What is the diagnostic fee for HVAC repair in Kingfisher Oklahoma?

Hartzell’s Heat & Air charges a $111 diagnostic fee, which is credited toward your repair or replacement if you approve the work within 14 days. A $99 dispatch fee applies to every service visit. Maintenance plan members: dispatch is waived on your included tune-up visit(s) only — repair and emergency calls still pay $99.

Do you offer free estimates on new HVAC systems?

Yes. Free estimates are available for all new system installations — heat pumps, geothermal, central air, and furnaces. Call 405-375-4822.

HVAC Service Pricing in Oklahoma | Hartzell’s Heat & Air

Hartzell’s believes in upfront, honest pricing — you know what you’re paying before any work starts. No bait-and-switch. No surprise charges at the end. Here’s exactly how our pricing works.

Questions? Call or text 405-375-4822 · Upfront pricing on every job · No hidden fees


Service Call & Diagnostic Pricing

Here’s how a standard service call works at Hartzell’s:

$99

Dispatch Fee

Applies to every service visit. Covers travel and getting a qualified technician to your door.

Dispatch is waived on your included tune-up visit(s). Repair and emergency calls: $99 dispatch applies.

$111

Diagnostic Fee

Paid to identify the root cause of your system’s problem — properly, not by guessing.

Credited toward your repair or replacement if you approve an estimate within 14 days. If you decide not to move forward, it covers the diagnosis.

$229

Tune-Up

A thorough inspection and cleaning of your heating or cooling system — not a 15-minute checklist.

Dave’s 360 Plan members receive discounts on tune-ups.

Example: You call us for a heating problem. We charge $99 dispatch + $111 diagnostic = $210 total to come out and diagnose. We find the problem and give you a repair quote of $350. You approve it — the $111 diagnostic comes off: you pay $99 + ($350 – $111) = $338 total. The diagnosis didn’t cost you extra because you chose to fix it.


Maintenance Plans

A maintenance plan is the best way to lower your long-term HVAC costs. Regular maintenance prevents breakdowns, extends equipment life, and keeps your warranty valid.

Tune-Up Plan

$138/yr

  • 1 visit per year
  • No dispatch fee on included visit
  • Full system inspection & safety checks
  • Written condition report

View Tune-Up Plan ›

★ Preferred Plan

Basic Plan

$189/yr

  • 2 visits per year
  • No dispatch fee on included visits
  • Full system inspection & safety checks
  • Written condition report each visit
  • 10% off all repairs

View Basic Plan ›

Dave’s 360 Plan

$360/yr

  • 2 visits per year
  • No dispatch fee on included visits
  • Full system inspection & safety checks
  • Written condition report each visit
  • 20% off all repairs
  • Priority emergency scheduling

View Dave’s 360 ›

Geo and water heater plans also available — view all 8 plans →


Old HVAC system before replacement Oklahoma home
Before — an aging system working too hard. When repair costs approach 50% of replacement cost, the math changes.
New Trane heat pump system installed Oklahoma home — clean professional installation
After — new Trane system installed, sized right, commissioned. Priced honestly with no surprises.
Trane Comfort Specialist dealer badge Hartzells

Trane Comfort Specialist — factory-trained, price book maintained. You get an itemized estimate, not a number pulled from the air.

What Does a New HVAC System Cost in Central Oklahoma?

These are honest installed cost ranges — equipment + labor + materials — based on typical central Oklahoma homes. Every home is different; Hartzell’s provides exact upfront quotes before any work begins.

System Type Typical Cost Range Notes
Central AC + Gas Furnace (standard efficiency) $7,500 – $12,500 Most common replacement; 14–16 SEER2
Central AC + Gas Furnace (high efficiency) $11,000 – $17,000 96%+ AFUE furnace; maximum efficiency
Central Air Source Heat Pump (standard) $7,500 – $12,500 Replaces both AC and heating; single system
Central Heat Pump (high efficiency) $11,000 – $16,000 16+ SEER2 / 9.5+ HSPF2; highest efficiency
Ductless Mini-Split (single zone) $4,000 – $8,500 No ductwork needed; Mitsubishi Diamond Dealer
Ductless Multi-Zone (2–4 zones) $8,500 – $18,000 Ideal for room additions, older homes
Geothermal Heat Pump System $18,000 – $35,000 Federal 25D credit expired Dec 31, 2025; OG&E rebate: $1,000/ton, co-op rebates available
Gas Water Heater — 50-gal tank (Bradford White) $1,100 – $2,200 Bradford White authorized dealer; includes haul-away of old unit
Tankless Gas Water Heater (Navien, Rinnai) $3,000 – $6,500 Whole-home on-demand; dedicated gas line often required; Bradford White Powerfly available

Prices vary based on home size, existing ductwork condition, accessibility, and equipment selected. Hartzell’s provides exact quotes before any work begins — no surprise charges. Utility rebate information is general guidance; consult your utility provider for current eligibility.


Indoor Air Quality & Protection Add-Ons

These are installed prices typical for central Oklahoma. Most add-ons take under an hour and can be done same-day during any service or maintenance visit. Final pricing quoted on-site after system evaluation.

Product Installed Price What It Does
HVAC surge protector
Intermatic AG3000
$150 – $350 Protects control boards and ECM motors from grid voltage spikes. Installs at the disconnect in 15 min. Control board replacement alone: $450–$1,500.
Condensate float switch
RectorSeal Safe-T-Switch
$150 – $350 Shuts the system off before a clogged condensate drain overflows. Prevents ceiling and flooring water damage. 15–30 min install on any service call.
4–5 in. media filter cabinet
Aprilaire, Honeywell — MERV 11–16
$400 – $900 Replaces standard 1-inch filter slot. Far better filtration, less frequent changes, no airflow restriction. Annual filters $40–$70. 5-year warranty.
UV coil purifier
Fresh-Aire, Aprilaire UVC
$250 – $600 UV lamp inside the air handler irradiates the evaporator coil, controlling biological growth. Annual lamp replacement $30–$80. Fast add-on during tune-up.
Air Scrubber by Aerus
In-duct UV / ActivePure
$900 – $1,500 Installs in supply or return plenum. ActivePure cell treats air as it circulates. Cell replacement every 2 years ($150–$300). Covers up to 3,000 sq ft.
iWave-R bipolar ionizer
Nu-Calgon
$695 – $1,200 Self-cleaning needlepoint ionizer, no replacement parts. Handles up to 6 tons / 2,400 CFM. Good option for homes with pets or persistent odors.
Whole-home dehumidifier
Aprilaire 1850
$1,800 – $3,500 Standalone ducted unit maintains indoor RH 45–55% independent of AC. Dedicated 240V circuit usually required. Aprilaire 1850 — 5-year warranty.
ERV (Energy Recovery Ventilator)
Fantech, Broan, Honeywell
$1,500 – $3,500 Brings in fresh outdoor air while recovering energy from the exhaust stream. Correct choice for Oklahoma’s humid climate (ERV, not HRV). Best ROI alongside new construction or system replacement.

Installed estimates for central Oklahoma. Final price quoted after system evaluation. Electrical work (dehumidifiers) billed separately if a licensed electrician is required. Full IAQ details →


Why Dispatch and Diagnostic Are Separate Fees

Some HVAC companies advertise a single “service fee” that seems low — then build their diagnostic profit into labor rates or parts markups you don’t see until the invoice arrives. Hartzell’s separates these because they are genuinely different services:

  • Dispatch fee ($99) — Pays for travel, fuel, and the cost of keeping a fully stocked service truck on the road. This is a real cost that exists whether or not the visit takes 10 minutes or 3 hours.
  • Diagnostic fee ($111) — Pays for the technician’s expertise and time to find the actual problem. A proper diagnosis takes time and skill. Dave has been diagnosing HVAC systems for 15+ years — he finds the real cause, not just the symptom. And when you approve the repair, you get it back.

The result: transparent pricing where you know what you’re paying and why. No buried fees. No inflated labor rates to hide a “free diagnostic.” Just honest service.


Financing Options

A new HVAC system is a major purchase. Hartzell’s offers financing through Synchrony, Wells Fargo Home Projects, and Wisetack — giving you multiple options and better approval chances. Ask about current promotional terms when you receive your estimate. Learn more about financing →

💵 Cash / Check Courtesy Discount — 3% Off

3% off when you pay cash or check — on repairs over $2,000. On a $3,000 job that’s $90 back. On a $5,000 job it’s $150. Just ask before I write the invoice.

A couple of things to know: The discount applies to the repair portion of the invoice only — the $99 dispatch fee and $111 diagnostic fee are not included. Must be paid in full at time of service. Cash or personal/business check only (no money orders).


Discounts I Offer

I’ve never been big on gimmicks, but I do think certain customers deserve a break — folks who’ve been loyal, who referred a neighbor, or who’ve served their community. Here’s what I currently offer:

Discount Amount Who Qualifies
Annual Maintenance Loyalty 5% off repairs Customers who’ve kept their annual maintenance on schedule, year over year. You take care of your system, I’ll take care of you.
Welcome Back $50 off Past Hartzell’s customers returning after 12 or more months away. Life happens — I’m glad you’re back.
Neighbor Referral $50 off New customers referred by an existing Hartzell’s customer. Word of mouth means more to me than any ad — this is my way of saying thank you.
Veteran / First Responder 5% off repairs Active and retired military, law enforcement, fire, and EMTs. You’ve done enough for this community — the least I can do is this.
Senior Courtesy 5% off repairs Customers age 65 and older. Just mention it when you call — no paperwork required.
Decision Day Discount 5% off Say yes to the repair on the day of diagnosis and I’ll knock 5% off the repair total.
Multi-Repair Discount 5% off When we find and fix more than one issue on the same visit, 5% off the total repair.

A few notes: All discounts apply to the repair portion of the invoice only — the $99 dispatch fee and $111 diagnostic fee are not included. Discounts cannot be combined; if more than one applies, I’ll give you the best one. Ask when you call or when I arrive — just mention it before the invoice is written up.


Common Pricing Questions

Do I have to pay the dispatch fee if the technician can’t fix the problem?

Yes — the dispatch fee applies when we arrive on site. The diagnostic fee also applies to identify what’s wrong. However, if you approve a repair and we find during that repair that it cannot be completed (extremely rare), we work through it honestly. We’ll always tell you upfront if a job is beyond our scope or if parts aren’t available before charging for work not done.

Are there additional fees for after-hours or weekend service?

Emergency after-hours calls may have additional fees. We will always tell you what those fees are before dispatching a technician — no surprise charges. Call 405-375-4822 and we’ll give you upfront pricing before any work begins.

Do you charge for estimates on new system installations?

No — estimates for new system installations and replacements are free. Call 405-375-4822 or contact us online to schedule your free estimate.

Can I get a ballpark price over the phone?

For repairs, we need to see the system before we can quote — that’s what the diagnostic fee pays for. For new systems, we can give you a general range over the phone based on your home’s square footage and existing setup, then schedule a free in-home visit to give you an exact quote. Call 405-375-4822.


Get an Upfront Quote

No hidden fees. No inflated estimates. Dave’s been doing this honestly in central Oklahoma for 15+ years.

Call 405-375-4822
Request a Free Estimate


Maintenance Plan Options

All plans include auto-scheduled tune-ups, dispatch waived on included tune-up visits ($99 applies to repair/emergency calls), Trane Home thermostat reporting, and your complete service history on file. No paperwork. No reminders. We handle it.

Tune-Up
$138/yr
  • ✓ 1 visit/year
  • ✓ Dispatch waived on included visit(s)
  • ✓ Auto-scheduled visits
  • ✓ Trane Home reporting

View Plan Details →

MOST POPULAR

Basic
$189/yr
  • ✓ 2 visits/year
  • ✓ Dispatch waived on included visit(s)
  • ✓ 10% off repairs
  • ✓ Auto-scheduled visits
  • ✓ Trane Home reporting

View Plan Details →

Dave’s 360
$360/yr
  • ✓ 2 visits/year
  • ✓ Dispatch waived on included visit(s)
  • ✓ 15% off + priority
  • ✓ Auto-scheduled visits
  • ✓ Trane Home reporting

View Plan Details →



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