Published ranges put leak repair at about $200 to $1,500, an R-410A recharge at about $100 to $320, and an R-22 recharge at about $180 to $600. An expansion valve (TXV) runs about $200 to $600 and an evaporator coil $1,000 to $4,500. A recharge without finding the leak is only a temporary fix.
Technical Consideration
Typical refrigerant-related repair costs
| Repair | Typical range |
|---|---|
| Refrigerant recharge (R-410A) | $100 – $320 |
| Refrigerant recharge (R-22) | $180 – $600 |
| Leak search and repair | $200 – $1,500 |
| Expansion valve (TXV) | $200 – $600 |
| Evaporator coil replacement | $1,000 – $4,500 |
Published U.S. ranges for planning only, not Wilmington quotes. Your written price depends on diagnosis, access, equipment, permits, and timing. Sources: HomeGuide – AC repair cost (Aug 2025); HVAC.com – heat pump repair costs.
Why is a leak check expensive?
Finding a leak can take hours with electronic detectors, dye, bubble tests, or nitrogen pressure testing, especially in coils hidden inside air handlers.
Ask what method will be used and whether the leak search price is separate from the repair.
Does low refrigerant always mean a leak?
Yes, in almost every case. Refrigerant is not used up like fuel.
The only exception is an undercharge from a previous installation or service. A system that needs refrigerant every season has a leak.
What changed with R-410A in 2026?
New residential systems made since January 1, 2025 use lower-GWP refrigerants such as R-454B or R-32. EPA’s 2026 final rule lets contractors keep installing R-410A equipment made before 2025 until existing supplies run out.
R-410A remains available for servicing existing systems, but its production is being phased down, which can raise recharge prices over time.
When does a leak mean replace instead of repair?
Consider replacement when the leak is in the evaporator coil of a 12- to 15-year-old system, when the system uses R-22, or when leaks keep returning.
Ask for both prices: coil replacement versus a new matched system.
Related services in Wilmington
- AC Repair in Wilmington, DE
- AC Installation & Replacement in Wilmington, DE
- Heat Pump Repair in Wilmington, DE
Local verification resources
Before authorizing work, use the Delaware license lookup. For projects that may require approval, consult the City of Wilmington permit information or the authority serving the property.