Geothermal Contractor in Oklahoma

I have put more than 300 geothermal systems in the ground and under service across Oklahoma, for over 250 families. Some of those homes run four or five geothermal units under one roof. I designed those loops, I sized those systems, and I still service every one of them. That is the part most people cannot say.

300+
geothermal systems I maintain across the state
250+
geothermal families, some running four or five units
47 years
in the trade. I started at sixteen working for my dad
IGSHPA
accredited, plus ClimateMaster GeoElite and WaterFurnace

4.8 stars, 300+ Google reviews. 15+ years in business in Kingfisher.

Geothermal Comfort Plan: $0 upfront

If the upfront cost is what stands between you and geothermal, there is a lease path. I am an Approved Palmetto Partner, and the Geothermal Comfort Plan is a 10-year lease: $0 upfront and 120 even monthly payments.

One payment covers the system, the ground loop and the install, and the maintenance, filters, repairs and service labor ride inside it. I stay your service company for the whole term.

  • Approved example: a $25,000 system is $225 a month.
  • Approved example: a $40,000 system is $332 a month.

It is a lease, not a purchase. Palmetto owns the system during the term, and there is an end-of-term buyout, so $0 upfront does not mean you own it at the end. It is for residential geothermal only, and not for projects over $200,000.

Disclaimer: Labor, filters, and preventative maintenance are all subject to terms and limitations included in the contract. Inflation-Proof Protection is based on expected inflation costs on services covered under the contract for the ten-year term. Interest Paid is estimated on an annual percentage rate expressed as a yearly percentage and does not imply that the Monthly Payment is exclusive of lease costs related to the geothermal system.

See how the Geothermal Comfort Plan works

Call 405-375-4822 and I will walk you through it. Want the month-by-month picture? Read what geothermal costs per month.

What a real geothermal job looks like

Most contractors who say they do geothermal mean they will install a box somebody else specified. The loop is where these systems succeed or fail, and the loop is the part you cannot see once the dirt goes back. Here is what the work actually looks like.

Hartzell's truck on site, day one of a geothermal slinky loop install, Kingfisher County, Oklahoma
Day one in Kingfisher County. The truck shows up before anything comes out of the ground.
Chain trencher cutting a geothermal slinky loop trench through hard shale, Kingfisher County, Oklahoma
Chain trencher cutting a slinky loop trench through hard shale.
Several parallel geothermal slinky loop trenches cut in red Oklahoma dirt
Parallel slinky trenches open in red dirt. Loop length is what makes the system work.
Work table where the crew forms geothermal slinky loop coils on site, Kingfisher County, Oklahoma
The table where my crew forms the slinky loops before they go in the ground.
Geothermal loop inlets at the building on day one of a slinky loop install
Loop inlets coming into the building.
Geothermal drilling equipment and vertical bore site work.
Vertical bore work. My OWRB licensed driller does the drilling, I design the loop.
Geothermal flow center and loop pumps mounted beside the indoor unit
Flow center and loop pumps. This is the heart of a geothermal system.
Compressor label, geothermal heating repair in Mustang, OK
A compressor label on a geothermal service call in Mustang.

That is the work. How you pay for it is a separate decision, and I will lay out every path: buy it outright, finance it, or take the Geothermal Comfort Plan lease with nothing upfront, laid out near the top of this page. See every way to pay for geothermal or the Geothermal Comfort Plan.

What I do, and what I do not do

I design the loop, I size the system, and I stand behind the install. I offer water well drilling and geothermal bore drilling, and the drilling itself is done by my OWRB licensed driller. I do not drill it myself and I will not tell you otherwise.

I work on ClimateMaster, WaterFurnace and GeoStar, and I am a dealer for all three. I am IGSHPA accredited, which matters because loop sizing is not something you learn from a box.

Where I go for geothermal

For everyday air conditioning, heating and water heater work I run seven counties daily: Kingfisher, Canadian, Oklahoma, Garfield, Major, Logan and Blaine.

Geothermal is the exception. For geothermal install, replacement, repair, tune up and diagnostic work I travel across almost the entire state of Oklahoma, depending on the customer and the project. If you are sitting on a geothermal system somewhere else in Oklahoma and nobody will come look at it, call me at 405-375-4822.

That is not a slogan. I have run 700+ geothermal service calls in 40+ Oklahoma towns. The furthest is Broken Bow, about 250 miles from my shop in Kingfisher. Here is where the geothermal work has actually taken me:

Kingfisher · Okarche · Cashion · Edmond · Crescent · Hennessey · Piedmont · Watonga · Omega · Loyal · Okeene · Marshall · Guthrie · Geary · Dover · Thomas · Yukon · Fairview · Douglas · Canton · El Reno · Enid · Union City · Oklahoma City · Greenfield · Broken Bow · Macomb · Garber · Chickasha · Hitchcock · Calumet · Tuttle · Kingfisher,

Towns with completed geothermal work on the books. Customer names and addresses stay private.

What a geothermal diagnostic costs

A geothermal diagnostic is $348 flat, weekday or after hours, same number either way. That is a full performance audit: loop pressure, refrigerant charge, desuperheater, controls and heat exchanger, done by an IGSHPA accredited technician, with a written report and a quote before I leave. A geothermal tune up is also $348. Two different products, same price on purpose, so you can hold onto one number.

You pay the $348 up front and you get the report whether or not you hire me for the repair.

Common questions

Who works on geothermal heat pumps near me in Oklahoma?

I do, and I travel most of the state for geothermal. I maintain more than 300 geothermal systems across Oklahoma. Call 405-375-4822 and tell me your town, your brand and what the system is doing.

How much does a geothermal repair diagnostic cost in Oklahoma?

$348 flat, weekday or after hours. It covers loop pressure, refrigerant charge, desuperheater, controls and heat exchanger, with a written report and a quote before I leave.

Do you work on geothermal systems somebody else installed?

Yes. Most of the geothermal systems I service were not installed by me. Bring me the brand and the model and I will tell you honestly what I can do with it.

Do you drill the geothermal bores yourself?

No. I offer geothermal bore drilling and water well drilling, and the drilling is done by my OWRB licensed driller. I design the loop, size the system and stand behind the install. On acreage with a well already in the ground, see farm and ranch geothermal.

Which geothermal brands do you service in Oklahoma?

ClimateMaster, WaterFurnace and GeoStar, and I am a dealer for all three. I am ClimateMaster GeoElite and IGSHPA accredited.

Can one house run more than one geothermal unit?

Yes, and a good number of mine do. I service homes running two, three, four and five geothermal units under one roof. Multiple units are normal on bigger houses and on shops.

Got a geothermal system and nobody who will touch it?

Tell me your town, your brand and what it is doing. I travel most of Oklahoma for geothermal.

Call 405-375-4822 or book online.

Who is doing the work

Dave Hartzell, owner and working technician. Hartzell’s Heat & Air, 602 S Main St, Kingfisher, Oklahoma 73750.

Trade experience 47 years. I started at sixteen and a half working for my dad doing electrical and HVAC/R. First licence, Woodward, 1980.

Company 15+ years in business in Kingfisher.

Licensing and accreditation Oklahoma Master HVAC licence. NATE certified. IGSHPA accredited for geothermal.

Geothermal dealer ClimateMaster GeoElite, WaterFurnace, GeoStar (commercial and residential).

Also Mitsubishi Diamond Dealer, Trane TCS SELECT, Amana Brand Advantage.

Insured workman’s compensation and general liability through Federated Insurance.

Drilling geothermal bores and water wells are drilled by my OWRB licensed driller. I design the loop and size the system.

BBB A+ rated, 11 years.


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