A furnace and air conditioner combo purchased through Home Depot commonly costs about $5,000-$12,000 installed, with an average near $8,000 for a standard replacement. The final quote depends on home size, equipment efficiency and capacity, ductwork condition, local labor, and whether the installation includes removal, permits, or code updates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Matched furnace and AC equipment | $3,000 | $5,000 | $8,000 | Equipment only; capacity and efficiency affect price |
| Installed combo replacement | $5,000 | $8,000 | $12,000 | Typical existing-home replacement |
| High-efficiency or complex installation | $9,000 | $13,000 | $18,000+ | May include duct, venting, electrical, or code work |
| Typical installed rate | $4-$6 | $7-$10 | $11-$16+ | Approximate cost per home square foot; not a contractor quote |
What a Home Depot furnace and AC combo usually costs
Home Depot’s final price is generally tied to an in-home assessment and installation quote rather than a single nationwide package price. A basic replacement in a home with compatible ducts and utilities often falls near $5,000-$8,000; a midrange matched system with standard removal and setup commonly lands around $7,000-$11,000. Difficult access, equipment upgrades, or extensive duct repairs can push the project above $12,000.
For a rough comparison, a 1,500-square-foot home might need a 2- to 3-ton AC and a furnace in the approximate 60,000- to 80,000-BTU range, depending on climate, insulation, and heat loss. The equipment size should be determined by a load calculation, not square footage alone. Assumptions: existing central ducts, ordinary access, standard-efficiency equipment, and no major electrical or structural work.
A practical planning budget is $7,000-$11,000 for a conventional installed replacement, with a wider $5,000-$18,000 range for simpler or more involved jobs. Home Depot service availability and installation arrangements vary by location, so the written local quote is the price to compare.
How furnace, condenser, and installation charges appear in a quote
A combo price combines two major appliances with the work needed to connect and commission them. Quote formats differ: some show one installed package, while others list equipment and labor separately. Ask whether the price covers permits, old-unit removal, thermostat, refrigerant lines, condensate drainage, and startup testing.
| Quote component | Low | Average | High | Common scope |
|---|---|---|---|---|
| Gas furnace | $1,500 | $2,500 | $4,500 | Equipment; roughly 60,000-100,000 BTU |
| Central AC condenser and coil | $2,000 | $3,500 | $6,000 | Equipment; roughly 2-5 tons |
| Installation labor | $1,500 | $2,500 | $4,500 | Removal, setting, connections, startup |
| Permit and inspection | $100 | $300 | $800 | Local fees vary; may be billed separately |
| Removal and disposal | $100 | $250 | $500 | Existing furnace and outdoor equipment |
These component ranges are budgeting estimates, not amounts to add mechanically: installed package prices may bundle labor, delivery, and disposal, and equipment pricing can vary by brand and model. A matched indoor coil and outdoor condenser matter for performance and warranty eligibility.
Confirm what is included before comparing totals, because a lower equipment figure can exclude several thousand dollars of installation work.
Why tonnage, efficiency, and duct condition change the price
Cooling capacity is commonly priced by system size. A 2-ton system may suit a smaller, well-insulated home in a mild climate, while a 4- or 5-ton unit can cost more and may require larger ducts or electrical service. As a broad equipment-only comparison, a 2-ton AC package may run $2,000-$4,000, versus roughly $3,500-$6,500 for a 4-ton matched system. Correct sizing needs a professional load calculation.
Furnace efficiency is expressed as AFUE, or the share of fuel converted to usable heat. A basic 80% AFUE gas furnace can cost less than a 95%-98% model, which may require special venting and condensate drainage. Expect a high-efficiency upgrade to add approximately $500-$2,000 or more to equipment and installation, depending on the vent route and existing setup. In some homes, fuel savings can help offset the higher initial price, but payback depends on usage and local gas rates.
Ductwork can be a major swing item. Sealing or a small repair may cost $300-$1,500, while replacing substantial duct runs can add $2,000-$7,000 or more. A return-air opening that is too small, a long refrigerant-line run, or a furnace installed in a tight attic or crawl space can also increase labor. Capacity, efficiency, and duct compatibility should be checked together rather than priced as isolated upgrades.
What installation labor covers and how long crews need
A straightforward furnace-and-AC changeout often takes a two-person crew about 8-14 hours, commonly completed in one day. Labor may represent roughly $1,500-$4,500 of a typical installed quote, depending on local rates, crew size, access, and the amount of adaptation required. Some projects need a second visit for inspection or follow-up adjustments.
Labor usually covers disconnecting and removing old equipment, positioning the new furnace and outdoor condenser, connecting the coil and refrigerant lines, adapting gas and electrical connections, and testing operation. It may not cover major duct reconstruction, asbestos handling, upgraded circuits, a new condensate pump, or correction of unsafe venting. Those items should be listed as separate allowances or approved change orders.
For a rough labor cross-check, 16-28 combined crew-hours at $75-$150 per technician-hour implies about $1,200-$4,200 before unusual work or project overhead.
Ask for the expected crew size, work duration, and a written list of excluded tasks before scheduling.
How three home sizes translate into realistic installed quotes
Home size offers a starting point for comparing quotes, but climate, insulation, windows, ceiling height, and duct design can change the required capacity. These examples illustrate ordinary replacement scopes, not guaranteed equipment sizing or a Home Depot national price list.
| Example home and scope | Equipment assumption | Labor and extras | Illustrative total |
|---|---|---|---|
| 1,200 sq ft, simple replacement | 2-ton AC; 60,000-BTU furnace | 16-20 crew-hours; removal and basic permit | $5,500-$8,000 |
| 1,800 sq ft, standard replacement | 3-ton AC; 80,000-BTU furnace | 20-24 crew-hours; thermostat and minor duct sealing | $7,000-$10,500 |
| 2,600 sq ft, higher-efficiency upgrade | 4-ton AC; 95%+ AFUE furnace | 24-32 crew-hours; venting or electrical adaptation | $10,000-$16,000 |
The example totals assume a conventional gas furnace and central split AC system, typical regional labor, and no full duct replacement. Equipment brand, warranty terms, and local permit requirements can shift each range. Request the model numbers, capacities, and included work so estimates can be compared on equal terms.
A quote should explain the selected tonnage and furnace BTU capacity, not simply assign equipment based on floor area.
How regional labor and climate affect Home Depot installation quotes
Installed prices often run 10%-25% above a national-style midpoint in high-wage metro areas, places with costly permitting, or regions where contractor demand is high. Rural locations may have lower labor rates but higher travel or delivery charges; remote service can add about $100-$500. These are broad comparisons, and one town’s installer availability can matter more than its state average.
Climate also changes equipment needs. Hot, humid regions may require more cooling capacity or humidity-control features, while colder areas can favor higher furnace output and more attention to venting and freeze protection. Coastal conditions may increase interest in corrosion-resistant outdoor equipment. Rather than assume a fixed regional premium, compare at least two detailed local quotes with the same capacity, efficiency, and scope.
Home Depot’s installation pricing and available providers are local, and online equipment prices may not include professional installation. Taxes, delivery, and financing terms may also differ by jurisdiction and offer. Use local written installed estimates—not a national equipment listing—to set the project budget.
Which extras can add thousands to the combo price
Common additions include duct repair, a new thermostat, upgraded electrical service, condensate drainage, refrigerant-line replacement, and new venting. A basic programmable thermostat may add $100-$300 installed; a smart thermostat often adds $200-$600, depending on wiring and setup. Refrigerant lines may cost $300-$1,000 to replace, while a circuit or disconnect upgrade can add $300-$1,500.
Replacing duct sections can cost $25-$55 per linear foot in accessible areas, with concealed runs often costing more. A new return, register, or balancing work may add a few hundred dollars. Permit fees commonly range from $100-$800, while removal and disposal are often $100-$500 if not included. Hazardous-material testing or abatement is separate and can substantially change the project.
Warranty coverage deserves a line-by-line check. Manufacturer parts warranties may require registration and may exclude labor; extended labor coverage can add several hundred dollars or more. Compare duration, exclusions, service-call fees, and whether the installer or manufacturer handles claims. Separate necessary code or safety work from optional comfort upgrades in the estimate.
How to lower the installed price without undersizing equipment
Keep the project to a like-for-like replacement when the existing ductwork, venting, and electrical connections are safe and suitable. Do not downgrade capacity or skip a required code correction to cut the quote; instead, ask whether a simpler compatible model meets the load calculation. A standard-efficiency furnace and mid-tier AC may cost $1,000-$3,000 less than a premium high-efficiency pairing, though operating costs and venting needs should be weighed.
Prepare the work area by clearing access to the furnace, electrical panel, and outdoor unit. This does not replace professional handling, but unobstructed access can reduce setup time. Schedule before peak heating or cooling demand when local providers have more availability; avoid assuming seasonal discounts, and compare the full written price rather than a promotion headline.
Request two or three itemized bids with matching equipment specifications and scope. Ask whether removal, permits, thermostat, startup, refrigerant lines, and warranty labor are included. If only one part has failed, get a repair estimate and a replacement estimate; a repair can be economical for a relatively new system, while repeated major repairs on aging equipment may make replacement more practical.
The most dependable savings come from avoiding unnecessary upgrades, controlling scope, and comparing equivalent installed packages—not choosing a smaller or poorly matched system.