Replacing a furnace and central air typically runs $6,000-$14,000 overall depending on equipment size, efficiency, and labor. This cost to replace furnace and central air reflects combined furnace replacement, new AC condenser and evaporator coil, duct work, and permits.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete Furnace + Central AC Replace | $4,500 | $9,000 | $16,000 | Typical single-family, 2-3 ton equipment, standard ducts |
| Furnace Only | $1,500 | $3,500 | $7,000 | Mid-efficiency gas furnace to high-efficiency modulating |
| AC Condenser + Coil Only | $1,500 | $4,000 | $8,000 | 2-5 ton Condenser and matched coil |
| Duct Repair/Replacement | $500 | $3,000 | $10,000 | Partial repairs to full replacement |
Content Navigation
- Typical Total Price and Unit Costs for a Home Replacement
- Price Breakdown: Materials, Labor, Equipment, and Permits
- How System Size and Efficiency Change the Final Quote
- Site Conditions That Drive Up Labor and Equipment Fees
- Practical Ways to Lower the Replacement Price
- Regional Price Differences and How Much They Vary
- Real-World Quote Examples With Specs and Totals
- Common Add-Ons and Fees That Increase a Quote
Typical Total Price and Unit Costs for a Home Replacement
Assumptions: 1,800-2,400 sq ft home, 2.5-ton system, suburban U.S., standard gas furnace and 14-16 SEER AC.
Most homeowners pay $6,000-$12,000 for full furnace and central air replacement, with $9,000 as a common mid-range quote.
Breakdown examples: furnace $2,000-$5,500, AC condenser + coil $2,000-$5,000, labor and installation $1,200-$3,000, minor duct repairs $500-$2,000.
Per-unit guidance: $1,200-$2,500 per ton installed for basic AC; furnaces vary $1,200-$4,000 per unit depending on AFUE and single- vs two-stage operation.
Price Breakdown: Materials, Labor, Equipment, and Permits
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $1,500-$6,000 | $1,000-$3,500 | $2,000-$8,000 | $50-$500 | $100-$800 |
Materials and equipment are the largest single chunk—high-efficiency units drive the top-end price.
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Labor includes HVAC tech hours, helper crew, and possible specialty trades for gas line or electrical work at $75-$150 per hour depending on location.
How System Size and Efficiency Change the Final Quote
System tonnage and efficiency rating are primary price levers: 1.5-2.0 ton systems are cheapest, 3-5 ton systems cost more.
Numeric thresholds: choosing 2.5 vs 4.0 ton can add $1,500-$3,000 to equipment cost; upgrading from 14 SEER to 20+ SEER can add $2,000-$5,000.
Furnace AFUE: 80-85% furnaces are $1,200-$2,000; 90-98% high-efficiency units are $2,500-$6,000 and often need PVC venting upgrades.
Site Conditions That Drive Up Labor and Equipment Fees
Tight access, second-floor furnace locations, or long refrigerant line runs commonly add 2-6 hours and $300-$1,200 to labor.
Specific drivers: runs over 50 linear feet of refrigerant line may require larger charge and add $400-$1,200; converting oil to gas or adding gas line work can add $500-$2,000.
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Older homes needing code upgrades (electrical panel, combustion air) can add $500-$3,000 in trade work and permit costs.
Practical Ways to Lower the Replacement Price
Control scope: replace only needed components, hire for matched systems, and schedule during off-peak seasons for lower labor rates.
Choices that reduce cost: keep existing ductwork if in good condition, select mid-efficiency equipment instead of top-tier, and bundle furnace and AC purchase with the same contractor for volume discounts.
Prepare the site: remove obstacles, provide clear access, and handle minor demolition yourself to save on labor hours.
Regional Price Differences and How Much They Vary
Expect 10%-30% higher installed costs in high-cost states (CA, NY, MA) and 5%-15% lower in lower-cost states (Midwest, South).
Typical deltas: Northeast and West Coast +15%-30%; Sun Belt states (TX, FL) near average for AC but lower for furnace-only work; Mountain and Plains states often -5% to -15%.
Assumptions: contractor overhead, local permit fees, and labor markets.
Real-World Quote Examples With Specs and Totals
| Example | Specs | Labor Hours | Unit Pricing | Total |
|---|---|---|---|---|
| Budget Replace | 2.0-ton 14 SEER AC + 80% AFUE furnace | 8-10 hours | AC $2,000; Furnace $1,600 | $4,500-$5,500 |
| Typical Upgrade | 2.5-ton 16 SEER AC + 95% AFUE furnace | 12-16 hours | AC $3,200; Furnace $3,000 | $8,000-$10,000 |
| High-Efficiency | 3.5-ton 20 SEER AC + modulating 98% AFUE | 16-24 hours | AC $5,000; Furnace $5,500 | $13,000-$16,000 |
These examples include basic duct sealing and permit costs but exclude major duct replacement or structural modifications.
Common Add-Ons and Fees That Increase a Quote
Expect extra charges for full duct replacement, condensate pump installs, CO testing, and optional thermostats.
Typical add-ons: full duct replacement $3,000-$10,000, mini-split supplement $1,500-$4,000, smart thermostat $200-$400, condensate pumps $150-$400, rush installations +10%-25%.
Assumptions: standard warranty labor; extended warranties add material cost or service fees.
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.