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Full HVAC System Replacement Cost in Oklahoma

Typical range: $8,000-$18,000 · Most common: $11,000-$15,000

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Replacing both your AC and furnace at the same time typically runs $8,000-$18,000 in Oklahoma. The combined install costs less than two separate jobs (one trip, one tear-out, shared labor) and lets you match equipment for best performance. Here is the breakdown.

Detailed Pricing Breakdown

Service / PartCost Range
Basic combo: 14 SEER2 AC + 80% AFUE furnace
Entry-level matched system. Good budget option.		$8,000-$10,500
Mid-tier combo: 16 SEER2 AC + 95% AFUE furnace
Best value for most Oklahoma homes — meaningful efficiency at reasonable cost.		$11,000-$14,000
Premium combo: 18+ SEER2 + 96%+ variable-speed
Best comfort, lowest energy bills, longest expected lifespan.		$14,500-$18,000
Heat pump alternative (vs AC + furnace)
Single dual-purpose system. Federal tax credit up to $2,000 available.		$8,000-$14,000
Dual-fuel hybrid (heat pump + gas furnace backup)
Best of both worlds for Oklahoma climate.		$11,500-$16,500
Add: ductwork replacement
If existing ductwork is undersized, leaky, or near end of life.		+$3,500-$7,000
Add: new thermostat (smart)
Nest or Ecobee paired with new equipment.		+$200-$450
Add: zoning system (multi-thermostat)
Different temperatures in different parts of the home.		+$2,500-$5,500

All prices are for the OKC metro area. Actual quote may vary based on your specific situation.

What Pushes Cost Up

  • Higher efficiency tier on either component
  • Variable-speed equipment
  • Premium brand (Trane, Carrier)
  • Larger BTU/tonnage for bigger homes
  • Concurrent ductwork or zoning work
  • Difficult equipment access

What Lowers Cost

  • Combined install savings vs separate jobs
  • Mid-tier efficiency selection
  • Standard single-stage operation
  • Existing ductwork adequate
  • Pre-season scheduling
  • Federal tax credits if heat pump

Why Get a Free In-Home Estimate

The ranges on this page are honest, but every home is different. A free in-home estimate gives you a firm quote based on your actual equipment, home size, ductwork condition, and electrical setup. We perform proper load calculations rather than ballpark guesses, and we give you 2-3 options at different price points so you can choose what fits your budget.

No pressure, no upselling, no surprise add-ons after the work starts. ARP Heat And Air is licensed (OK CIB #00125054), insured, and

Pricing by Scenario

Typical pricing for common OKC-metro situations. Exact pricing depends on your specific home and system.

ScenarioTypical Range
AC-only replacement
3-ton 15 SEER2 system on existing furnace		 $5,500 – $7,500
Furnace-only replacement
95%+ AFUE two-stage gas furnace		 $4,500 – $6,000
Full AC + furnace combo
Matched 3-ton AC and 80k BTU 95% furnace		 $7,500 – $10,500
Heat pump system replacement
3-ton heat pump + air handler		 $7,500 – $11,000
High-efficiency variable-speed combo
Premium tier — Carrier Infinity / Trane XV		 $12,000 – $18,000
Full HVAC + new ductwork
Complete system + duct replacement		 $14,000 – $22,000

Frequently Asked Questions

Should I replace AC and furnace together?
If both are 12+ years old, usually yes. Matched systems run more efficiently, carry matched warranties, and you save on labor by doing both installs in one day. If only one is failing and the other is under 10 years, replace one at a time.
How long will my new system last?
Quality residential systems: 15-20 years for AC, 20-25 years for gas furnaces, 10-15 years for heat pumps. Proper sizing, annual maintenance, and good installation quality all push toward the top of those ranges.
What's included in a typical HVAC replacement?
Our installs include: equipment removal and disposal, refrigerant recovery (EPA-compliant), new equipment installation, line-set inspection, electrical connections, thermostat, commissioning (startup test + temperature split verification), and rebate paperwork.
Do I need permits for HVAC replacement?
Yes — Oklahoma requires permits for most HVAC replacements. We pull permits as part of every install and handle the inspection process. Jobs done without permits can create insurance and resale issues.
What financing is available for HVAC replacement?
0% APR 12-18 month promos, and 60-120 month fixed-rate financing with monthly payments as low as $62-$175 on a $5,500 system. See our financing page for full details.

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