How much does HVAC replacement cost?

HVAC replacement costs range from $5,500 to $24,000 depending on system type, efficiency rating, home size, and region. Central AC units average $6,500-$13,500 installed (R-454B 2026), heat pumps $8,000-$15,500, gas furnaces $4,500-$8,500, and full systems (AC + furnace) $11,500-$19,500. Woogoro adjusts benchmarks for your specific state, city, season, and system specs.

What SEER rating should I get?

The minimum SEER rating required by federal law is 14-15 depending on your region. For most homeowners, 16 SEER offers the best balance of efficiency and cost. 18+ SEER systems save more on energy bills but have higher upfront costs and longer payback periods (8-12 years). In hot climates like Texas or Arizona, higher SEER ratings pay back faster.

Do heat pumps still qualify for the federal tax credit in 2026?

No. The IRA Section 25C heat pump tax credit ($2,000 max) EXPIRED on December 31, 2025. As of 2026, there is no federal income tax credit for air-source heat pumps. Geothermal heat pumps still qualify for the 30% 25D credit with no cap through 2034. State and utility rebates through IRA HEAR and DSIRE programs are still active - check dsireusa.org for your area.

How do I know if my HVAC quote is fair?

Upload your HVAC quote to Woogoro for a free analysis. We check the total against state-level benchmarks adjusted for system type, efficiency, tonnage, brand tier, and seasonal demand. We also flag missing scope items, potential oversizing, unnecessary upsells, and warranty gaps. A fair quote should include equipment, labor, permits, disposal, and at least a 1-year labor warranty.

HVAC Cost Calculator 2026 — Free Estimate by City

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HVAC replacement cost by system type (2026)

National average ranges, fully installed. System size, efficiency rating (SEER/AFUE), and ductwork all impact cost.

System type	Total installed cost	Lifespan	Best for
Central AC (14–16 SEER)	$3,500–$7,500	12–17 yrs	Standard cooling, paired with furnace
Central AC (18+ SEER)	$5,500–$11,000	15–20 yrs	Energy savings, hot climates
Heat pump (15 SEER)	$5,000–$10,000	12–17 yrs	Mild climates, heating + cooling combo
Gas furnace (80% AFUE)	$3,000–$5,500	15–25 yrs	Cold climates, lowest cost
Gas furnace (96% AFUE)	$4,500–$8,500	15–25 yrs	Cold climates, energy efficient
Mini-split (single zone)	$3,500–$8,000	15–20 yrs	No-duct homes, room additions
Mini-split (multi-zone)	$8,000–$18,000	15–20 yrs	Whole-house no-duct retrofit
Geothermal	$20,000–$40,000	25+ yrs (loops 50+)	Long-term energy savings, high upfront

HVAC system replacement cost (whole house)

Most full HVAC replacements run $6,000–$14,000 — that's a complete swap of AC + furnace (or heat pump) for a typical 2,000 sq ft home. The system size you need is dictated by home square footage and climate: 2.5–3 tons for an average home in moderate climate, 3.5–5 tons in hot climates or large homes.

Central AC alone (replacing just the outdoor unit + indoor coil) runs $3,500–$8,500. Furnace alone runs $3,000–$8,500. Doing both at once usually saves 10–20% in labor vs separate visits.

AC unit cost vs heat pump cost

Heat pumps cost $1,000–$3,000 more upfront than central AC + furnace combos in most cases. The trade-off: heat pumps both cool AND heat with one system, eliminating gas furnace operating costs. In mild climates (Zone 3–4), heat pumps pay back in 6–9 years through lower utility bills.

In cold climates (Zone 6–7), heat pumps need backup heat (electric resistance or gas) for the coldest days, which complicates the math. Cold-climate heat pumps (Mitsubishi Hyper-Heat, Bosch IDS) work efficiently down to −15°F but cost $2,500–$5,000 more than standard models.

Federal tax credits and rebates for HVAC (2026)

The IRA Section 25C heat pump tax credit ($2,000 max) expired on December 31, 2025. As of 2026, there is no federal income tax credit for air-source heat pumps or central AC. Geothermal heat pumps still qualify for the 30% Section 25D credit (no cap) through 2034.

Many utilities still offer rebates of $200–$1,500 for high-efficiency systems through IRA HEAR and state programs. Check dsireusa.org for incentives in your area. Always ask your contractor to list every applicable rebate before signing.

HVAC cost factors

Home size + tonnage

Bigger homes need more tonnage. Rule of thumb: 1 ton per 600 sq ft (moderate climate), 500 sq ft (hot), 700 sq ft (mild). Oversizing wastes money + cycles too often.

SEER / AFUE rating

Higher efficiency costs more upfront but pays back in utility savings. Each SEER point above 14 typically adds $400–$800 to cost; payback varies by climate.

Ductwork condition

Existing ducts may need cleaning ($300–$600), repair ($500–$2,000), or full replacement ($3,000–$8,000). Leaky ducts can waste 20–30% of HVAC output.

System type

Heat pump vs AC+furnace adds $1,000–$3,000 upfront but consolidates heating + cooling. Mini-splits avoid ductwork entirely — great for older homes.

Install complexity

Tight crawlspace, attic install, or relocating units adds labor. Second-floor unit installs cost more due to refrigerant line runs.

Permits + inspection

$150–$500 in most cities. Required for refrigerant changes, electrical mods, and gas line work.

HVAC cost by city

Local pricing benchmarks across major US metros.

New York, NY Los Angeles, CA Chicago, IL Houston, TX Phoenix, AZ San Antonio, TX Dallas, TX Austin, TX Jacksonville, FL Fort Worth, TX Columbus, OH Charlotte, NC Indianapolis, IN Seattle, WA Denver, CO Atlanta, GA Miami, FL Tampa, FL Philadelphia, PA Nashville, TN Memphis, TN Las Vegas, NV Orlando, FL Sacramento, CA

Frequently asked questions about HVAC cost

How much does it cost to replace an HVAC system?

Full HVAC replacement (AC + furnace, or heat pump) for a typical 2,000 sq ft home runs $11,500–$19,500 installed (R-454B 2026 pricing). Higher-efficiency systems and 5-ton homes can hit $24,000+. Just AC: $6,500–$13,500. Just furnace: $4,500–$8,500.

How long does an HVAC system last?

Central AC: 12–17 years. Heat pump: 12–17 years. Gas furnace: 15–25 years. Boilers: 20–30 years. Annual maintenance significantly extends life. Coastal/high-humidity climates shorten outdoor unit life by 3–5 years.

What size HVAC system do I need?

Rule of thumb: 1 ton (12,000 BTU) per 500–700 sq ft of conditioned space. A 2,000 sq ft home typically needs 3–3.5 tons in moderate climates. Manual J load calculation (required by code in many states) gives a precise size based on insulation, windows, and orientation.

Should I replace AC and furnace at the same time?

If both are 10+ years old: usually yes. Matched systems run more efficiently, contractors offer 10–20% bundle discounts, and it's only one install disruption. If one is much newer than the other, replacing only the failed unit is fine.

Are there HVAC tax credits in 2026?

The federal 25C heat pump tax credit expired December 31, 2025. As of 2026, only geothermal heat pumps still qualify for a federal tax credit (30% via Section 25D, no cap, through 2034). Many utilities still offer $200–$1,500 rebates through state programs and IRA HEAR funds. Ask your contractor to itemize all applicable rebates before signing.