Average Cost of New AC and Ductwork: What Buyers Pay 2026

Installing a new central air conditioner plus new ductwork typically costs homeowners between $6,000 and $18,000 depending on system size, duct complexity, and labor. This article breaks down realistic cost ranges, per-ton and per-square-foot pricing, and the main drivers that change the final price for new AC and ductwork.

Typical Total Price And Per-Ton AC Pricing For a 1,800–2,500 sq ft Home

Assumptions: Single-family home, moderate attic access, Midwest labor rates, 2.5–3.5 ton load.

Most homeowners pay $8,000-$14,000 for a complete new AC plus full duct replacement for a 1,800–2,500 sq ft house.

Breakdown: equipment $4,500-$9,000 (2.5–3.5 ton unit at $1,800-$4,000 per ton installed), ducts $3,500-$6,000 at $4-$7 per sq ft, and contractor overhead/permit $500-$1,500. High-end installs with premium 16+ SEER units and custom sheet metal can reach $18,000+.

Material, Labor, Equipment, Permits And Delivery Costs In Quotes

The largest line items are equipment and labor; expect materials and labor to be roughly 40–60% each of the total for duct-heavy projects.

Assumptions: Labor rates $75-$125 per hour, 16-48 labor hours total depending on scope.

How Duct Size, Square Footage, And Number Of Runs Change Price

Ductwork pricing pivots on conditioned floor area and number of runs: expect $4-$9 per sq ft for standard single-level homes, and $10-$30 per linear ft for bespoke metal trunking and branch runs.

Numeric thresholds: under 1,200 sq ft — $3,000-$6,000 total ducts; 1,200–2,500 sq ft — $4,000-$9,000; over 2,500 sq ft — $8,000-$12,000. Branch runs: adding each complex run (long, insulated, through walls) costs $150-$450 per run extra.

Which Site Conditions And System Specs Most Raise Quotes

Tight access, two-story homes with long vertical drops, and high-efficiency SEER 16+ systems typically add 15–40% to baseline pricing.

Specific drivers: attic access vs crawlspace (attic adds $500-$2,000 if insulation/clearance work is required), long refrigerant line sets (>50 ft) add $200-$800, and zone dampers or multi-zone systems add $800-$3,500 per additional zone.

Practical Ways To Lower The Cost Of New AC And Ductwork

Control scope: prioritize sealing and selective duct replacement, choose mid-SEER units, and schedule in off-peak seasons to reduce bids by 5–15%.

Options: seal and insulate existing ducts for $300-$1,200 instead of full replacement; combine AC install with HVAC package deals; obtain 3 written quotes and compare line items rather than bottom-line price only.

Regional Price Differences Across The U.S. For AC And Ductwork

Expect coastal metro areas (NE, CA) to run 10–25% higher than Midwest and rural markets due to labor and permit costs.

Three Real-World Quote Examples With Specs And Totals

Concrete examples help compare scope and per-unit costs rather than just sticker prices.