How much does an AC compressor cost?
How much does an AC compressor cost?
$1,800 – $2,800 average cost
Average AC compressor cost
AC compressor replacement costs $1,800 to $2,800 on average for parts and labor, but costs can exceed $3,000 for larger systems. The total cost to replace an air conditioner compressor depends on the AC unit brand and size, compressor type, refrigerant type, and local labor rates. Costs are lower if the part is still under warranty.
| National Average Cost | $2,300 |
| Minimum Cost | $1,000 |
| Maximum Cost | $5,200 |
| Average Range | $1,800 to $2,800 |
*Including parts and labor
AC compressor replacement cost factors
Several factors affect the cost to replace a home air conditioner compressor:
System size
The size of your air conditioning system directly impacts compressor replacement costs, with larger units requiring more expensive compressors and additional labor time. AC systems are measured in tons, which refers to their cooling capacity rather than actual weight.
The table below shows the average cost to replace an AC compressor for various system sizes.
| AC size (tons) | Average compressor replacement cost* |
|---|---|
| 1.5 | $1,500 – $2,000 |
| 2 – 2.5 | $1,800 – $2,200 |
| 3 – 3.5 | $2,000 – $2,600 |
| 4 – 4.5 | $2,200 – $2,800 |
| 5+ | $2,500 – $3,500+ |
*Including parts and labor
Compressor type
There are several types of compressors, each offering a different level of efficiency and performance:
Single-stage compressors operate at one speed and run at full capacity until the indoor temperature hits the set range. They are the least efficient but most affordable option.
Two-stage compressors can run at two different speeds, providing better temperature control and energy efficiency but at a higher cost.
Variable-speed compressors offer the most precise temperature control and maximum energy efficiency, but they are the most expensive type.
Refrigerant
The type of refrigerant your system uses significantly impacts compressor replacement costs. Replacing the compressor in an older system that uses R-22 (Freon) refrigerant can cost more than $5,000.
R-22 is no longer produced in the United States, making it increasingly expensive and difficult to obtain. Systems that use newer refrigerants like R-32 or R-454B have lower operating costs, more readily available replacement parts, and lower costs for AC repairs that require refrigerant.
Warranty
Warranty coverage dramatically affects out-of-pocket expenses for compressor replacement. Most compressors come with manufacturer warranties ranging from 5 to 12 years. If your compressor fails within the warranty period, you may only pay for labor costs.
Labor
Labor costs vary significantly based on geographic location. HVAC companies in areas with a higher cost of living often charge higher rates.
The complexity of the installation also affects the labor time and total cost. Most compressor replacements require 4 to 8 hours of work by a certified HVAC technician. Accessing the compressor in tight spaces, running new refrigerant lines, or updating electrical connections increases labor hours.
Season
Seasonal demand affects pricing for both parts and labor. AC repairs are in peak demand during summer months, often resulting in higher costs and longer wait times for service. Some companies offer lower prices in late fall and early spring.
Signs your air conditioner compressor is bad
Look for these signs that your AC compressor needs to be replaced:
Compressor won't start: Clicking sounds, repeated startup attempts, or circuit breakers tripping
Warm air from vents: System runs but fails to cool the home effectively
Strange noises: Grinding, squealing, banging, or rattling sounds from the outdoor unit
Electrical issues: Blown fuses, tripped breakers, or burned wiring near the compressor
Higher energy bills: Increased electricity costs without changes in usage patterns
Ice formation: Frost buildup on evaporator coils or refrigerant lines
No response: System completely fails to start when the thermostat calls for cooling
Before replacing the compressor or entire AC system, have a licensed HVAC technician inspect the unit for other problems. An AC inspection costs $150 to $500 on average and may reveal a less expensive issue to repair, since compressor failure symptoms often mimic other problems.
Should I replace the compressor or the whole AC unit?
Because AC compressor replacement is so expensive, it's sometimes more cost-effective to replace the whole AC unit instead. However, if the unit is still under warranty, most HVAC technicians recommend replacing just the compressor.
Consider full AC replacement if:
The compressor is no longer under warranty.
The AC unit is more than 10 years old.
The unit has a history of other problems.
The repair cost is 50% or more of the price of a new AC unit.
Home AC compressor FAQs
What does an AC compressor do?
The AC compressor is located in the outdoor unit and acts as the heart of your air conditioning system, pressurizing refrigerant and maintaining the continuous cycle that removes heat from indoor air. Without a functioning compressor, the entire cooling process stops, leaving your home without air conditioning.
How long does an AC compressor last?
An AC compressor lasts 10 to 15 years on average, depending on the usage and local climate. In the southern U.S., a compressor may last only 8 to 10 years due to warmer temperatures and heavier usage.
Routine maintenance, clean coils, regular filter replacement, and keeping the outdoor unit clean and free of debris can prolong the compressor's lifespan.
Is it worth replacing the compressor on an AC unit?
Replacing the compressor makes financial sense when the AC unit is relatively new (under 8 years old) and still under warranty. For newer systems with minimal previous repairs, compressor replacement extends the system's life at a fraction of the cost of full replacement.
For older units or those with recurring problems, full system replacement may provide better long-term value through improved efficiency, lower operating costs, and comprehensive warranty coverage.
Can an AC compressor be repaired instead of replaced?
AC compressors are hermetically sealed and can't be repaired or rebuilt on-site. If the AC compressor fails, your options are to replace the compressor, replace the entire condenser unit, or replace the whole AC system.
Minor compressor issues like electrical problems or refrigerant leaks in connecting lines can sometimes be repaired, but a faulty compressor requires complete replacement.
Getting estimates from air conditioner repair companies
Follow these tips to help you find the best air conditioner repair company near you:
Get estimates from at least three local HVAC companies to compare.
Look for NATE-certified technicians with experience installing and repairing air conditioners.
Read their reviews on HomeGuide and Google.
Choose a company that is licensed, insured, and has been in business for 5+ years.
Get a full breakdown of all costs involved.
Ask for a written contract and warranty.
Questions to ask AC repair techs
Ask AC repair technicians these important questions to ensure you hire a reputable, experienced pro:
How long have you been servicing AC systems, and what certifications do you hold?
Are you licensed and insured?
Can you provide a detailed diagnosis before recommending compressor replacement?
What warranty do you offer on the new compressor and installation work?
Do you offer financing options or payment plans for major repairs?
How quickly can you complete the compressor replacement once parts arrive?
Will you provide a written estimate with all costs clearly itemized?
Do you service this brand of equipment and keep common parts in stock?
Can you explain why the compressor failed and how to prevent future problems?
What maintenance recommendations do you have to extend the new compressor's life?
Are there any rebates or incentives available for high-efficiency compressor upgrades?
Will this project require any permits, and will you obtain them?
Using our proprietary cost database, in-depth research, and collaboration with industry experts, we deliver accurate, up-to-date pricing and insights you can trust, every time.