Most homeowners replacing both an air conditioner and furnace pay $6,000-$18,000 total; the combined cost depends on system capacity, efficiency, ductwork, and installation complexity. This article gives practical pricing ranges and the main cost drivers so readers can compare quotes for air conditioner furnace cost estimates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Combined AC + Furnace Replacement | $5,000 | $10,500 | $22,000 | Assumptions: 2.5-3.5 ton AC, 80k-100k BTU furnace, standard ductwork, suburban installer. |
Content Navigation
- Typical Replacement Cost for an AC and Furnace Combo
- Materials, Labor, Equipment and Permit Breakdown
- How System Size, SEER Rating, and AFUE Change the Final Quote
- How To Lower Replacement Price Without Sacrificing Function
- Regional Price Differences Across the U.S.
- Typical Installation Time, Crew Size, and Hourly Rates
- Three Real-World Quote Examples With Specs and Totals
- Common Add-Ons and Fees That Increase the Final Price
Typical Replacement Cost for an AC and Furnace Combo
Most full-system replacements run $6,000-$18,000 for a typical single-family home. Low-end installs (smaller homes, basic efficiency) start around $5,000; average installs fall between $9,000-$12,000; high-end systems, multi-zone setups, or difficult installs can reach $18,000-$22,000.
Assumptions: 2.5–3.5 ton split AC, 80k–100k BTU gas furnace, one-story house, normal access.
Materials, Labor, Equipment and Permit Breakdown
Expect materials to be 40–60% of the total price, labor 25–40%, and permits/equipment/overhead the remainder.
| Cost Component | Low | Average | High | Typical Notes |
|---|---|---|---|---|
| Materials (units, coils, controls) | $2,000 | $5,500 | $12,000 | Includes AC condenser, evaporator coil, furnace, basic controls. |
| Labor (installation) | $1,200 | $3,500 | $6,500 | Typical crew 8-20 hours; $75-$125 per hour. |
| Equipment & Accessories | $300 | $900 | $2,500 | Thermostat, line-sets, mounts, valves. |
| Permits & Disposal | $150 | $300 | $900 | Local permit fees and old-unit disposal. |
| Overhead/Contingency/Tax | $350 | $800 | $2,100 | Contractor markup, warranty handling, sales tax. |
How System Size, SEER Rating, and AFUE Change the Final Quote
Capacity and efficiency change costs quickly: each additional ton of AC typically adds $1,500-$4,000; moving from 13 SEER to 16–18 SEER adds $800-$2,500; upgrading furnace AFUE from 80% to 95% adds $700-$2,500.
Examples of numeric thresholds: under 2.5 tons is common for small homes; 3.5–4 tons for larger homes increases compressor and duct demands. High-efficiency heat pumps or variable-speed furnaces add both equipment and labor complexity.
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How To Lower Replacement Price Without Sacrificing Function
Controlling scope—matching rather than upsizing capacity, keeping standard efficiency, and doing non-structural prep work—cuts costs most effectively.
- Choose 14–16 SEER and mid-grade AFUE to balance price and operating cost.
- Schedule replacement in shoulder seasons (spring/fall) to avoid peak pricing.
- Prepare access and remove obstacles to reduce crew hours.
- Get at least three itemized quotes and compare line items, not just totals.
Regional Price Differences Across the U.S.
Prices vary: expect 5–15% higher labor and overhead in urban Northeast/West Coast markets and 5–10% lower in many parts of the Midwest and South.
| Region | Typical Delta vs National | Average Combined Price |
|---|---|---|
| Northeast/Urban West Coast | +10–15% | $11,500-$20,000 |
| Southeast/Mid-Atlantic | +0–8% | $9,500-$15,000 |
| Midwest/Rural South | -5–10% | $7,500-$13,000 |
Typical Installation Time, Crew Size, and Hourly Rates
Full system replacement usually takes 8–20 hours with a 2–4 person crew; hourly rates run $75-$125 per technician.
Simple swap-outs (same-size units, intact ducts) take one crew day. Complex installs—new ducts, multi-level piping, or code upgrades—can stretch to 2–3 days and increase labor line items proportionally.
Three Real-World Quote Examples With Specs and Totals
Concrete examples clarify how specs map to price.
| Scenario | Specs | Labor Hours | Per-Unit Rates | Total |
|---|---|---|---|---|
| Basic Replacement | 2.5 ton AC, 80k BTU furnace, standard duct | 10 | $1,800/ton AC, $1,200 furnace | $5,900 |
| Mid-Range | 3.5 ton AC, 95k AFUE 95% furnace, new thermostat | 14 | $2,500/ton AC, $2,800 furnace | $11,200 |
| High-End | 4.0 ton AC, modulating furnace, variable-speed blower, new ducts | 30 | $3,200/ton AC, $5,500 furnace | $20,800 |
Common Add-Ons and Fees That Increase the Final Price
Expect additional charges for duct modifications, electrical upgrades, advanced thermostats, and rush scheduling.
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Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money. - Check for Rebates
Always research current rebates and incentives — they can significantly reduce your overall cost. - Compare Multiple Quotes
Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors. - Negotiate Smartly
Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.
- Duct repair or replacement: $1,000-$6,000 depending on extent.
- Electrical panel or disconnect upgrade: $300-$1,500.
- Smart thermostat: $150-$400 installed.
- Expedited or off-hours labor: 10–30% surcharge.