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Cost to Replace a 5 Ton a/C Unit and Furnace – Adnan Painting and Remodeling
Published: 2026-06-30T07:59:29+00:00 • 3 min read

Homeowners typically pay a substantial upfront cost to replace a 5 ton central air conditioner with a furnace, driven by equipment efficiency, installation complexity, and region. This article presents cost ranges in USD, including common price drivers and potential savings.

Item Low Average High Notes
Equipment (AC + furnace) $4,000 $7,500 $12,000 Includes unit prices for mid-efficiency to high-efficiency pair.
Installation Labor $2,000 $4,500 $8,000 Includes removal, refrigerant handling, electrical, and duct work.
Permits & Inspections $100 $600 $1,500 varies by locality and code requirements.
Delivery/Disposal $100 $350 $800 Old equipment removal and refrigerant disposal.
Tax & Overhead $150 $450 $1,000 Average regional taxes and business overhead.

Overview Of Costs

Cost ranges reflect standard 5 ton systems with common efficiency levels. The total project range typically spans from about $6,350 to $22,300, depending on efficiency, duct modifications, and installation complexity. For clarity, per-unit pricing often appears as $/ton for equipment and $/hour for labor plus fixed fees. Assumptions: region, specs, labor hours.

Cost Breakdown

Typical cost components include equipment, labor, permits, and possible extras. The table below shows a broader view with multiple columns.

Component Low Average High Notes
Materials $4,000 $6,000 $9,500 5 ton air handler and condenser with standard SEER range.
Labor $2,000 $4,500 $8,000 Includes system swap, refrigerant, and duct work.
Equipment $3,000 $5,000 $9,000 AC unit plus furnace and coil.
Permits $100 $600 $1,500 Local code and permit fees vary.
Delivery/Disposal $100 $350 $800 Old system haul-away and refrigerant disposal.
Warranty / Tax $50 $250 $650 Material warranties and sales tax.

Pricing Variables

Factors that shift price include equipment efficiency (SEER), furnace AFUE, and ductwork needs. Overall, higher SEER units cost more upfront but may reduce long-term energy use. data-formula=”labor_hours × hourly_rate”> Labor rates differ by region and contractor experience, typically ranging from $75 to $125 per hour in many markets.

Labor, Hours & Rates

Workload depends on existing ductwork and house layout. A typical swap may require 1–2 days; more complex jobs with extensive duct reconstruction can extend to 3–4 days. Labor estimates often use an hourly model plus a fixed trip fee. Assumptions: single-story home, standard ductwork.

Regional Price Differences

Prices vary by region due to labor markets and permitting costs. In the Northeast, total project costs can run higher, while the Midwest may be moderate, and the Southwest can tilt lower unless duct upgrades are needed. Regional deltas commonly range ±15% to ±25% from national averages.

Real-World Pricing Examples

Scenario cards illustrate typical quotes for different setups.

Basic — 5 ton 16 SEER condenser, 80% AFUE furnace, standard ductwork, suburban market.

  • Equipment: $4,200
  • Labor: $3,200
  • Permits/Taxes: $350
  • Total: $7,750

Assumptions: single-story, no extra ductwork, standard refrigerant charge.

Mid-Range — 17–18 SEER condenser, 90% AFUE furnace, minor duct modifications, suburban market.

  • Equipment: $6,200
  • Labor: $4,600
  • Permits/Taxes: $500
  • Total: $11,300

Assumptions: 1-story, minor duct adjustments, R-6 to R-8 duct insulation.

Premium — high-efficiency 20+ SEER, 95%+ AFUE, full duct redesign, two-story home, remote location.

  • Equipment: $9,500
  • Labor: $7,500
  • Permits/Taxes: $1,000
  • Total: $18,000

Assumptions: complex ductwork, extended refrigerant runs, extra warranties.

Additional & Hidden Costs

Potential extras include refrigerant recovery, coil replacement, zoning upgrades, or smart thermostat installation. Some homes require gas line work or venting modifications, which add to the project cost. Assumptions: mid-market builder, standard thermostat.

What Drives Price

Major drivers are equipment efficiency, system size compatibility, duct integrity, and local labor rates. The 5 ton reference is a common size for mid-to-large homes, but actual tonnage depends on load calculations. Assumptions: ACH50 or Manual J calculation used by contractor.

Ways To Save

Cost-saving strategies include selecting a proven mid-range SEER rating, bundling services with a single contractor, scheduling during off-peak season, and requesting bundled warranty options. Consider upgrading only essential components if maintenance needs allow.