Gas Furnace and Air Conditioner Price Guide 2026
Average costs for a full gas furnace and air conditioner replacement vary by system size, efficiency, and installation complexity. Typical factors include equipment efficiency, SEER and AFUE ratings, labor hours, and region-specific permits or disposal fees. The cost overview below uses USD estimates and common assumptions for U.S. homes.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Gas furnace (new, efficiency 80-90% AFUE) | $2,500 | $3,800 | $5,200 | Includes basic installation |
| Air conditioner (central, 1.5–2.5 ton, 13-16 SEER) | $3,600 | $4,800 | $7,000 | Includes outdoor condenser |
| Combined system (gas furnace + AC) | $6,100 | $9,900 | $13,800 | Typical residential setup |
| Labor & installation | $1,200 | $2,600 | $4,000 | Hours vary by home layout |
| Permits & codes | $100 | $350 | $900 | Regional differences apply |
| Delivery/ disposal | $50 | $150 | $350 | Carrier or dealer charges |
| Taxes & overhead | $300 | $800 | $1,200 | Tax on equipment and admin |
Overview Of Costs
Cost ranges for a full gas furnace and air conditioner replacement typically span from about $6,100 to $13,800, depending on efficiency, capacity, and installation complexity. For budgeting, a common price range is $9,900 on average. Assumptions include a mid-sized home, standard ductwork, and conventional installation timelines. The main cost drivers are unit efficiency (AFUE for furnaces, SEER for AC), system tonnage, and labor intensity. Assumptions: region, specs, labor hours.
Per-unit context, a typical furnace might be priced around $1,900-$3,600 for the unit itself, with installation contributing $1,200-$2,600. A typical central AC unit falls in the $3,600-$4,800 range, with labor and materials adding on. When combined, the total project often lands in the $9,000-$14,000 band for a standard residential replacement. Assumptions: region, specs, labor hours.
Cost Breakdown
| Components | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $2,500 | $3,800 | $5,200 | Furnace AFUE 80-90%, AC 13-16 SEER |
| Labor | $1,200 | $2,600 | $4,000 | Permits may affect data-formula=’labor_hours × hourly_rate’> |
| Equipment | $2,000 | $3,500 | $4,800 | Furnace + AC units |
| Permits | $100 | $350 | $900 | Local code compliance |
| Delivery/Disposal | $50 | $150 | $350 | Old unit removal |
| Warranty/Overhead | $300 | $800 | $1,200 | System coverage |
| Taxes | $100 | $400 | $800 | Dependent on state |
What Drives Price
Efficiency thresholds strongly influence price. A furnace with AFUE above 90% often costs more upfront but saves more on fuel over time. Similarly, AC units with SEER 16 or higher command higher installation costs and sometimes require advanced ductwork. A key pricing variable is the system tonnage—3-5 tons cover many large homes, but smaller homes may need 1.5–2 tons. Assumptions: region, specs, labor hours.
Regional Price Differences
Prices vary by market. In the urban Northeast, higher labor rates and stricter permits can push totals toward the upper end of the range. In the Midwest suburban market, costs cluster around the average range with moderate permitting. In many rural Southwest areas, savings come from lower labor and simpler delivery, but equipment choices can still impact total. Expect ±10-20% deltas by region. Assumptions: region, specs.
Labor, Hours & Rates
Install time depends on duct condition, existing gas and electrical readiness, and permission to vent. Typical crews include a licensed HVAC technician and helper, with installation hours commonly in the 6–14 hour window for a full swap. A longer run or added ductwork increases costs. Labor costs are the largest variable in most quotes. Assumptions: region, specs, labor hours.
Seasonality & Pricing Trends
Pricing can shift with demand. Fall and early winter demand often yields higher installation quotes due to peak HVAC activity, while spring can offer more favorable scheduling. Suppliers sometimes run promotions on bundled furnace and AC packages, but availability varies by region. Off-season pricing may reduce labor surcharges in certain markets. Assumptions: region, timing, scope.
Price By Region
Regional price snapshots help plan budgets:
- Coastal urban: higher labor, more permitting; furnace AFUE 90% and SEER 16+ may push total above average by 15-25%.
- Midwest suburban: balanced costs; typical 3–4 ton AC and 80–90% furnace common; totals align with average estimates.
- Rural Southwest: lower labor, potential equipment cost variance; totals can be 5-15% below average for standard setups.
Real-World Pricing Examples
The following scenario cards illustrate typical quotes for common configurations. Assumptions: region in effect, standard ductwork, single-family home, no major repairs needed. Assumptions: region, specs, labor hours.
Basic Scenario
Specs: gas furnace 80% AFUE, AC 13 SEER, 2-ton system, standard ductwork. Labor: 8 hours. Total: $7,700 (Low: $6,100, High: $9,900).
Mid-Range Scenario
Specs: gas furnace 90% AFUE, AC 15 SEER, 3-ton system, upgraded ventilation. Labor: 12 hours. Total: $11,400 (Low: $9,900, High: $13,800).
Premium Scenario
Specs: high-efficiency furnace 95% AFUE, 16 SEER, 3.5–4 ton AC, enhanced filtration and smart controls. Labor: 14 hours. Total: $14,500 (Low: $12,000, High: $16,800).
Cost Compared To Alternatives
Compared with replacing only one component or choosing a heat pump, a full gas furnace and AC replacement often offers better long-term energy certainty in regions with extreme winters. A heat pump may present competitive upfront costs in milder climates but different maintenance profiles and efficiency limits.
Maintenance & Ownership Costs
Annual maintenance typically ranges from $150-$300 for inspections and tune-ups, with occasional part replacements. The five-year cost outlook commonly includes planned filter changes, connection checks, and potential duct cleaning. Lifetime cost of ownership depends on fuel prices, efficiency, and service plans. Assumptions: region, usage, maintenance schedule.