Average Cost of New AC and Ductwork: Total Price Ranges and Estimates 2026

Typical buyers pay $5,000-$15,000 for a new central air conditioner plus ductwork replacement or major repair; costs vary widely with system size and duct complexity. This article breaks down the average cost of new AC and ductwork, per-ton and per-square-foot pricing, and the main variables that change final price.

What Homeowners Typically Pay for a New AC and Ductwork Package

Assumptions: suburban U.S., 2,000 sq ft home, 2.5-ton unit, moderate attic access.

Average total cost for a typical replacement combining a new 2–3 ton AC and full duct replacement is $8,000-$12,000. This assumes mid-efficiency equipment ($3,000-$5,500) and new sheet-metal flexible ducts plus labor ($3,000-$6,500). Per-ton pricing for the condensing unit alone is commonly $1,200-$3,000 per ton installed depending on SEER and labor complexity.

Breaking Down the Quote: Equipment, Labor, and Disposal

Labor and materials usually make up roughly 70-85% of the bid; permit and disposal are small but non-negligible extras. Typical contractor rates are $75-$125 per hour; ductwork labor often billed as a job price rather than strictly hourly.

How Ductwork Type and Square Footage Affect Price

Assumptions: attic or crawlspace access, standard 8-foot ceilings.

Duct replacement runs about $4-$9 per sq ft of conditioned space for flexible duct systems and $6-$12 per sq ft for sheet metal. Example thresholds: under 1,200 sq ft expect $3,000-$5,500 total for ducts; 1,200–2,500 sq ft expect $5,000-$9,000; over 3,000 sq ft expect $9,000-$15,000 depending on floor plan complexity.

Which Variables Change the Final AC + Duct Quote Most

Two strongest variables are system capacity (tons) and duct accessibility. Capacity thresholds: 1.5–2 ton ($2,000-$4,000 installed), 2.5–3 ton ($3,500-$6,500), 4+ ton ($6,000-$12,000). Accessibility thresholds: easy attic/crawlspace adds minimal labor; tight multi-story or conditioned-duct installs can add $1,000-$4,000.

Other drivers include SEER rating (+$500-$2,500 for high-efficiency units), necessary load calculations, and code-required duct sealing or insulation upgrades (+$500-$1,500).

Practical Ways to Reduce the Price for New AC and Ductwork

Prioritize scope control: replace only damaged duct runs, choose mid-efficiency equipment, and schedule in off-peak season to lower bids. Additional cost-saving tactics: get three written quotes, bundle HVAC and duct scope with other contractors for volume discounts, accept a slightly lower SEER to reduce upfront equipment cost, and perform basic prep work (clearing attic access) yourself to reduce labor hours.

Regional Price Differences and What to Expect Locally

Assumptions: percentage deltas relative to national average.

Urban and coastal areas typically run 10%-25% higher than the national average, while rural Midwest and South can be 5%-15% lower. Example: $10,500 average nationally becomes roughly $11,500-$13,000 in high-cost metro areas and $8,500-$9,500 in lower-cost regions for the same scope and equipment.

Common Add-Ons, Permits, and Time Estimates That Add Cost

Typical installation times range from 1–3 days for AC only and 2–7 days for combined AC plus full duct replacement depending on crew size and home layout. Smaller crews increase calendar days but may lower labor line-item costs.