Replacing an AC unit and furnace together typically costs more than separate swaps because labor, permits, and matching equipment add complexity; buyers usually pay $6,000-$14,000 for combined replacement depending on system size and efficiency. This article gives practical price ranges, per-unit rates, and the main cost drivers for the cost to replace AC unit and furnace within the first 100 words.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Single-family home full system | $6,000 | $9,500 | $14,500 | Assumptions: 2–3 ton AC, 80k–100k BTU furnace, suburban install. |
| AC only (condensing unit) | $2,800 | $4,500 | $7,500 | Per ton: $1,200-$2,500/ton depending on SEER. |
| Furnace only | $2,200 | $3,500 | $6,000 | Furnace inputs: 60k–120k BTU; AFUE affects price. |
| Installation labor | $1,200 | $2,500 | $4,500 | Assumptions: standard access, two technicians. |
Typical Total Price and Per-Unit Rates for Home Systems
Most homeowners replacing both systems in a 1,800–2,400 sq ft house pay $6,000-$14,500 total, with an average near $9,500; the AC portion is usually $2,800-$7,500 and the furnace $2,200-$6,000. This includes standard duct connections, basic thermostat, and disposal of old units.
Assumptions: Midwest labor rates, standard single-family home, normal access, mid-range 14–16 SEER AC and 80%–96% AFUE furnace.
How Equipment, Labor, and Permits Break Down in a Quote
Quotes typically separate equipment, labor, permits, and disposal so buyers can compare line items easily. Seeing a line-item breakdown helps isolate where to trim costs without compromising safety.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $2,200-$9,000 | $1,200-$4,500 | $3,000-$9,000 | $50-$500 | $100-$400 |
Notes: Materials include refrigerant, filters, duct transition; equipment is the AC condensing unit, coil, furnace or heat pump; labor hours vary by complexity.
Which Variables Most Change the Final Quote
System capacity, efficiency, and ductwork condition cause the largest price swings; moving from 2 to 3 tons adds roughly $1,200-$2,000 for the AC, while upgrading from 80% to 96% AFUE furnace can add $500-$1,500. Two high-impact numeric thresholds to watch: system tonnage (1.5–5 tons) and furnace input (40k–120k BTU).
Other drivers include SEER rating (14 SEER vs 20 SEER: +$1,800-$3,500), long refrigerant lines (+$300-$1,200 for runs over 25 feet), and required duct repairs (+$500-$4,000).
Practical Ways to Reduce the Combined Replacement Price
Controlling scope and timing reduces cost: replace both systems in one visit to save labor mobilization, choose mid-range efficiency, and schedule in shoulder seasons. Bundling both replacements with the same contractor commonly saves $400-$1,200 compared with separate projects.
- Accept 14–16 SEER instead of top-tier SEER to cut $1,000–$3,000.
- Prep site: clear access, remove obstructions to save labor hours.
- Compare 3 written quotes and ask for equipment/model breakdowns.
Regional Price Differences and What to Expect
Prices vary by region: coastal and Northeast markets are typically 10%–25% higher than Midwest and South; rural installs often add travel/minimum fees of $150-$600. Expect average total in the Midwest ~$8,500, Northeast ~$10,500, and West Coast ~$11,000.
Local permit costs range from $50 in small towns to $500+ in large cities; utility rebates and state incentives can offset $200-$2,000 depending on efficiency selected.
Real-World Quote Examples With Specs and Totals
Example 1: Small home 1.5 ton AC + 80k BTU furnace. Equipment $3,200, labor $1,200, permits/disposal $200 = $4,600 low-complexity install. This fits tight budgets with basic efficiency.
Example 2: Typical suburban home 3 ton AC (16 SEER) + 100k BTU 95% AFUE furnace. Equipment $7,000, labor $2,500, permits/disposal $300 = $9,800 average install.
Example 3: High-efficiency 3.5 ton (20 SEER) + 120k BTU 98% AFUE with ductwork replacement. Equipment $11,000, labor $4,000, permits/disposal $500 = $15,500 high-end scenario.
Additional Fees, Timing, and Labor Expectations
Typical crew size is two technicians; install time for both systems is 6–12 hours if ductwork is sound, 1–3 days when new ducts or structural access needed. Expect extra charges for expedited scheduling ($150-$600) and after-hours work.
Minimum dispatch fees run $75-$150 and diagnostic calls for existing equipment before a quote are often $75-$150 (sometimes waived with a purchase).