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What is the average price to replace an evaporator?

The average cost to replace an evaporator can range from $500 to $1,500, depending on the size of the unit, the complexity of the installation, and the labor costs in your local area. The evaporator is a critical component of an HVAC system, responsible for absorbing heat from the indoor air and transferring it to the refrigerant. When an evaporator fails, it needs to be replaced to maintain proper cooling and heating in your home or building.


Factors Affecting Evaporator Replacement Costs


Several factors can influence the overall cost of replacing an evaporator, including:



  • Evaporator size: Larger evaporators, typically found in larger HVAC systems, will cost more to replace than smaller units.

  • Accessibility: If the evaporator is located in a difficult-to-access area, such as a tight crawl space or attic, the labor costs may be higher.

  • Refrigerant type: Some older HVAC systems use refrigerants that are no longer commonly available, which can increase the cost of the replacement parts.

  • Labor costs: The hourly rate of the HVAC technician performing the replacement can vary depending on your local market and the company's pricing structure.

  • Additional repairs: If the evaporator failure has caused damage to other HVAC components, such as the compressor or refrigerant lines, the total cost of the repair may be higher.


It's important to note that the cost of the evaporator itself is typically only a portion of the total replacement cost, as the labor and any additional parts or repairs required can significantly increase the overall expense.


Replacing the Evaporator


Replacing an evaporator is a complex task that should be performed by a licensed and experienced HVAC technician. The process typically involves the following steps:



  1. Disconnecting the old evaporator from the refrigerant lines, electrical connections, and any ductwork.

  2. Removing the old evaporator and disposing of it properly.

  3. Installing the new evaporator, ensuring proper connections to the refrigerant lines, electrical system, and ductwork.

  4. Charging the HVAC system with the appropriate refrigerant and testing the system to ensure proper operation.

  5. Performing any additional maintenance or repairs to the HVAC system as needed.


Attempting to replace an evaporator without the proper training and equipment can be dangerous and may result in further damage to the HVAC system. It's always best to hire a professional HVAC contractor to ensure the job is done safely and correctly.

What is the lifespan of an evaporator?


10-15 years
On average, an evaporator coil in a commercial HVAC unit can last anywhere from 10-15 years. It's important to note that this is a general estimate and that the actual lifespan of an evaporator coil can vary dramatically. However, with regular maintenance and proper usage, the coil can last even longer.



How long does it take to replace an evaporator?


A new evaporator coil can cost anywhere from $2,500 to $6,500 and takes 3+ hours to complete, potentially leading to higher labor costs than other AC repairs.



Is it worth replacing an evaporator in a car?


Whether it's worth it really depends on your situation. If your car is otherwise in good shape and you plan to keep it for a while, fixing the AC might be a smart move—nobody likes driving in a sauna! But if your car has other major issues, you might want to think about whether it's worth the expense.



How much does it cost to replace a 5 ton evaporator coil?


How Does HVAC System Tonnage Affect AC Evaporator Coil Replacement Pricing?

HVAC System TonnageCost
3.0-ton$2,350 – $2,550
3.5-ton$2,500 – $2,700
4.0-ton$2,650 – $2,850
5.0-ton$2,800 – $3,000



How much does it cost to replace a 4 ton evaporator coil?


Evaporator Replacement vs. New Indoor Unit

System SizeReplacement Evap CoilReplace Indoor Unit
3 Ton$1,670 - $2,370$3,184 - $4,719
3.5 Ton$1,900 - $2,820$3,385 - $4,894
4 Ton Evap$2,110 - $3,270$3,539 - $4,912
5 Ton Evap$2,310 - $3,700$3,681 - $5,316



How much does it cost to replace all 4 coils?


Ignition coils can vary in price based on their type and quality, ranging from $50 to $200 or more for each coil. Labor costs for ignition coil replacement are typically charged per hour of work. On average, labor rates can range from $50 to $150 per hour, depending on the location and the repair shop.



How much does an evaporator cost to replace?


Replacing an evaporator coil costs an average of $1,350, and it often ranges from $600 to $2,000 depending on the size, type, and the cost of pro labor in your area.



Should I replace my 12 year old AC unit?


0 to 9 years old: Your HVAC equipment most likely has years of life left. Seriously consider a repair over a replacement. 10 to 13 years old: Some high-use heating and air conditioning systems wear out after about a decade.



Is it cheaper to replace an evaporator coil or whole unit?


While it may seem cheaper to replace just the evaporator coil, there are many cases where it's better to replace the entire unit. The main reason for this is that most air conditioner systems have two coils that work together. The first is the inside coil—the evaporator that cools the air down.



Can I replace just the AC evaporator?


The evaporator coil absorbs heat and humidity from the air inside your home, while the condenser coil expels that heat outdoors. Despite being separate components, their functions are interlinked and crucial for the proper operation of your AC unit. Replacing just the evaporator coil can lead to problems.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.