How Much Does AC Capacitor Replacement Cost? [2025 Data]

The AC capacitor stores electric energy to power the compressor and fan motors when you start your air conditioner, and it often lasts 10 to 20 years. Replacing an AC capacitor costs an average of $250, which includes the price of the capacitor and labor for installation. However, the total cost could be as low as $200 or as high as $400, depending on the type of AC capacitor and the complexity of the replacement. AC capacitor replacement costs primarily consist of labor, as the capacitor itself rarely exceeds $45. 

AC Capacitor Cost by Unit Type

Run, start, and blower AC capacitors tend to be the least expensive, while dual-run and heat capacitors could cost an extra $20 or more. If you’re unsure what type of capacitor you have, a local HVAC technician can help. 

Here’s a breakdown of AC capacitor costs by type:

HVAC Pro Costs

A local HVAC expert will charge between $200 and $400 in labor alone to replace your AC capacitor. Keep in mind that many professionals charge a flat rate for an AC capacitor replacement, which includes the cost of the capacitor itself. This all-inclusive flat rate often ranges from $300 to $600. If the fix is an emergency or requires the contractor to come to your house on a weekend or holiday, you’ll pay an additional fee.

Each HVAC pro sets the rate for replacing an AC capacitor. Some contractors include a diagnostic fee to assess the problem, while others charge only for labor to replace the part. When contacting pros for quotes, ask them if they charge a diagnostic fee and what that service includes.

Additional AC Capacitor Cost Factors

You’ll pay for the AC capacitor and the labor to install it, but the exact costs will vary based on a few important factors. Here's what to expect.

HVAC System Size

As the HVAC system size increases, the electrical components—like the compressor and fan motor—require more power to operate. To provide the necessary startup and running support, the AC capacitor needs a higher capacitance rating, measured in microfarads. Higher-capacitance capacitors typically cost more.

HVAC Accessibility

HVAC technicians may charge extra if the air conditioner unit is in a particularly hard-to-reach spot. This isn’t often a concern for residential homes, but you may encounter extra fees if the pros need to clear away bushes or move aside clutter. Ensure your AC units are clear before a technician visits to avoid extra charges.

Seasonality and Weather Conditions

When the weather warms up during the summer months, many homeowners turn on their AC and discover they have problems. This leads to a higher demand for HVAC technicians, who increase their maintenance and repair rates in response. Demand may also spike during heatwaves. Call an AC repair company in the spring before demand increases to catch problems early and save on labor. 

Product Manufacturer or Brand

Some air conditioner brands cost more than others due to quality, materials, and other factors. For example, Trane and Lennox units tend to be the most expensive, while Goodman and York are more budget-friendly picks. Capacitors for higher-cost brands will be more expensive as a result.

Air Conditioner Age

If you have an older AC unit, especially an outdated model, it may be more challenging to source a replacement part, which can lead to higher prices. It’s also common for a pro to find other issues while replacing the capacitor in an older AC unit.

Home Location

Location tends to affect labor costs, as well as unit costs to a lesser extent, due to factors like shipping and availability. Obtain several quotes from contractors in your region to compare fees.

Warranty

Capacitors are relatively affordable and usually don't have their own warranty. However, the manufacturer's warranty for your entire AC unit might cover capacitor replacement. Alternatively, if you have a home warranty that covers your AC unit, it may be less costly to submit a claim than to pay for the replacement yourself.

Additional Repairs 

If your AC capacitor has problems, it won't be long before other parts in your AC unit begin to fail as well. HVAC repairs cost much more when multiple parts must be repaired or replaced. Some common AC repairs include:

• Damaged compressor: $750–$2,000

• Thermostat replacement: $150–$350

• Fan coil replacement: $600–$2,000

• Burnt-out motor: $200–$700

Have your HVAC system inspected regularly and replace a damaged capacitor right away to avoid the higher costs of additional repairs.

Tips to Save on AC Capacitor Costs

HVAC capacitor replacement costs are relatively inexpensive. Still, there are some ways to minimize costs: 

• Buy the capacitor yourself: If you’re handy, you can purchase the replacement capacitor yourself. Just make sure it matches your AC unit’s specifications and have it ready for the technician.

• Keep up with regular maintenance: Scheduling regular check-ups for your AC can catch capacitor issues early, potentially avoiding emergency service charges. 

• Plan for off-season repairs: If possible, schedule the replacement during the spring or fall when HVAC services are typically less busy. 

• Join a maintenance plan: Many companies offer HVAC maintenance plans that include regular check-ups and discounted repairs. Joining one of these plans can save you money over time and keep your system running smoothly. 

• Get multiple quotes: Get quotes from at least three contractors to find the best rate in your area.

Why You Should Hire an AC Capacitor Replacement Pro

You can test an AC capacitor and replace it yourself for $60 to $100, including the unit and the tools needed for installation. This can save you $200 to $400 in labor costs, but taking matters into your own hands requires preparation and extreme caution. 

DIYing without proper HVAC and electrical knowledge risks leaving your home without heating or cooling. The AC capacitor could also leak toxic liquids or burst, potentially causing more serious injury. Contact a local air conditioning repair specialist to save time and eliminate risks.

Here’s why it’s ideal to hire an AC capacitor replacement pro

Replacing an AC capacitor isn’t a simple DIY job. Here’s why it’s best to hire an experienced pro:

• Professionals have the tools and expertise to replace capacitors quickly and correctly.

• DIY replacements can worsen damage or cause complete system failure.

• Experienced pros can quickly diagnose the cause of your AC issues and determine if the capacitor or another component is the source.

• Professional installation ensures your AC runs efficiently and reduces the risk of future problems.

If you want to DIY an AC capacitor replacement

If you want to assist your pro, consider helping out with the following tasks:

• Remove plants, outdoor furniture, and debris from the area around the unit

• Turn off the power to your AC and nearby circuits

• Wipe down your system and remove debris after replacement is complete

• Dispose of extra parts, packaging, and debris according to local regulations

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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