Most U.S. homeowners pay between $6,500 and $14,500 to install a new forced-air furnace paired with a central cooling unit; the exact cost depends on furnace BTU, AC tonnage, duct condition, and labor. This article lists realistic pricing, per-unit ranges, and the main cost drivers for forced air furnace with cooling unit cost so buyers can budget and compare quotes quickly.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete Furnace + AC Install | $4,500 | $9,500 | $18,000 | Includes equipment, basic duct hookup; varies by size and region |
| Furnace Only (Installed) | $2,000 | $4,200 | $8,500 | Mid-efficiency to high-efficiency models |
| AC Condenser + Coil (Installed) | $2,500 | $5,300 | $10,000 | 1.5–5.0 ton range |
| Duct Repair/Replacement | $500 | $3,000 | $10,000 | Partial repairs vs full replacement |
Assumptions: Typical single-family home, 1.5–3.5 ton AC, 60k–120k BTU furnace, accessible equipment location, normal permits.
Total Installed Cost for a Forced-Air Furnace With AC
Expect a full replacement (new furnace, AC condenser, coil, basic thermostat, and hookup) to run $6,500-$12,000 for common U.S. homes; high-end equipment or extensive ductwork pushes costs to $14,000-$18,000. The typical national average price is about $9,500 for a 2.5–3.0 ton AC with a 80k–100k BTU furnace including labor.
Per-unit examples: furnace $2,000-$6,000 installed, AC condenser + coil $2,500-$7,500 installed, thermostat $150-$600, misc materials $200-$900.
Breakdown of Materials, Labor, Equipment, and Disposal
| Component | Materials | Labor | Equipment | Delivery/Disposal |
|---|---|---|---|---|
| Furnace | $900-$4,500 | $600-$2,200 | $0-$200 | $50-$200 |
| AC Condenser & Coil | $1,200-$5,500 | $800-$2,500 | $0-$300 | $75-$250 |
| Duct Repair/Replacement | $300-$6,000 | $400-$3,000 | $100-$400 | $50-$200 |
| Permits & Misc | $0-$200 | $0-$400 | $0 | $0-$50 |
Materials and labor together typically account for 70%–85% of the total installed price.
How Furnace Size, SEER Rating, and Ductwork Affect Price
Furnace capacity (BTU) and AC tonnage are primary cost levers: 80k–90k BTU furnaces with 2–2.5 ton AC are cheapest; moving to 100k–120k BTU and 3–4 ton raises equipment cost by $800-$3,000. Higher SEER ratings add roughly $300-$1,500 per point of efficiency at the mid-to-high end (e.g., 14 SEER vs 19 SEER).
Two specific thresholds: replacing ducts for >2,000 sq ft homes often adds $3,000-$10,000; tight-access installs (attic or narrow crawl) add $500-$2,000 in labor.
Practical Ways To Lower Furnace + AC Installation Price
Control scope: keep existing ducts if in good shape, choose mid-efficiency equipment, and accept standard thermostats to save upfront. Bundling furnace and AC in one contractor purchase usually yields a 5%–15% discount versus separate replacements.
Other tactics: schedule in shoulder seasons (spring/fall) to avoid peak emergency rates, get three written quotes, and remove unnecessary ductwork or attic insulation work before the crew arrives to avoid change orders.
How Regional Prices Change for This Combined System
Labor and permit differentials create regional deltas: urban Northeast/West often cost 10%–25% more than Midwest; rural markets can be 5%–15% lower. Expect $800-$2,500 higher total in high-cost metro areas like Boston, San Francisco, or New York compared with Midwest averages.
| Region | Relative Cost | Typical Range |
|---|---|---|
| Midwest | Baseline | $6,000-$11,000 |
| South | -5% to +5% | $5,700-$11,500 |
| Northeast/West | +10% to +25% | $7,000-$14,000 |
Typical Job Time, Crew Size, and Hourly Rates
Install duration: full furnace+AC swap 8-18 hours over 1–3 days with a 2–3 person crew; simple furnace-only swaps 4–8 hours. Technician hourly rates range $75-$125 per hour; helper rates $40-$70 per hour.
Example labor math: 12 hours × $95/hr (tech+helper blended) = $1,140 labor, not including materials or permits.
Common Add-Ons, Permits, and Disposal Fees That Raise the Quote
Frequent extras: permit fees $50-$400, refrigerant recovery/recharge $150-$450, condensate pump $80-$250, line-set replacement $200-$900, and thermostat upgrade $150-$600. Full duct replacement and major electrical upgrades can add $2,000-$8,000 to the job.
Ask for a line-item quote so permit, disposal, refrigerant, and electrical work are visible; these smaller items often explain most of the variation between competitor bids.