Dave Lennox Signature Collection prices vary by equipment type, capacity, efficiency, and installation scope. A premium central air conditioner commonly costs $12,000-$24,000 installed, while a complete Signature heat pump or furnace-and-air-conditioning system can run higher when it includes matched communicating equipment and ductwork changes.
The ranges below reflect typical U.S. contractor pricing, not a manufacturer-set retail price; local quotes depend on home size, labor rates, and existing system condition.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Signature central air conditioner | $12,000 | $17,500 | $24,000 | Installed, matched indoor coil and outdoor unit |
| Signature heat pump system | $15,000 | $22,000 | $32,000 | Installed; higher with major electrical or duct work |
| Signature gas furnace | $6,000 | $9,000 | $14,000 | Furnace replacement, not a full dual-fuel system |
| Matched furnace and air conditioner | $17,000 | $25,000 | $38,000 | Complete premium system; scope drives upper range |
| Communicating thermostat | $500 | $900 | $1,500 | Equipment and setup, when not included |
A like-for-like Signature air-conditioner replacement often requires a two- or three-person crew for about 6-10 hours. A furnace and AC changeout may take 8-14 hours, especially when the contractor must coordinate refrigerant, gas, venting, and controls. New construction, difficult access, or equipment relocation can extend the schedule to multiple days.
Labor and commissioning commonly account for $2,000-$6,000 of a standard premium replacement. The crew must remove old equipment, connect and pressure-test refrigerant lines, verify airflow, configure controls, and check heating or cooling operation. A contractor should not skip startup measurements to make a low labor allowance work.
Clarify whether the labor price includes hauling away the old unit, protecting floors, cleanup, and return visits for setup. If the system is being relocated, ask whether the estimate includes line-set routing, drain extensions, a pad, and electrical work. Labor surcharges for roof access, crawl spaces, or tight attic conditions are usually tied to extra crew time rather than the brand itself.
Warranty terms also deserve scrutiny. Equipment warranties generally depend on registration and model-specific conditions; labor coverage may be separate and offered by the installing contractor. A long parts warranty does not necessarily cover diagnostic visits, refrigerant, or labor after the installer’s workmanship period ends.
Signature pricing compared with Lennox Elite and Merit
Signature Collection equipment generally sits above Lennox Elite and Merit in price, with more premium configurations and communicating options available in some product lines. For a comparable installed air-conditioning replacement, Elite systems may be roughly $2,000-$6,000 less than Signature, while Merit systems can be $4,000-$9,000 less. Exact differences depend on capacity, efficiency, controls, and local dealer pricing.
Compare matched capacity and system configuration, not just the collection name. A high-efficiency Elite model may have a higher price than a basic Signature configuration, and a quote for only an outdoor unit cannot be compared fairly with one that includes a new coil, thermostat, and labor.
A lower-tier option can be a sensible way to reduce upfront cost if the home does not need advanced zoning or variable operation. It should still be sized correctly and matched with the indoor equipment. Ask the contractor to price at least one alternative configuration, then compare total installed price, estimated efficiency, warranty coverage, and the specific comfort feature being purchased.
Repair may also cost less than replacement when a system is relatively new and the failure is limited. A diagnostic visit may cost $100-$250, with repair bills ranging from about $250 to $2,000 depending on the part. A compressor or major coil failure can exceed $2,000-$5,000, making a replacement quote worth comparing, particularly for older equipment with recurring breakdowns.
Regional labor rates change the installed price
Regional differences reflect contractor wages, local demand, permitting, and access to equipment. Compared with a broad U.S. midpoint, premium installations may run about 10%-25% higher in costly coastal metros and dense northeastern cities. Smaller cities and lower-cost rural markets may come in 5%-15% below that midpoint, though fewer nearby dealers can sometimes reduce competition.
Use the regional adjustment as a reasonableness check, not as a substitute for local bids. A $20,000 system in a high-cost metro may be comparable to a $17,000-$18,000 installation elsewhere if both include the same equipment and scope. Prices can differ within one state, especially between urban labor markets and remote areas with travel or delivery charges.
Climate also changes the value of equipment choices. In hot regions, long cooling seasons can strengthen the case for higher-efficiency air conditioning. In colder areas, heat-pump performance at low outdoor temperatures and backup heat type matter; a cold-climate model or dual-fuel setup may raise upfront cost by $2,000-$6,000 compared with a basic heat pump configuration.
Permits and utility incentives are location-specific. A local rebate could reduce the net cost by several hundred dollars or more for qualifying equipment, but eligibility may require a specific efficiency level, contractor, or application deadline. Treat incentives as a possible offset rather than subtracting them from the quote until eligibility and payment timing are confirmed.
Three installed quotes for common Signature projects
These examples show how scope can change the total even when all projects use premium Lennox equipment. They are illustrative budgets, not fixed national prices; local bids can differ with model availability and contractor overhead.
| Project | Equipment and labor | Added work | Estimated total | Unit reference |
|---|---|---|---|---|
| 2.5-ton AC replacement | $14,800 | $700 permit and disposal | $15,500 | About $6,200 per ton |
| 4-ton AC with coil and controls | $19,300 | $1,200 line-set and electrical work | $20,500 | About $5,125 per ton |
| 3-ton heat pump and air handler | $22,000 | $3,000 electrical and duct changes | $25,000 | About $8,333 per ton |
The third example costs more per ton because it includes electrical and duct changes, not simply because of capacity. The 2.5-ton example assumes an uncomplicated changeout with existing compatible ductwork and no major line-set reroute. The 4-ton example includes additional work that may not be needed in every home.
The heat-pump example assumes a matched indoor air handler and conventional electrical service upgrades, with no whole-house duct replacement. A gas furnace backup, zoning, or a cold-climate configuration could shift the total. For each proposal, request equipment model numbers, labor scope, permit charges, disposal, and the price of any optional upgrades as separate lines.
Lower the Signature quote by controlling the scope
Keep the project limited to necessary work, but do not remove steps that protect performance or code compliance. If existing ducts are in good condition, ask for test results before agreeing to a full replacement. If only a short duct section needs repair, request a targeted price rather than a broad allowance. The same applies to electrical work: the estimate should explain why a service or circuit change is required.
Get three itemized quotes for the same capacity, efficiency tier, and matched components. Compare model numbers, thermostat, permit, disposal, line-set work, commissioning, and warranty terms. If one bid is much lower, ask what it excludes; if one is much higher, ask which specific upgrade accounts for the difference.
Consider a less expensive matched configuration before dropping necessary installation work. A single-stage or lower-efficiency option may reduce the initial bill by $1,000-$4,000, depending on the comparison. Avoid paying for zoning, premium controls, or a capacity increase unless a load calculation or comfort problem supports it. The right choice depends on the expected use and local energy costs.
Scheduling during a contractor’s less-busy period may improve appointment availability, though discounts are not guaranteed. Replacing equipment before a failure can also allow time to compare bids rather than paying for emergency service. Do not choose solely by the lowest total: an incorrect size, incomplete commissioning, or unclear labor warranty can create expenses that outweigh the initial savings.
Finally, verify rebates and financing fees separately from the equipment quote. A promotional payment plan can include charges that increase the total, and a rebate may arrive after the installation. Compare the cash price, financed amount, and expected incentive as distinct figures so the true out-of-pocket cost is clear.