Lennox TXV valve replacement cost varies with unit type, refrigerant, and installer rates; most homeowners pay between $250 and $750. The main drivers are the TXV part price, diagnostic/service fee, and labor to access and braze the refrigerant line.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete Replacement (single indoor coil) | $250 | $450 | $750 | Assumptions: residential split system, R-410A, easy access. |
| TXV Cartridge/Assembly | $40 | $120 | $300 | OEM vs aftermarket, model-specific. |
| Labor & Service Call | $150 | $260 | $500 | Assumptions: 1-3 hours, $75-$125 per hour. |
| Recovery, Evacuation & Recharge | $60 | $180 | $400 | Depends on refrigerant amount and local disposal fees. |
Typical Total Price To Replace a Lennox TXV Valve
For a standard residential Lennox split system (single indoor coil), total replacement price typically runs $250-$750 including parts, labor, and refrigerant handling.
Expect $40-$300 for the TXV part, $150-$500 for labor/service, and $60-$400 for refrigerant recovery and recharge depending on refrigerant type and volume.
Assumptions: Midwest labor rates, straightforward access, single-story home, common Lennox valve models.
Parts, Labor, and Disposal Cost Breakdown
| Materials | Labor | Equipment | Delivery/Disposal |
|---|---|---|---|
| $40-$300 (TXV cartridge or assembly, fittings, brazing rods) | $150-$500 (1-4 hours at $75-$125/hr) | $20-$150 (vacuum pump rental, manifold gauges) | $60-$200 (refrigerant recovery, disposal fees) |
Most quotes separate parts, labor hours, and refrigerant handling as distinct line items on an invoice.
How TXV Size, Model, and Refrigerant Change Price
Higher-capacity or specialty TXVs for rooftop or commercial Lennox units cost more; small residential TXV cartridges are cheapest. Replacement price rises if the valve is integrated into a costly coil assembly.
If the job requires replacing the coil or a factory-sealed valve assembly, expect $600-$1,500 or more versus $250-$450 for a cartridge swap.
Numeric thresholds: valves for systems under 2 tons typically add $40-$150 for parts; valves for 3 tons and above or OEM assemblies add $150-$600. Refrigerant type matters: R-22 jobs often exceed $500 for recharge and handling, while R-410A jobs typically add $60-$300.
Ways Homeowners Can Reduce Replacement Price
Control scope: request a parts-only quote if certified to do brazing, schedule during off-peak seasons, and allow technician access to avoid extra removal time. Choose aftermarket TXV cartridges when compatible.
Providing clear access to the indoor coil and consolidating HVAC service visits can cut labor and trip fees by 20%-40%.
Other tactics: get 3 written quotes, keep the existing refrigerant when legal and feasible, and skip optional upgrades like premium brass fittings unless necessary.
Regional Price Differences Across U.S. Markets
Prices vary by region: expect 10%-25% higher labor and service fees in urban Northeast and West Coast markets versus Midwest and South. Parts costs are more consistent but can be 5%-15% higher in remote areas.
Estimate a regional multiplier: Midwest baseline, +15% for coastal metro areas, +10%-20% for high-demand summer months.
| Region | Typical Total Price | Multiplier vs Midwest |
|---|---|---|
| Midwest | $300-$500 | Baseline |
| Northeast (urban) | $350-$650 | +15%-25% |
| South / Sun Belt | $280-$520 | +0%-10% |
| West Coast | $360-$700 | +15%-25% |
Example Quotes For Three Real Jobs
| Scenario | Specs | Labor Hours | Parts | Total |
|---|---|---|---|---|
| Small split, easy access | 1.5-ton, R-410A, cartridge swap | 1.0 | $80 | $280 ($80 parts + $150 labor + $50 recharge) |
| 3-ton attic coil, limited access | 3-ton, OEM valve assembly, extra removal | 3.5 | $320 | $920 ($320 parts + $350 labor + $250 recharge/disposal) |
| R-22 high-side reclamation | 2-ton, R-22, legal recovery required | 2.5 | $120 | $640 ($120 parts + $225 labor + $295 recovery/recharge) |
These real-job examples show how access, tonnage, and refrigerant type cause wide total price swings.
Labor Time, Crew Size, and Service Call Fees
Typical labor: 1-4 hours for residential TXV replacement; most jobs use a single technician, large rooftop or commercial work may need two. Service call fees range $75-$150 and are often folded into the labor line.
Expect $75-$125 per hour for a certified HVAC tech and a service call fee of $75-$150 when a diagnostic visit is separate from the repair.
Assumptions: single certified technician, standard residential service truck, no crane or scaffold required.