Typical buyers pay $7,000-$14,000 to install a new central air conditioner and furnace; replacement-only jobs are often $4,000-$10,000. The central air and heat cost depends on system size, efficiency, ductwork condition, and local labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Full System Install (AC + Furnace) | $5,500 | $10,500 | $18,000 | Assumptions: 2,000 sq ft home, mid-efficiency equipment, standard ducts. |
| AC Replacement Only | $2,800 | $5,500 | $9,500 | Condensing unit and coil swap; ducts retained. |
| Furnace Replacement Only | $1,800 | $4,200 | $8,000 | Gas furnace, mid-efficiency; excludes venting upgrades. |
| Duct Repair/Replacement | $800 | $4,000 | $12,000 | Patch to full replacement; per 1,000 sq ft variations. |
Typical Total Cost To Install Central Air And Furnace
Full installations typically range $7,000-$14,000 for an average 1,800–2,400 sq ft U.S. home using a 3–4 ton AC and a 80,000–100,000 BTU gas furnace. Average national install price is about $10,500 under normal access and standard venting.
Assumptions: Midwest labor rates, mid-efficiency equipment, no major ductwork changes.
Breakdown Of Materials Labor Equipment And Permits
This cost breakdown shows what appears on most quotes; expect variation by brand and local code requirements. Labor and equipment (AC unit + furnace) are the largest line items.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $2,000-$6,000 | $1,500-$4,000 | $3,000-$9,000 | $50-$600 | $100-$600 |
Materials include coil, filters, thermostats; equipment is the condensing unit, furnace, and indoor coil. Permit costs vary widely by jurisdiction.
How System Size SEER Rating And Furnace BTU Change The Final Quote
System capacity and efficiency strongly affect price: 2.5–3.0 ton units cost $3,000-$5,500 while 4–5 ton units cost $5,000-$9,500. Upgrading from 13 SEER to 16–18 SEER typically adds $1,200-$3,500 to equipment cost.
Furnace BTU: a 60,000–80,000 BTU furnace is $1,800-$4,000; 100,000–120,000 BTU models run $3,500-$7,500 due to larger heat exchangers and higher gas flow requirements.
How To Lower Central Air And Heat Project Price
Buyers can control costs by choosing mid-efficiency equipment, keeping existing ductwork intact, and scheduling installs off-season. Replacing only the failed component (AC or furnace) instead of full system saves $2,000-$6,000 when ducts and matching components are compatible.
Obtain 3 written quotes, accept contractor schedules in shoulder seasons, and avoid unnecessary high-SEER upgrades unless rebates justify them.
Regional Price Differences Across U.S. Markets
Prices shift with labor and permitting: expect 10%-25% higher total costs in coastal metro areas and 5%-15% lower in rural Midwest markets. Example delta: $10,500 average becomes $12,000-$13,000 in high-cost cities and $8,500-$9,500 in lower-cost regions.
Climate affects specs: colder zones require higher BTU furnaces and often add $500-$2,000 for venting and winterization; hot-humid zones favor larger AC capacity and dehumidification add-ons.
Typical Installation Time Crew Size And Labor Rates
Install times vary: full system install takes 12-24 hours (1–3 days) with a 2–4 person crew; expect $75-$125 per hour for technicians in most U.S. markets.
Labor estimate examples: straightforward AC swap 8-12 hours; full furnace plus AC swap 16-24 hours. Assumptions: normal attic access, single-story or standard two-story layout.
Common Add-Ons Removal And Permit Fees That Raise The Final Quote
Frequent add-ons include thermostat upgrades ($150-$500), zoning dampers ($500-$3,000), and refrigerant line replacement ($300-$1,200). Full duct replacement is the largest add-on, typically $4-$9 per sq ft or $2,500-$12,000 total.
| Add-On | Low | Average | High |
|---|---|---|---|
| Thermostat/Control | $150 | $300 | $600 |
| Zoning Dampers (per zone) | $500 | $1,200 | $3,000 |
| Duct Repair/Replacement (per sq ft) | $4 | $6 | $9 |
| Refrigerant Recharge | $120 | $250 | $600 |
Three Real-World Quotes With Specs Labor And Totals
Quote A: 2.5 ton, 14 SEER AC + 80k BTU furnace, minimal duct repair, 2-day install, 3 techs — $7,200-$8,500. Good fit for small- to mid-size homes with existing ducts.
Quote B: 3.5 ton, 16 SEER AC + 100k BTU furnace, moderate duct sealing, 3-day install, 4 techs — $11,500-$13,000.
Quote C: 4.5 ton, 18 SEER AC + 120k BTU high-efficiency furnace, new ducts, zoning, 4-day crew — $16,000-$22,000.