Most U.S. homeowners replacing both a furnace and central air conditioner pay between $6,000 and $14,000 depending on equipment size, efficiency, and ductwork. This article gives practical price ranges for furnace and air conditioner replacement cost and the main factors that move quotes up or down.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Full furnace + AC replacement (single-family home) | $5,000 | $9,000 | $16,000 | Assumes 2–3 ton AC, 80–95% AFUE furnace, typical ductwork |
| Furnace only | $1,800 | $3,800 | $8,000 | Includes unit, install, basic venting |
| AC only (central) | $2,200 | $5,000 | $10,500 | Per ton pricing affects total |
| Ductwork repair/replace | $500 | $3,000 | $10,000 | Depends on linear feet and access |
Typical Total Price for Replacing Both Furnace and AC in a Single-Family Home
For a detached U.S. home, combined replacement typically runs $6,000-$12,000 for mid-efficiency equipment; high-efficiency installs can reach $14,000-$18,000 in high-cost areas. Average combined replacements land near $9,000 under normal access and standard ductwork.
Assumptions: 2.5-ton AC, 80–96% AFUE furnace, suburban labor rates, permit required.
Breakdown of Quote Line Items: Materials, Labor, Equipment, Permits, Delivery/Disposal
Understanding line items helps compare quotes and spot padding or missing scope. Typical major line items are equipment, labor, and any duct or electrical work.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $1,800-$6,500 (furnace) + $1,500-$6,000 (AC) | $900-$3,500 (install labor) | $300-$1,200 (rigging/crane in some installs) | $50-$500 | $75-$600 |
| Includes condensers, coils, furnace cabinet | Typical crew 2-4 | Heavy-lift or curb adapters | Local mechanical permit fee | Old unit disposal, refrigerant recovery |
Variables That Most Affect the Final Quote: Capacity, Efficiency, and Ductwork
Capacity and efficiency choices change price sharply: moving from 2.5 ton to 3.5 ton raises AC cost by roughly $800-$2,000; upgrading from 14 SEER to 18 SEER adds $1,200-$3,000. Duct replacement or major sealing can add $1,000-$8,000 depending on linear footage and accessibility.
Other measurable drivers: furnace AFUE (80% vs 95% = $800-$2,000 difference), refrigerant type (R-22 replacement dramatically increases cost on older systems).
Practical Ways To Lower Furnace and AC Replacement Price
Buyers can reduce cost by choosing mid-tier efficiency, scheduling off-season installs, and replacing only faulty components when appropriate. Getting three written quotes, keeping existing ductwork when feasible, and avoiding last-minute emergency installs usually reduces the final invoice.
Other tactics: combine work with other home projects to negotiate labor bundling, prepare attic/crawlspace access beforehand, and accept contractor-grade rather than premium units if long-term efficiency is not a priority.
How Prices Vary Across U.S. Regions and Housing Types
Regional labor and permit costs shift totals: coastal urban areas are typically 10%-35% higher than the Midwest. Expect Midwest and rural prices near the low end; Northeast and West Coast suburbs often hit the high end.
| Region | Typical Delta vs National | Typical Combined Range |
|---|---|---|
| Midwest | -10% to -20% | $5,000-$9,500 |
| South | -5% to +5% | $5,500-$10,000 |
| Northeast | +10% to +30% | $7,000-$13,000 |
| West Coast | +15% to +35% | $8,000-$16,000 |
Typical Labor Time, Crew Size, and How Hourly Rates Affect the Quote
Install time varies 6-18 hours for a straightforward furnace+AC swap; complex jobs need 2-4 days. Common crew size is 2-4 technicians; expect labor rates $75-$150 per hour depending on market and crew skill.
Example formula: total labor ≈ labor_hours × hourly_rate; typical labor_hours 12–36 hours for full replacement.
Three Real-World Quote Examples With Specs and Totals
Concrete examples help translate ranges into real budgets. Each example below reflects realistic scope, hours, and per-unit pricing.
| Scenario | Specs | Labor Hours | Per-Unit Rates | Total |
|---|---|---|---|---|
| Budget Replace | 2.0-ton AC (14 SEER), 80% AFUE furnace, reuse ducts | 12 | AC $2,200, Furnace $1,900, Labor $1,200 | $5,300 |
| Typical Mid-Range | 2.5-ton AC (16 SEER), 95% AFUE furnace, minor duct sealing | 18 | AC $3,800, Furnace $3,200, Labor $2,700 | $9,700 |
| High-End Upgrade | 3.5-ton AC (18 SEER), 98% AFUE modulating furnace, new ducts | 36 | AC $6,500, Furnace $5,200, Ducts $6,000 | $17,700 |