Most U.S. homeowners pay between $5,500 and $12,000 to replace both a furnace and central air, with final price driven by system size, efficiency, ductwork condition, and installation complexity. This article breaks down typical replacement cost and the main variables affecting the price for a combined furnace and central air replacement.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete furnace + AC replacement | $4,500 | $8,000 | $15,000 | Depends on size, SEER/AFUE, and ductwork |
| Furnace only | $1,800 | $3,800 | $7,500 | Mid-efficiency gas furnace typical |
| AC condensing unit + coil | $2,200 | $4,200 | $8,000 | 1.5–5 ton units |
| Ductwork repair/partial replacement | $800 | $3,000 | $8,000 | Leaky or undersized ducts increase cost |
Typical Furnace And Central Air Replacement Price For A 2,000 Sq Ft Home
Assumptions: 2.5-ton AC, 80k–100k BTU furnace, basic ductwork, suburban U.S. access.
Expect a combined total of roughly $6,000-$10,000 for a standard replacement in this scenario.
Low: $4,500 assumes affordable mid-efficiency units (80% AFUE furnace, 13–14 SEER AC), simple swap, and no major ductwork. Average: $8,000 factors mid-to-high efficiency units (90%+ AFUE, 15 SEER), new indoor coil, and typical labor. High: $12,000-$15,000 includes high-efficiency HVAC (95%+ AFUE, 18–20 SEER), permit fees, and moderate duct replacement or line-set replacement longer than 25 ft.
Line-Item Pricing: Materials, Labor, Equipment, Permits, Delivery/Disposal
This table shows the major quote parts contractors itemize and typical ranges for each.
| Materials | Labor | Equipment | Permits | Delivery/Disposal |
|---|---|---|---|---|
| $3,000-$9,000 (units, coils, filters) | $1,000-$3,500 () | $0-$800 (Hoists, lift, crane if needed) | $0-$600 (local permit/inspection) | $100-$600 (old unit disposal, refrigerant recovery) |
How System Size, SEER Rating, And BTU Change The Final Quote
System capacity and efficiency are among the largest price drivers: each 1-ton step up adds about $800-$1,500 to AC materials and installation costs.
Examples of numeric thresholds: upgrading from 2.5 to 3.5 tons typically raises AC material+labor by $1,200-$2,000. Moving from 14 SEER to 18 SEER commonly adds $1,000-$2,500. For furnaces, increasing from 80% AFUE to 95% AFUE can add $700-$1,800 depending on model and venting changes.
Ductwork Condition, Run Length, And Access That Affect Quotes
Poor ductwork or long refrigerant line runs can turn a basic swap into a major expense.
Contractors commonly add $800-$3,000 for partial duct repair or sealing. Full duct replacement for a 2,000 sq ft home ranges $3,000-$8,000. If the new outdoor unit requires a line set longer than 25 linear feet, expect $150-$400 extra per additional 10 ft and possible refrigerant surcharge.
Practical Ways To Lower The Replacement Price Without Sacrificing Safety
Controlling scope and timing reduces cost: choose matched coil+condensing unit, replace both units together, and schedule installs off-peak season.
Specific tactics: accept mid-efficiency models instead of premium SEER, bundle furnace and AC replacement to reduce labor markup, prepare the site (clear access, remove obstacles), and get 3 written quotes with itemized line items to compare. Doing basic pre-inspection repairs (like fixing attic access or electrical issues) yourself can shave $200-$700 off labor.
How Regional Prices Vary Across The U.S. For Combined Replacement
Expect regional deltas: urban Northeast/West Coast pricing can be 10%-30% higher than Midwest and parts of the South.
Typical multipliers: Midwest baseline. Northeast: +10%-25%. West Coast/urban California: +15%-30%. Rural areas: -5%-10% but with possible travel minimums. These percentages affect labor and sometimes permit fees more than equipment MSRP.
Installation Time, Crew Size, And Typical Labor Rates To Budget
A standard replacement crew takes 8-14 hours; plan for a two-person crew and base labor rates of $75-$125 per hour per tech.
Typical labor math: 10 hours × 2 techs × $95/hr average = $1,900. Complex installs requiring crane, extra hookup, or electrical panel upgrades can require 16-30 hours and a larger crew, raising labor to $2,500-$6,000.
Common Add-Ons And Extra Fees That Often Appear On Quotes
Expect separate charges for refrigerant recovery, electrical upgrades, condensate pump, thermostat upgrade, and old unit disposal.
Typical add-on ranges: refrigerant recovery $150-$350, electrical circuit or subpanel $400-$1,200, smart thermostat $150-$350 installed, condensate pump $120-$400, and minimum trip/out-of-pocket or diagnostic fees $75-$250. Factor these into total budget planning.