Furnace and Air Conditioner Prices: Cost of Heating and Cooling Systems in the U.S. 2026
Homeowners typically pay for a furnace and central air conditioner combined, with costs driven by unit efficiency, system size, installation complexity, and regional labor. This article lays out cost ranges in USD, including per-unit pricing and common price drivers for furnace and air conditioner bundles.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Furnace (gas, 80-90% AFUE, 100k BTU) | $2,500 | $3,800 | $5,200 | Includes basic installation in midwest |
| Furnace (gas, 95%+ AFUE, 120k BTU) | $3,200 | $4,900 | $6,800 | Higher efficiency impacts venting and wiring |
| Air Conditioner (13- to 16-SEER, 3-ton) | $3,200 | $4,900 | $7,100 | Standard outdoor unit with basic thermostat |
| Air Conditioner (18-SEER, 4-ton) | $4,500 | $6,200 | $9,000 | Higher efficiency, premium refrigerant handling |
| Combination install (furnace + AC, standard) | $6,800 | $9,900 | $14,500 | Typical midrange package in suburban markets |
| Labor Only (installation) | $1,500 | $3,000 | $5,000 | Assumes typical attic/ crawlspace access |
Cost Drivers For Furnace And Air Conditioner Bundles
Assumptions: Midwest labor rates, standard 80- to 90-percent AFUE furnace, midline 14-SEER AC, standard ductwork, and normal access. The total price reflects equipment plus installation, not permit fees.
Major Quote Components In A Typical Bundle
| Component | What Influences Cost | Typical Range | Per-Unit Basis | Notes |
|---|---|---|---|---|
| Furnace Equipment | AFUE rating, BTU size, brand | $1,800-$5,000 | Fixed price per unit | Higher efficiency or larger capacity increases cost |
| Air Conditioner | SEER rating, tonnage, outdoor unit vs. heat pump | $2,000-$7,000 | Fixed price per 1.5–5-ton unit | Inverter vs. fixed-speed affects efficiency |
| Labor & Installation | Access, duct modifications, electrical work | $1,500-$5,000 | Hourly or fixed project | Attic or crawlspace access can raise cost |
| Ductwork & Venting | Existing duct condition, size, repairs | $1,000-$4,000 | Per system | Leads to improvements in efficiency |
| Permits & Inspections | Local requirements, complexity | $100-$700 | Fixed | Some regions include permit in contractor price |
| Diagnostics & Fees | Initial inspection, refrigerant check | $75-$250 | Fixed | Waived with full installation |
Two Key Price Levers: System Type And Home Size
System Type and size drive most of the price gap. A midrange 2.5–3-ton 14-SEER AC paired with an 80–90 AFUE gas furnace often sits in the $6,000 to $9,500 range installed, while upgrades to 95%+ AFUE and 18-SEER units push toward $9,000 to $14,500 for the bundle. In larger homes (4 tons or more) or homes in harsh climates, expect higher costs, especially if ductwork requires substantial modification.
Region Differences In Furnace And AC Pricing
Prices vary by market, with higher costs in coastal cities and Western states due to labor rates and permitting. Midwest markets often show lower installed prices. A typical 2-stage furnace or variable-speed air handler can add $500–$1,500, depending on access and electrical upgrades.
Labor Consider: How Crew Size And Time Affect Price
Labor often accounts for a large portion of the total. A two-person crew for a standard install may take 1–2 days; a more complex job can exceed 3–4 days. Typical hourly rates range from $75 to $125, depending on region and skill level.
Concrete Example: A Real-World Budget Scenario
Scenario A uses a midrange 3-ton 14-SEER AC with a 90% AFUE gas furnace in a suburban climate. Equipment cost: $5,500; installation: $3,000; ducts: $1,800; permits: $200. Total range: $9,000–$11,500.
How To Reduce Price Without Sacrificing Reliability
Scope control and timing can cut costs. If the current ductwork is in good shape, avoid a full duct remodel. Scheduling during off-peak seasons reduces labor rates. Choosing a midrange 13–16 SEER system instead of top-tier 18-SEER lowers cost without dramatically impacting comfort in many homes.
Cost Comparisons By Scenario: Replacement vs. Repair Or Reuse
In some cases, repairing an existing furnace and adding a filter upgrade can be far cheaper than full replacement. A replacement bundle often costs $8,000–$12,000 for standard homes, whereas a targeted repair and component upgrade may stay under $2,500 if the heat exchanger remains sound and ductwork is intact.
Unit-Based Pricing: Per Ton And Per SEER, Practical View
Air conditioner pricing commonly shows per-ton and per-SEER differences. A 3-ton unit at 14-SEER may cost $2,000–$3,000 for the outdoor portion, with the indoor air handler and installation pushing the total higher. An 18-SEER unit commonly costs $5,000–$7,000 installed for the same tonnage. Assumptions: standard refrigerant, refrigerant charge included
Regional Price Snapshot For Common Bundles
- Midwest suburban home: 2.5–3-ton AC + 90% AFUE furnace = $8,500–$11,500 installed.
- Coastal city home: 3–4 ton 16–SEER + 95% AFUE = $9,500–$14,000 installed.
- Rural market: 2-ton basic setup = $6,000–$9,000 installed.
Maintenance Considerations And Long-Term Costs
Annual maintenance reduces failure risk and extends life. Expect service plans priced at $150–$300 per visit, or $300–$600 per year for comprehensive coverage. Energy efficiency gains from higher SEER typically repay in energy savings over 7–12 years, depending on usage and electricity rates.