15+ years • 6,500+ jobs completed • 1,500+ Oklahoma homes served

Hartzell’s vs Airco Service: HVAC Comparison Oklahoma

Got a quote from Airco and shopping around? Here is how I am different. I am a one-person Master HVAC shop in Kingfisher. Airco is a large multi-location operation. Neither is wrong, but the experience is very different.

4.8 stars / 300+ Google reviews. Master HVAC. NATE Certified. IGSHPA Accredited.

Side-by-Side Comparison

Factor	Hartzell’s Heat & Air	Airco Service
Reviews	4.8 stars, 300+ Google reviews	2.4 stars, 178 Yelp reviews
Owner-operator	Yes, Dave Hartzell, Master HVAC license	No, multi-location operation
Checking another company’s quote	Free on replacement quotes. Checking a repair diagnosis is my regular $210 service call, and the $210 comes off only if you buy a new system from that visit.	Not advertised
Pricing transparency	$99 dispatch and $111 diagnostic published	Custom quote only
Service area	Kingfisher and 7 counties daily, geothermal statewide	OKC metro
Diagnostic policy	$111 diagnostic, part of the $210 flat repair-call price. I give you a written repair estimate before repair work starts.	Varies by call
Tech credentials	NATE, IGSHPA, Mitsubishi Diamond, Trane TCS, BBB A+	Varies by tech

Sources: Google Business Profile for Hartzell’s Heat & Air (4.8 stars, 300+ reviews as of May 2026). Yelp public listing for Airco Service Inc (2.4 stars, 178 reviews as of May 2026). Comparison reflects publicly available data only.

Why Customers Switch

Direct access to the tech who does the work

The most common thing I hear from people who came to me after a large company is they could not get answers between visits. With me, the phone number on the truck is my number. If something is wrong after a job, I am the one who comes back, not a different tech reading notes.

Pricing posted before the truck rolls

I publish $99 dispatch and $111 diagnostic on the website. You know what the visit costs before I knock. Larger companies often quote on site after the tech looks, which is fine, but some people want the number first.

Another company’s replacement quote or repair diagnosis

If another company quoted you a full system replacement, I will look at it free. If they diagnosed a compressor or a coil and quoted that repair, checking it is my regular service call, $210, and the $210 comes off only if you buy a new system from that visit. About one in four of these checks I do, the original diagnosis was correct and I tell people so. The rest of the time I find something cheaper or a different fix.

Frequently Asked Questions

Is Hartzell’s smaller than Airco Service?

Yes. I am a one-person Master HVAC shop in Kingfisher. Airco is a large multi-location company. The trade-off is direct access: when you call my number, you get me, not a dispatcher.

Do you service the OKC metro like Airco does?

I cover 7 counties around Kingfisher, which reaches the north and west sides of the OKC metro including Edmond, Yukon, Piedmont, El Reno, and Okarche. For southside OKC, Airco may be closer.

Why are Airco’s Yelp reviews so much lower than your Google reviews?

I will not speak to another company’s reviews. My number is 4.8 stars across 300+ Google reviews, all public and verifiable.

How much does a diagnostic cost at Hartzell’s vs Airco?

I charge $99 dispatch plus $111 diagnostic, published on my site. $111 diagnostic, part of the $210 flat repair-call price. I give you a written repair estimate before repair work starts. Airco does not publish pricing publicly.

Can you check an Airco quote?

Yes. If you have their replacement quote, my estimate is free. If they diagnosed a repair and you want me to check it, that is my regular service call, $210, and the $210 comes off only if you buy a new system from that visit. Weekends and after hours it is $309 and geothermal is $348 flat, and neither of those is credited. Bring the diagnosis and the price, I will tell you honestly if it makes sense.

Second Opinion on a Replacement Quote: send me the Airco quote, I review it free
HVAC Rebuild vs Replace: a rebuild can save $10K+ over the Airco replacement number
Hartzell vs Drabek-Hill: shopping multiple quotes, here is the Drabek comparison
AC repair in Kingfisher: sometimes the repair was the right call all along

Get a Second Opinion on a Replacement Quote

Already got a quote? Bring it to me. I will look at the diagnosis, the equipment match, and the price. No pressure, no high-pressure sales.

Call 405-375-4822

Hartzell’s Heat & Air, 602 S Main St, Kingfisher OK. 4.8 stars / 300+ Google reviews.

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