oklahoma. Based in Kingfisher, right in the heart of Oklahoma oil country, I understand the demands of field operations and get a truck rolling fast when equipment goes down.

Based in Kingfisher  ·  Fast Response  ·  Residential & Commercial Licensed  ·  405-375-4822


Oil Field HVAC Services

  • Field Office Heating & CoolingInstallation, repair, and maintenance for portable and permanent field offices and modular buildings
  • Equipment Building Climate ControlKeeping control rooms, compressor buildings, and instrumentation buildings at safe operating temperatures
  • Crew Quarter HVACComfortable living and working environments for field crews
  • Package Unit SystemsSelf-contained heating and cooling units for rapid deployment on oil field sites
  • Mini-Split SystemsDuctless heating and cooling for small buildings, control rooms, and equipment enclosures
  • Ventilation SystemsProper airflow and exhaust for enclosed spaces requiring safety compliance
  • Emergency ServiceRapid response for HVAC failures that affect operations or crew comfort

Specialized Equipment & Fabrication

  • Custom Sheet Metal & DuctworkFabricated in-house for non-standard configurations common in oil field applications
  • Equipment InstallationProfessional installation of heating, cooling, and ventilation systems on active sites
  • Preventive Maintenance ProgramsScheduled service intervals to prevent costly breakdowns and unplanned downtime
  • System Retrofits & UpgradesReplacing aging or inefficient systems with modern, more reliable equipment
  • Controls & Thermostat WorkProgrammable and remote-access controls for unmanned or remotely-monitored facilities

Hartzell's Heat & Air van at Marathon Oil natural gas processing facility Oklahoma
Marathon Oil, Hartzell’s on site at a natural gas processing facility. Industrial HVAC service in central Oklahoma oil country.
Hartzell's service van at industrial natural gas processing facility with crane
Full-scale industrial site, crane operations, staging equipment, Hartzell’s ready to work. This is not residential territory.
Hartzell's technician in hard hat servicing liquid refrigerant cooling connections at industrial facility
Hard hat required, connections properly torqued, technician servicing liquid refrigerant cooling at an industrial gas facility.
Parker liquid refrigerant cooling units installed at Oklahoma natural gas processing facility
Parker liquid cooling units installed and commissioned, industrial-grade equipment that keeps the process running in Oklahoma heat.

Why Oil Field Operations Choose Hartzell’s

Local & Fast

Based in Kingfisher, right in the middle of central Oklahoma oil and gas country. I know the roads and my crew responds fast.

45 years Experience

In business 15+ years (opened ~2011) with 45 years of HVAC experience, I’ve worked alongside Oklahoma’s energy industry my whole career. Oil field conditions aren’t new to me.

Master Licensed

Dave Hartzell holds a Master HVAC License. All work is done to code by licensed, experienced technicians.

Honest Pricing

Upfront quotes before work begins. No surprise invoices after the job is done.


Service Area

I serve oil and gas operations throughout central Oklahoma including Kingfisher County, Blaine County, Garfield County, Major County, Canadian County, and surrounding areas within a 60-mile radius of Kingfisher.

Key communities served: Kingfisher, Enid, Watonga, Fairview, Clinton, Weatherford, El Reno, and surrounding oil field areas.


Frequently Asked Questions

Do you work on active well sites?
Yes. My crew is familiar with oil field site safety requirements and coordinates with your operations team for safe access and work execution.

Can you set up HVAC for a new portable or modular field office?
Yes. My crew handles complete HVAC setup for portable buildings, including equipment selection, installation, and startup. I can recommend the right system for your specific building size and usage.

Do you offer preventive maintenance contracts for oil field facilities?
Yes. I offer scheduled maintenance programs tailored to your facility count and service intervals. Preventive maintenance reduces emergency calls and keeps equipment running through Oklahoma’s extreme weather seasons.

Frequently Asked Questions

Do you work on active oil well sites in Oklahoma?

Yes. My crew is familiar with oil field site safety requirements and coordinates with your operations team for safe access and work execution.

Can you set up HVAC for a new portable or modular field office?

Yes. My crew handles complete HVAC setup for portable buildings including equipment selection, installation, and startup.

Do you offer preventive maintenance contracts for oil field facilities?

Yes. I offer scheduled maintenance programs tailored to your facility count and service intervals to reduce emergency calls and keep equipment running.

Need Oil Field HVAC Service?

Based in Kingfisher. Fast response throughout central Oklahoma.

405-375-4822



405-375-4822



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