As the temperature rises higher and higher every passing day, air conditioning becomes more of a necessity than a luxury. But, have you ever found yourself in a situation where your AC is not cooling enough? A possible cause of this could be a faulty AC coil. As repairing or replacing an AC coil can come at a hefty cost, it’s important to know the average cost of AC coils and what factors affect it. In this article, we’ll take a deep dive into the cost of AC coils and help you make an informed decision when it comes to repairing or replacing your AC coil.

1. Understanding AC Coil and Its Importance in Your Air Conditioner

AC coils, also known as evaporator coils, are an integral part of your air conditioning system. These coils are responsible for absorbing the heat from the air inside your home and transferring it outside. They play a crucial role in regulating the temperature inside your home and ensuring that your air conditioning system works efficiently.

There are two types of AC coils – indoor coils and outdoor coils. Indoor coils are located inside your house near the air handler, while outdoor coils are located in the unit outside. Both of these coils work together to remove heat from your home and keep it cool.

However, over time, these coils may get dirty or damaged, causing your air conditioning system to work less efficiently. That’s why it’s essential to understand the importance of AC coils and how they work to maintain the temperature inside your home.

How Do AC Coils Work?

AC coils work by passing refrigerant through them, which absorbs heat from the air inside your home. As the hot air passes over the cold coils, the heat is absorbed, and the cool air is then circulated back into your home. The refrigerant then travels outside, where it releases the heat and cools back down before returning back inside to start the process over again.

What Happens When Your AC Coils are Dirty or Damaged?

When your AC coils are dirty or damaged, it can cause a host of problems in your air conditioning system. Dirty coils can reduce the airflow and cause your system to work harder than necessary, leading to higher energy bills. In severe cases, dirty coils can cause your system to break down completely, requiring costly repairs or replacement.

Similarly, when your coils are damaged, it can affect the efficiency and cooling capacity of your air conditioning system. Leaking coils can cause refrigerant to escape, which can lead to other issues like compressor failure.

In summary, AC coils are a critical component of your air conditioning system, and it’s necessary to keep them in good condition to ensure efficient temperature regulation in your home.

2. Factors That Affect the Cost of an AC Coil Replacement

As a crucial component of an air conditioning system, the AC coil is responsible for transferring heat from inside your home to the outside. When the coils become damaged or coated with dirt, debris, or grime, they can impact the cooling performance of your air conditioning unit, or worse, cause it to break down entirely. The cost of replacing a faulty AC coil can vary based on several factors that we will discuss below:

Age of the Air Conditioning Unit

The age of your air conditioning unit plays a vital role in determining the cost of replacing its coils. If you have an older AC unit, then the likely scenario is that it uses outdated technology that is no longer in production. In such cases, replacing your AC coil can be costly because you might have to opt for a custom coil made specifically for your unit, which can drive the cost up.

Type and Size of the Coil Needed

The type and size of the coil needed for replacement are two crucial factors in determining the overall cost of the replacement. There are different types of AC coils available: copper, aluminum, and evaporator coils. Copper coils are typically more expensive than aluminum ones, but they’re more durable and have a longer lifespan. The size of the coil needed is also relevant, as larger coils can be more expensive than smaller ones.

Brands and Warranties

The brand of your AC coil can significantly affect the cost of replacement. Some well-known brands might cost more than others, but they come with warranties and are known for their quality. Generally, reputable brands offer more extended warranties than less established ones, which can help offset the cost of replacement should anything go wrong.

In conclusion, several factors can affect the cost of AC coil replacement, including age, type, size of the coil, and brand. Understanding the underlying factors can help you make an informed decision and plan your budget accordingly.

3. Different Types of AC Coils and Their Price Range

AC coils come in various types, and each type has a different price range. It’s essential to know the various options before making a replacement decision. The following are the .

1. Evaporator Coils

The evaporator coils are located inside your home’s air conditioning unit and responsible for absorbing heat from the air. They are made of copper tubing with aluminum fins, and they cost approximately $500 to $1,500. The cost depends on the type of AC unit you have, the location of the coil, and the availability of the coil in the market.

2. Condenser Coils

Condenser coils are the outdoor unit of your AC system and responsible for releasing the heat absorbed from your home’s air. They are made of copper tubing with aluminum fins and cost approximately $500 to $1,500. The cost range depends on the same factors as the evaporator coil.

3. Copper Coils

Copper coils are becoming the popular choice for AC coils, replacing the traditional aluminum coils. They are more durable and last longer while offering better heat transfer. The copper coil cost ranges between $1,000 and $2,500, depending on your AC unit’s size and brand.

4. Coils with Corrosion-resistant Coating

If you live in a humid area, your AC coils are more prone to rust and corrosion due to moisture accumulation. Coils with corrosion-resistant coatings are specially designed to prevent rust and offer a longer lifespan. The price range is between $750 and $1,500.

Knowing the helps in making the right replacement decision and managing your budget well.

4. How to Identify When Your AC Coil Needs Replacement

One of the most crucial components of your air conditioning system is the AC coil. It is responsible for absorbing heat from indoor air and transferring it outside, ensuring that your home stays cool and comfortable all summer long. However, over time, AC coils can develop problems that affect their performance and lifespan. In this section, we will discuss .

1. Reduced Cooling Efficiency

AC coils are responsible for helping cool the air that circulates through your home. Over time, these coils can become dirty and clogged, reducing their ability to absorb and transfer heat. As a result, your air conditioner may struggle to reach and maintain your desired temperature, resulting in poor cooling efficiency and increased energy bills. If you notice that your air conditioner is struggling to cool your home or is running continuously without effectively reducing the indoor temperature, it may be time to replace your AC coil.

2. Unusual Noises and Smells

Another sign of a failing AC coil is the presence of unusual noises and smells coming from your air conditioner. A damaged coil can cause your system to make strange noises such as whistling, hissing, or banging sounds. Additionally, a dirty coil can lead to mold growth and unpleasant odors from your HVAC system. If you notice any unusual noises or smells coming from your air conditioner, it is essential to have a professional HVAC technician inspect and potentially replace your AC coil.

3. Frequent Repairs

If your air conditioning system is constantly in need of repairs, it may be a sign that your AC coil is failing. A damaged coil can cause your system to work harder, putting more stress on other components, resulting in frequent breakdowns and repairs. If you find yourself frequently calling for air conditioning repairs, it may be time to consider replacing your AC coil.

By being aware of these signs, you can identify when your AC coil needs replacement and avoid costly repairs or further damage to your HVAC system. If you are unsure if your AC coil needs replacement, it is always best to consult a professional HVAC technician to assess the situation and make the necessary repairs.

5. Tips to Save Money on AC Coil Replacement Cost

AC coil replacement can be an expensive affair, but there are a few ways to save money without compromising on the quality of the replacement. Here are some tips to help you save money on the cost of an AC coil replacement.

1. Regular Maintenance

One of the best ways to save money on AC coil replacement is by performing regular maintenance on your air conditioner. Regular maintenance will help prevent any issues with your AC coil and ultimately extend the lifespan of the unit. This can save you money in the long run by reducing the need for costly repairs and replacements.

2. Shop Around

When you need to replace your AC coil, it’s essential to shop around for the best price and service. Get quotes from several HVAC companies, compare the prices, and choose the one that offers the best value for your money. However, make sure to choose a reputable company that has experience and excellent customer reviews.

3. Consider Repair

In some cases, repairing the AC coil may be an option instead of replacing it. This is especially valid for less severe damage and can save you a lot of money. If your AC coil has minor damage, consider repairing it instead of replacing it.

4. Check Your Warranty

Before you pay out of pocket to replace your AC coil, check your warranty. If your air conditioner is still under warranty, the cost of the replacement may be covered. Many HVAC companies offer warranties on their products and services, so make sure to check this option.

5. Energy Efficiency

Investing in an energy-efficient AC coil can save you a lot of money in the long run. Energy-efficient AC coils use less electricity, resulting in lower energy bills. Although an energy-efficient AC coil may cost more upfront, the savings on energy bills can quickly offset the difference.

By following these tips, you can save money on the cost of replacing your AC coil. Remember to prioritize regular maintenance and choose a reputable HVAC company to ensure that your air conditioning unit is functioning efficiently and cost-effectively.

People Also Ask:

What is an AC coil?

An AC coil, also known as an evaporator coil, is a critical component in an air conditioning system. It helps remove the heat and humidity from the air by absorbing it with the refrigerant.

Why would I need to replace my AC coil?

A malfunctioning AC coil can lead to reduced efficiency and higher energy bills. It can also cause the AC unit to struggle to maintain a comfortable temperature and could result in a breakdown of the entire system.

How much does it cost to replace an AC coil?

The cost to replace an AC coil can vary widely from $600 to $2000, depending on the size of the AC unit, the quality of the coil, and the complexity of installation.

Can I replace the AC coil myself?

It is not recommended to replace an AC coil yourself. It involves handling refrigerant, which can be dangerous if not done correctly. It is best to hire a licensed HVAC professional to ensure the job is done safely and correctly.

Are there any other costs associated with replacing an AC coil?

Yes, there could be additional costs for repairs or upgrades needed to the system when replacing the AC coil. This includes items such as refrigerant refilling, compressor replacement, or ductwork repairs.


Replacing an AC coil is an expensive repair, but it is necessary to maintain a comfortable living space and ensure the longevity of the AC unit. Hiring a licensed HVAC professional is recommended to ensure the job is done safely and correctly, and it is important to factor in any additional costs that may occur.