New Air Conditioning and Furnace Cost Guide 2026
Costs for a new central air conditioning system with a furnace vary by efficiency, system size, and installation complexity. The main drivers are unit SEER rating, furnace AFUE, ductwork needs, and local labor rates. Recent pricing ranges help buyers estimate a realistic budget and compare quotes.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| System (AC unit) | $2,500 | $4,500 | $7,000 | 2–5 ton units common for homes |
| Furnace | $1,500 | $3,000 | $6,500 | Gas or electric; high-efficiency models cost more |
| Labor & Installation | $1,500 | $3,000 | $4,500 | Permits may apply |
| Ductwork & Retrofit | $1,000 | $4,000 | $7,000 | Includes sealing and zoning upgrades |
| Permits & Inspections | $50 | $200 | $500 | Local variation |
Overview Of Costs
Typical project ranges reflect unit selection and installation complexity. A complete system replacement for a mid-sized home generally falls between $5,500 and $12,000, with higher-end installations surpassing $15,000. Per-unit ranges often appear as $2,000–$4,000 for the AC unit and $1,500–$3,500 for the furnace, depending on efficiency and components. Assumptions: region, house size, and current ductwork.
Cost Breakdown
Understanding components helps buyers target quotes effectively. The table below shows a typical mix of costs for a mid-range installation, including a high-efficiency furnace and a 3.5–4 ton AC unit. Labor is highly variable by market, and ductwork can be a major driver when existing ducts require upgrades or sealing.
| Category | Low | Average | High | Notes | Span |
|---|---|---|---|---|---|
| Materials | $3,000 | $6,000 | $9,000 | Includes furnace, AC, filters, and basic controls | |
| Labor | $1,800 | $3,000 | $4,800 | Crew size and project complexity impact hours | |
| Equipment | $0 | $1,500 | $3,000 | Permits or rental tools if needed | |
| Permits | $50 | $200 | $500 | Local code compliance | |
| Contingency | $200 | $700 | $1,500 | Unforeseen duct or wiring issues | |
| Taxes | $150 | $300 | $600 | Sales tax varies by state |
Assumptions: region, specs, labor hours. data-formula=”labor_hours × hourly_rate”>
What Drives Price
Key price drivers include system efficiency, size, and installation complexity. Higher SEER and AFUE ratings improve long-term energy use but raise upfront costs. A home with existing ducts in good condition reduces ductwork prices, while homes needing extensive retrofit or venting upgrades see large cost increases. Extra equipment like smart thermostats, zoning systems, or air quality upgrades add to the total.
Ways To Save
Smart planning can trim upfront costs without sacrificing comfort. Consider these tactics: choose a mid-range SEER/AFUE balance, schedule installations in off-peak seasons, combine equipment replacement with duct sealing, and request multiple quotes with clear scope definitions to avoid scope creep.
Regional Price Differences
Prices vary by market and climate zone across the U.S. Regional pricing can swing by about ±15–25% between Northeast, Midwest, South, and West. Urban areas typically see higher labor and permitting fees than rural zones, while energy-efficiency incentives differ by state and utility providers. Assumptions: city vs rural, local incentives, and labor competition.
Labor, Hours & Rates
Labor costs reflect crew size and regional wages. Typical install crews range from 2–4 technicians over 1–3 days for a standard replacement. In high-wage metro areas, labor can push toward the upper end of the range, while smaller towns may land closer to the lower end. A mini formula example helps estimate: data-formula=”labor_hours × hourly_rate”>.
Real-World Pricing Examples
Three scenario cards illustrate common outcomes.
Basic
Specs: mid-range furnace and 2.5 ton AC, no duct upgrades. Hours: 12–18. Total: $5,500–$7,000. Per-unit: AC $2,000–$3,000; Furnace $1,500–$2,500; Labor $2,000–$3,000. Notes: modest footprint, standard controls.
Mid-Range
Specs: mid-to-high efficiency furnace and 3.5 ton AC, partial duct sealing. Hours: 18–28. Total: $8,500–$11,000. Per-unit: AC $3,000–$4,000; Furnace $2,000–$3,500; Labor $3,000–$5,000. Notes: includes basic air quality upgrade.
Premium
Specs: high-efficiency furnace and 4–5 ton variable-speed AC, full duct retrofit, zoning. Hours: 28–40. Total: $13,000–$18,000. Per-unit: AC $4,000–$7,000; Furnace $3,500–$6,000; Labor $5,500–$7,000. Notes: extensive upgrades and advanced controls.