Commercial HVAC · Logan County & Guthrie, Oklahoma
Commercial HVAC service in Logan County and Guthrie, Oklahoma
4.8 stars, 300+ Google reviews
Logan County borders my home county of Kingfisher, and Guthrie is inside my daily
seven-county service area, not a special trip out. I am Dave Hartzell, and I service
commercial HVAC, rooftop equipment and refrigeration for restaurants, retail, offices, schools,
municipal buildings and shops across Logan County, including Guthrie, Crescent and Langston.
Licensed Oklahoma Mechanical Contractor
NATE Certified
HVAC/R since 1980
Do you service commercial HVAC in Guthrie, Oklahoma?
Hartzell’s Heat & Air services commercial HVAC, rooftop equipment and
refrigeration in Guthrie and across Logan County every day, not as an add-on trip. In
September 2026 I handled a real commercial emergency in Guthrie on a brand new restaurant’s
opening day. Read
the full story of that call, including what I found and how I kept the building open.
What kinds of commercial buildings do you service in Logan County?
Hartzell’s Heat & Air services restaurants, retail strips, medical and dental
offices, schools, municipal buildings, churches and light industrial and storage buildings
throughout Logan County. Rooftop package units, split systems, heat pumps and
commercial refrigeration are all part of that work.
How much does a commercial HVAC diagnostic cost in Guthrie?
Hartzell’s Heat & Air charges a flat $389 commercial diagnostic in Guthrie and
the rest of Logan County, the same as everywhere else in my service area, day or night, for
light commercial equipment up to 15 tons. There is no extra charge for Logan County
being a few extra minutes down the road from Kingfisher. Equipment larger than 15 tons is sized
and quoted by the technician on site.
Is Guthrie inside your daily service area or a special trip?
Guthrie is inside Hartzell’s Heat & Air’s daily seven-county service area, not a
special trip. Logan County borders Kingfisher County directly, so a commercial call in
Guthrie is a normal day, the same as a call in Kingfisher itself. That is also why response on
a real Logan County emergency has been measured in hours, not days.
Do you handle emergency commercial calls in Guthrie?
Hartzell’s Heat & Air takes emergency commercial calls in Guthrie and the rest
of Logan County at any hour. For what qualifies as a commercial emergency and what it
costs after hours, see my
emergency commercial
HVAC page.
Do you also service homes in Logan County?
Hartzell’s Heat & Air services homes across Logan County too, and I keep that
work on its own page separate from commercial service. If you are looking for
residential AC, furnace or heat pump repair in Guthrie, Crescent or Langston, see my
residential HVAC in Logan
County page instead of this one.
enough that it does not feel like a special trip either way.
Questions about commercial HVAC in Logan County
How much does a commercial AC diagnostic cost in Guthrie Oklahoma?
$389 flat on light commercial equipment up to 15 tons, day or night, no
after-hours uplift. Bigger equipment gets sized by the tech on site.
Is Logan County one of Hartzell’s daily service counties?
Yes. Logan County is one of the seven counties Hartzell’s Heat & Air
runs every day, along with Kingfisher, Canadian, Oklahoma, Garfield, Major and Blaine.
Do you work on commercial rooftop units installed by someone else?
Yes, regularly, including brand new equipment under manufacturer
warranty. The Guthrie case study is a real example of exactly that.
What towns in Logan County do you service?
Guthrie, Crescent and Langston are all inside my daily seven-county
service area, along with the rest of Logan County.
For commercial pricing, response times and what I service across central Oklahoma, see my
commercial HVAC page.
Commercial building in Guthrie or Logan County?
Commercial diagnostic $389 flat, day or night, up to 15 tons.
Hartzell’s Heat & Air · 602 S Main St, Kingfisher OK 73750