Typical total cost to replace a gas furnace and central air conditioner in the U.S. ranges widely; buyers usually pay between $5,000 and $12,000 depending on size, efficiency, and installation difficulty. This article breaks down the cost of new gas furnace and AC unit pricing, per-unit rates, and the main drivers that change quotes.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Full furnace + AC replacement (single-family home) | $5,000 | $8,500 | $12,500 | Assumptions: 2-3 ton AC, 80k-95k BTU furnace, standard duct system, suburban labor rates. |
| Furnace only | $1,800 | $3,500 | $6,000 | Includes equipment and installation; higher for modulating or 98% AFUE units. |
| AC condensing unit only | $2,000 | $4,500 | $8,000 | Per unit; higher for 16-20 SEER and two-stage compressors. |
Total Replacement Price for Gas Furnace Plus AC Condenser
Most homeowners pay $5,000-$12,500 for a full gas furnace and AC unit replacement. This assumes a typical single-family 1,200–2,500 sq ft home with existing ductwork in good condition.
Typical totals by scenario: basic replacement (2-ton AC, 80% AFUE furnace) $5,000-$7,500; mid-range (2.5–3 ton, 14-16 SEER, 90% AFUE) $7,000-$10,000; premium (3–4 ton, 17-20 SEER, 95-98% AFUE, multi-stage) $10,000-$15,000.
Assumptions: Midwest labor rates, standard materials, normal access.
Materials, Labor and Equipment Costs in a Combined HVAC Quote
Breakdown of a standard combined quote usually shows equipment as ~45-60% and labor and ancillary costs the rest.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $2,000-$6,000 | $1,200-$3,500 | $2,000-$6,000 | $50-$400 | $100-$600 |
Example composition: a $9,000 job might be $4,000 equipment (furnace+condensor), $2,200 labor (12-18 hours @ $75-$125 per hour), $300 permits, $500 disposal, $2,000 materials/accessories (line sets, thermostats, pads).
How Unit Size, SEER Rating, and Furnace AFUE Change the Final Quote
Key specification changes shift price in predictable steps: every 0.5–1 ton increase typically adds $300-$800; moving from 13 SEER to 16 SEER adds $800-$2,000; upgrading from 80% AFUE to 95% AFUE adds $700-$2,000.
Examples with thresholds: 1.5–2.5 ton systems (typical small homes) $5,000-$8,000; 3–4 ton (larger homes) $8,000-$13,000. SEER bands: 13-14 SEER (budget), 15-16 SEER (mid), 17-20 SEER (premium).
Practical Ways To Lower Furnace + AC Replacement Price
Scope control and timing reduce cost: accept a matched-but-not-top-tier SEER, replace during off-season, and bundle equipment to lower markups.
Specific tactics: get 3 written quotes, leave existing ductwork intact when functional, schedule in late spring/fall, opt for a single-stage instead of modulating where acceptable, and provide contractor easy access to equipment to lower labor hours.
Price Differences Between Urban, Suburban, and Rural Markets
Expect urban prices +5% to +20% over rural; suburban markets often land near the national average.
Regional deltas: urban high-demand areas (large metros) typically charge $7,500-$13,000; suburban $6,000-$10,000; rural $5,000-$9,000. Labor rate spread commonly $75-$150 per hour in metros versus $60-$100 in rural areas.
Installation Time, Crew Size, and Typical Labor Rates
Average install takes 8–16 hours with a 2–3 person crew; labor portion is commonly $1,200-$3,500.
Typical labor math: 10-15 labor hours × $75-$125 per hour for a standard swap. Complex jobs (duct modification, high attic access) can double hours to 20–30, increasing labor to $1,800-$3,750.
Common Add-Ons, Removal Fees, and Permit Costs That Increase the Quote
Watch for line-set replacement, condensate/drain upgrades, new thermostat, and disposal fees, which together can add $400-$2,500.
Typical add-on examples: new refrigerant line set $300-$1,200, new pad or condenser pad $100-$400, thermostat replacement $80-$400, refrigerant recharge $150-$600, old unit disposal $75-$300, permit and inspection $50-$400.