The Lennox Ultimate Comfort System cost typically ranges from mid to high depending on system size, SEER rating, furnace capacity, and installation complexity. Buyers commonly pay between $8,000 and $18,000 for a full replacement in an average U.S. home; this article breaks down realistic pricing, per-unit rates, and major drivers so readers can compare quotes.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete Lennox Ultimate Comfort System | $7,500 | $12,000 | $18,500 | Assumptions: 1.5–2.5 ton AC, 80k–100k BTU furnace, standard ducts, suburban install. |
| Air Conditioner (outdoor) | $3,000 | $4,500 | $7,000 | $/unit for 1.5–3 ton, includes basic condenser. |
| Furnace (indoor) | $1,800 | $3,200 | $5,500 | $/unit for 80k–120k BTU, mid-efficiency to high-efficiency. |
| Installation Labor | $1,200 | $2,300 | $4,500 | Assumptions: Standard access, 8–18 hours. |
Typical Price for a Lennox Ultimate Comfort System for a 2,000 sq ft Home
For a 2,000 sq ft single-family home, the total Lennox Ultimate Comfort System price is commonly $9,000-$15,000 installed when using matched Lennox outdoor unit, premium furnace, and basic zoning or air quality add-ons.
Average buyers in suburban markets should budget about $12,000 for a full system swap in this scenario.
Assumptions: 2.5 ton AC, 95k BTU furnace, one HVAC register system, moderate attic access.
Cost Breakdown: Materials, Labor, Equipment, and Permits
| Component | Materials | Labor | Equipment | Permits |
|---|---|---|---|---|
| Outdoor Condenser | $2,800-$6,500 | $200-$600 | $100-$300 | $0-$100 |
| Furnace | $1,700-$5,000 | $400-$900 | $50-$150 | $0-$75 |
| Ductwork (repairs) | $300-$2,500 | $800-$2,000 | $0-$100 | $0 |
| Zoning/Controls | $400-$2,200 | $300-$1,000 | $0-$50 | $0-$50 |
| Air Cleaner/Humidifier | $200-$900 | $150-$400 | $0 | $0 |
Materials account for the largest single share, but labor and ductwork can swing the total by thousands.
How SEER Rating, Furnace BTU, and Zoning Add-On Change the Quote
Moving from a 14 SEER to a 20+ SEER Lennox outdoor unit typically raises equipment price by $1,500-$3,500 and may add $300-$800 in labor for CO₂ refrigerant handling or different coil matches.
Increasing furnace capacity from 80k BTU to 120k BTU can add $800-$2,000 to equipment cost and may require larger ducts.
Adding two-zone motorized dampers and control panels usually costs $1,000-$2,200 extra installed; each additional zone beyond two is commonly $400-$800 per zone.
How to Reduce the Lennox Ultimate Comfort System Price Before Signing
Opt for a matched but lower SEER condenser, keep the existing duct layout when possible, and schedule replacement in shoulder seasons to lower labor surcharges. Getting three detailed quotes reduces the chance of overpriced add-ons.
Request itemized quotes that separate equipment, ductwork, permits, and controls to identify negotiable items.
Tip: Repairing select duct sections ($300-$1,000) instead of full replacement ($3,000-$8,000) often reduces total expense.
Regional Price Differences: Metro, Suburban, and Sun Belt Examples
| Region | Typical Range | Average |
|---|---|---|
| Northern Metro (high labor) | $10,500-$18,500 | $13,800 |
| Suburban Midwest | $8,000-$13,500 | $10,900 |
| Sun Belt (hot climate) | $9,200-$16,000 | $12,400 |
| Rural Areas | $7,500-$12,000 | $9,500 |
Expect 10%–30% higher totals in dense metro markets or areas with high permit and trade rates.
Typical Installation Time, Crew Size, and Hourly Rates
A standard Lennox Ultimate Comfort System swap takes 1-3 days, 2-4 technicians, and 8–24 labor hours depending on ductwork and zoning complexity.
HVAC tech rates typically run $75-$125 per hour; specialty permits or electrical work can be $50-$120 extra per hour.
Assumptions: Single-family home, normal access, no structural changes.
Three Real-World Quote Examples With Specs, Hours, and Totals
| Example | Specs | Labor Hours | Total Price |
|---|---|---|---|
| Budget Replace | 2.0 ton AC, 80k BTU furnace, no ductwork | 10 hrs | $7,500 |
| Typical Install | 2.5 ton AC (16 SEER), 95k BTU high-eff furnace, minor duct repairs | 16 hrs | $12,200 |
| Premium Package | 3.0 ton AC (20 SEER), 110k BTU modulating furnace, 3-zone controls, new ducts | 30 hrs | $18,300 |
These examples show how equipment grade and duct/zoning work are the biggest cost multipliers.