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Lennox Evaporator Coil Replacement Cost – Adnan Painting and Remodeling
Published: 2026-06-30T08:00:44+00:00 • 3 min read

Homeowners typically pay a wide range for Lennox evaporator coil replacement, driven by coil type, compatibility with existing equipment, and labor time. The price reflects coil price, labor, and potential diagnostic work. This article provides practical estimates in USD and outlines factors that influence cost, with clear low–average–high ranges.

Item Low Average High Notes
Installed Cost (coil replacement) $1,100 $1,800 $2,800 Assumes standard Lennox coil in a mid-range system
Coil Price (Lennox model) $350 $700 $1,200 Residential evaporator coil price varies by model and tonnage
Labor $450 $700 $1,200 Includes removal, replacement, and testing
Diagnostics/Service Call $0 $100 $250 Waived with full replacement appointment in some shops
Permits/Code Checks $0 $0 $0 Typically not required for single-family homes

Overview Of Costs

Typical project ranges for Lennox evaporator coil replacement span about $1,100 to $2,800, with most projects landing in the $1,500 to $2,100 area. Costs depend on coil compatibility, tonnage, refrigerant lines, and whether any components like a condensate pan or switch need upgrading. Assumptions: region, specs, labor hours.

Cost Breakdown

Materials Labor Equipment Permits Delivery/Disposal Warranty Taxes
$350–$1,200 $450–$1,200 $50–$150 $0 $20–$60 Lifetime on parts sometimes; labor warranty 30–90 days 5–9%

What Drives Price

Coil type and tonnage are primary drivers. A Lennox single-stage vs. two-stage coil can shift price by hundreds. data-formula=”labor_hours × hourly_rate”> Labor time depends on accessibility, coil location, and refrigerant line routing. Other drivers include coil diameter, tube pitch, and compatibility with existing air handler components.

Ways To Save

Shop multiple quotes from Lennox-certified installers to compare coil pricing and labor. Some regions offer off-peak scheduling that lowers labor costs. Routine maintenance before a failure can reduce diagnostic charges. Avoid unnecessary upgrades in the same visit unless upgrading improves efficiency.

Regional Price Differences

Prices vary by market. In the West region, expect higher labor rates and coil availability may affect the total. The Midwest often presents mid-range pricing with broad coil options. In the South, access to service techs is typically strong, but parts cost can be influenced by humidity-related wear. Overall, regional adjustments can swing total cost by about ±15–25% from the national average.

Labor & Installation Time

Labor ranges from 3 to 8 hours depending on system access and refrigerant line work. A typical project includes removing the old coil, installing the Lennox coil, testing airflow and refrigerant pressures, and ensuring proper thermostat communication. A brief diagnostic check is often bundled into the service rate. Assumptions include standard residential ductwork and typical Lennox coil model.

Additional & Hidden Costs

Hidden items to watch for include upgrading air handler contactors if parts are failing, new condensate pan if corrosion is present, and potential refrigerant recharges if the coil is leaky. Some contractors add a small trip or mileage fee. If a warranty replacement is required outside standard coverage, expect higher out-of-pocket costs.

Real-World Pricing Examples

  1. Basic — Coil replacement for a 2-ton Lennox system with standard coil; labor 4 hours; coil price $500; total around $1,350.
  2. Mid-Range — 2.5–3 ton system; two-stage coil; labor 5 hours; coil $800; total around $1,900.
  3. Premium — 3–3.5 ton system; high-efficiency coil; labor 7 hours; coil $1,200; total around $2,800.

Assumptions: region, specs, labor hours.