A full HVAC system costs about $7,000-$16,000 installed for many U.S. homes, with an average near $11,000. A larger or more complex replacement can exceed $25,000; equipment type, home size, ductwork, efficiency, and local labor rates drive the quote.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete system installed | $7,000 | $11,000 | $25,000+ | Typical replacement; high end may include premium equipment or ductwork |
| Central AC and furnace | $7,000 | $12,000 | $22,000 | Common split system configuration |
| Heat pump system | $8,000 | $14,000 | $25,000+ | Price varies by capacity and cold-weather features |
| Installed cost per square foot | $5 | $8 | $15+ | Rough budgeting measure, not a substitute for load sizing |
Typical installed price for a 2,000-square-foot home
For a 1,500-2,500-square-foot home with existing, usable ducts, a standard-efficiency furnace and central AC commonly total $8,000-$16,000 installed. A midrange, matched system often lands around $11,000-$13,000. A heat pump system for similar space typically costs $10,000-$18,000, while premium variable-speed equipment can push a complete project above $20,000.
These figures assume ordinary access, standard replacement work, and no major electrical or duct repairs. The required capacity depends on a professional load calculation, not square footage alone. Assumptions: typical U.S. labor rates, existing ducts in serviceable condition, and standard equipment. For a straightforward full replacement, $9,000-$15,000 is a useful initial budget range.
What furnace, AC, and installation add to the quote
Contractors may quote a combined system price, but itemizing equipment and work makes estimates easier to compare. Costs below are approximate installed or project charges; components can overlap in bundled quotes.
| Quote component | Low | Average | High |
|---|---|---|---|
| Furnace equipment and setting | $2,500 | $4,000 | $7,000 |
| Central AC equipment and setting | $3,000 | $5,000 | $9,000 |
| Labor, startup, and commissioning | $1,500 | $2,500 | $4,500 |
| Duct modifications or replacement | $500 | $2,500 | $8,000+ |
| Removal and disposal | $150 | $400 | $900 |
Equipment figures depend on capacity, brand tier, and whether the furnace and outdoor AC unit are replaced together. Labor includes removal, refrigerant handling, connection, testing, and setup. Duct condition is a major swing item: a basic repair may cost hundreds, while extensive replacement can add several thousand dollars.
How tonnage, efficiency, and duct condition change the price
AC capacity is commonly priced by ton. A 2-ton system may cost less than a 4-ton system, but oversizing can harm comfort and efficiency; a Manual J load calculation helps determine the correct size. As a rough installed comparison, standard equipment may run $3,500-$6,500 for AC alone at 2 tons and $5,000-$9,000 at 4 tons.
Higher-efficiency equipment, variable-speed blowers, and communicating controls add cost. A basic furnace may be 80% AFUE, while high-efficiency models reach 95%-98% AFUE and can cost $1,000-$3,000 more. AC efficiency and features also matter. Replacing damaged ducts, adding a return, or correcting inadequate airflow can change a simple swap into a larger project.
Why heat pumps and furnace-AC systems price differently
A heat pump provides heating and cooling through one outdoor unit, so its installed price is not directly comparable to a furnace-plus-AC package. Standard heat pumps often cost $8,000-$18,000 installed; cold-climate models, electrical upgrades, or backup heat can raise the total to $25,000 or more. In colder regions, a dual-fuel setup pairs a heat pump with a gas furnace and can cost more upfront than a basic split system.
Existing fuel lines, electrical service, and duct compatibility influence the conversion cost. A homeowner switching from a furnace may need a new thermostat, circuit work, or changes to the indoor air handler. Compare total installed scope and heating configuration, not just the equipment price or advertised starting figure.
How many labor hours does a complete replacement take?
A standard replacement with accessible equipment and usable ducts commonly takes a crew of two or three about 8-16 hours, often completed in one day. More involved work can take two or three days. HVAC labor rates vary, but contractor billing commonly works out to roughly $75-$150 per technician-hour before overhead, equipment, and warranty costs are considered.
Attic or crawlspace access, custom transitions, condensate routing, electrical changes, and duct repairs add time. A quote should identify whether startup testing, refrigerant charging, thermostat setup, and removal are included. A low labor estimate deserves scrutiny if it omits commissioning or assumes ductwork needs no inspection.
When ductwork, electrical work, or permits add expense
Duct sealing or minor repairs may cost $300-$1,500; replacing much of a home’s duct system can cost $3,000-$8,000 or more. A new dedicated circuit or panel work may add $500-$2,500, depending on the service and local electrician rates. Permits and inspections commonly add $100-$500, though local rules and project scope vary.
Removal fees, condensate pumps, new linesets, and equipment pads may appear as separate quote items. Refrigerant line replacement can add roughly $400-$1,500 when required by condition or equipment compatibility. Ask for each allowance in writing so an initially low bid does not grow through necessary add-ons.
Three replacement quotes for different home sizes
| Example scope | Labor and unit basis | Estimated total |
|---|---|---|
| 1,200-square-foot home, 2-ton AC and 60,000-BTU furnace, existing ducts | 2-person crew, 8-10 hours; standard efficiency | $7,500-$10,500 |
| 2,000-square-foot home, 3-ton AC and 80,000-BTU furnace | 2-3-person crew, 10-14 hours; midrange equipment | $10,000-$15,000 |
| 2,800-square-foot home, 4-ton heat pump with duct repairs | 3-person crew, 14-20 hours; cold-climate capable | $16,000-$25,000 |
Examples reflect broad installed estimates, not guaranteed bids. Climate, equipment sizing, local permit requirements, and the amount of duct work can shift totals substantially. Use the examples to check quote scope, then compare proposals that specify capacity, model numbers, included labor, and exclusions.
Ways to lower a full HVAC replacement quote
Request at least three itemized quotes based on the same load calculation and equipment tier. Compare warranty terms, labor coverage, startup testing, and duct allowances alongside the total. If the furnace or AC is relatively new and working well, ask whether replacing only the failed component is feasible; matched equipment requirements and warranty rules may limit that option.
Keep existing ducts when inspection confirms they are properly sized and sound. Choose a standard efficiency level if the energy savings from premium equipment do not justify its extra upfront cost, and avoid add-ons that are not tied to a documented comfort or code need. Clear scope, comparable bids, and verified duct condition are usually the most controllable ways to avoid overspending.