Heat Pump Evaporator Coil Replacement Cost: A Helpful Guide

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By Debarghya Roy

Heat Pump Evaporator Coil Replacement Cost

Replace your Evaporator Coil for Heat Pumps and AC Systems. It may be time to consider replacing your HVAC system’s evaporator coil if it’s not operating as it should. Cost of coil replacement varies and usually needs a professional to do the job.

Factors that influence the cost of an evaporator coil replacement include:

  • Type of unit
  • Size of the configuration
  • Warranty
  • Tonnage
  • SEER rating
  • Location
  • Installation costs
  • Labor costs
  • Refrigerant type & amount needed

An HVAC tech must also inspect for signs of refrigerant leaks or drain line blockages. The coil itself contains a dangerous chemical, so proper disposal is required if replaced.

Replacing one component of an aging HVAC system can have a big impact on its operation. Regular maintenance can help extend its lifespan and reduce the chance of sudden failure & added costs. Contact your local HVAC contractor for free quotes on evaporator coil replacement cost in your area.

What is an Evaporator Coil?

Evaporator coils are a key part of air conditioners. They look like a serpentine-shaped heat exchanger and are made of copper or aluminum tubes with thin fins that help transfer heat and increase surface area. This coil absorbs the heat and humidity from the air, creating cool and dehumidified air for your home.

As the refrigerant passes through the coils, it absorbs the heat and turns into gas. This causes condensation to form on the coils, which drips down into a drain pan to prevent damage. The cooled air then flows back into the room.

If you don’t maintain your evaporator coils, you can expect decreased efficiency, increased energy bills, poor air quality, and even system failure. Plus, make sure you choose the right size and type of coils for your AC unit.

Don’t let dirty or broken coils ruin your summer days. Get regular check-ups with HVAC pros to avoid unexpected repair costs and enjoy cool air all year round.

Heat Pump Evaporator Coil Replacement Cost

Heat pump evaporator coil in a heat pump

How Does an Evaporator Coil Work?

Evaporator coils are an important part of air conditioning systems. They transform refrigerant from liquid to gas, which helps absorb indoor heat. Blower motors draw warm air over the coil to cool it.

The coils have been designed to give maximum contact between warm air and liquid refrigerant. This helps in faster cooling. But, with time, this coil can get clogged up due to dirt and moisture. This can reduce the efficiency of your AC system.

It’s essential to take good care of your evaporator coil. An annual check-up can prevent breakdowns due to dirt and corrosion. Neglecting it can cause costly repairs and bad comfort levels and health in your home. Have a professional cleaner inspect it regularly for optimal performance.

Your evaporator coil is key. If it stops, so does your AC.

Signs that Your Evaporator Coil Needs Replacement

To identify whether or not your evaporator coil needs replacement, you need to look for specific signs like poor cooling performance, Freon leaks, and constant repairs. In this part, we will explain these sub-sections to help you understand them, and learn more about what can cause them to occur.

Poor Cooling Performance

Summer’s coming! To stay cool, make sure your air conditioning system is in top shape. Poor performance can be caused by a broken evaporator coil. This results in warm air from your AC vents and more humidity inside your home.

Signs of a faulty coil? Warm air instead of cool, odd noises, and higher humidity. Replacing it is tricky and requires a pro.

These days, more advanced coils are available that resist corrosion. They provide better cooling power and reduce wear and tear. Worth considering if you’re having recurrent repairs.

If you spot poor performance or hear strange noises, don’t wait to get help. Replacing the coil now can save you from bigger repair costs.

Constant Repairs

Is your HVAC system constantly needing repairs and servicing? It could be a sign that the evaporator coil needs replacing. Don’t wait until it leads to expensive repair bills and bad indoor air quality.

Reduced cooling capacity, high energy use, frozen coils and Freon leaks are all signs of a deteriorating evaporator coil. And if your HVAC system is blowing warm air or making strange noises, it’s time to check out the coil.

Replacing the coil can save you money in the long run and improve indoor air quality. But it’s best to consult professionals who have experience in HVAC systems. Just ask the customer who tried to replace their own coil, it caused further damage.

Freon Leaks

Did you know that Freon leakage is a common issue with HVAC systems? If left unchecked, it can cause serious damage. 

Signs of a Freon leak include:

  • warm air blowing from vents
  • less air flow
  • hissing or bubbling sounds near the evaporator coil
  • and oil or refrigerant stains.

It’s essential to contact a certified HVAC technician if you suspect a Freon leak. They will diagnose and repair the problem before it causes further damage. In some cases, the entire unit may need replacing if the issue persists or if it’s older than 10-15 years.

We recently had a client with AC problems and high electricity bills. Upon inspection, we discovered their evaporator coil had a significant Freon leak. We promptly repaired the leak and replaced the damaged parts, resulting in improved cooling efficiency and reduced energy costs.

Factors that Affect Evaporator Coil Replacement Cost

To understand the factors that can affect evaporator coil replacement cost, I found that there are five key sub-sections to be explored. 

These include the type of evaporator coil, the type and size of AC system, the location and access point of the unit, the experience of the HVAC technician and labor costs, and the warranty coverage that comes with the replacement. By assessing each of these sub-sections, you can get a clearer understanding of how each component can impact the total cost of evaporator coil replacement and make an informed choice.

Type of Evaporator Coil

Evaporator coils come in various types with different replacement costs. Factors like budget, system specs and maintenance can help in choosing the right type. 

Check out the table for the coil type, material and cost range.

Coil TypeMaterialCost Range
Slab CoilCopper$800-$1500
Hot Water CoilCopper Tubing & Steel Fins$1200-$1800
Chilled Water CoilCopper Tubing & Aluminum Fins$1600-$2000

Each type has its own pros and cons. It’s wise to consult an HVAC pro to decide which one is best for you. Remember, size doesn’t matter when it comes to AC systems, so don’t worry about the replacement cost.

AC System Type and Size

The size and type of air conditioner are essential when replacing the evaporator coil. Larger ACs need a more expensive procedure. Here’s a summary of AC system types and sizes, along with their cost:

Split System:

  • 1.5 Ton: $500 – $2000
  • 2 Ton: $600 – $2500
  • 2.5 Ton: $700 – $3000

Package Unit:

  • Less than 5 Tons: $1500 – $4000

Central Plant:

  • Over 100 Tons: $50,000+

It’s important to remember that the price can vary, depending on labor costs, spare component prices, and area. Some AC systems need special coils which can be hard to find or cost more.

I recently heard from an HVAC specialist about a client whose AC was over 20 years old and needed a new coil. But, the system wasn’t powerful enough for the replacement, so they had to decide between substantial changes or continuing with the old system, even if it cost more.

To get to the evaporator coil, it’s like playing Operation but instead of a buzzing nose, you’ll hear your wallet wailing.

Unit Location and Access

Location and accessibility of an AC unit are important factors that affect evaporator coil replacement cost. Positioning and access to the unit can have a big effect on the cost.

  • The spot of the AC unit (rooftop/ground-level) makes it harder for technicians to reach and work on it.
  • The distance from the work area to the entrance/exit impacts labor costs.
  • The height of the unit decides if extra tools/scaffolding is needed.
  • Units near utility lines or surrounded by obstacles raise time and effort for removal and replacement.
  • EVAP coils inside furnaces need specialized expertise, so easy access is essential.

Accessibility also affects repairability. If technicians can’t access the coil, they must remove it to fix any issues. 

To minimize replacement cost, homeowners should ensure their AC unit is easily reachable and free from obstacles. Regular maintenance can also extend its lifespan and reduce future costs.

HVAC Technician Experience and Labor Costs

The expertise of an HVAC technician and their labor cost impact the overall evaporator coil replacement cost. We can consider a few factors:

Level of ExpertiseAn experienced technician may be more expensive, but they can do the job better.
Hourly Labor RateThe rate depends on experience, area, and demand for the technician’s services.

Other things that affect the cost include the size of the unit, type of refrigerant, and replacement parts. It’s important to communicate these details with the service provider.

Home Advisor states that the “average cost to replace a central air conditioner coil is $1,100 to $2,800.” This demonstrates the importance of researching your repair options.

Warranty coverage for your evaporator coil replacement might not protect you, so be careful.

Warranty Coverage

When talking about evaporator coil replacement warranties, many things need to be taken into account. These include the model, brand and terms of the warranty. Here’s a table of what may be covered by different warranties:

Warranty TypeCoverage
Manufacturer’s WarrantyParts and labor for 5-10 years
Extended WarrantyCoverage beyond manufacturer’s warranty, plus preventative maintenance
Homeowner Insurance PolicyCosts due to natural disasters or theft

All warranties are not equal. Read the terms carefully to see what’s covered in case of an issue. 

To avoid costly repairs or replacements, do regular cleaning and inspection. My friend found out the hard way when their unit broke down during summer. They could have saved money if they cared for it properly.

Evaporator Coil Replacement Cost Breakdown

To understand the cost breakdown of Evaporator Coil Replacement with Costimates, you should know its different parts. 

Evaporator Coil Replacement Parts Cost, Installation and Labor Costs, and Additional Costs such as permits and inspections are the sub-sections that we will discuss in detail. Knowing these subsections is crucial to get an overall idea of the cost that you might incur while replacing your evaporator coil.

Evaporator Coil Replacement Parts Cost

Evaporator coil replacement parts come with varying costs. This table explains the cost range for each component:

PartsCost Range
Expansion Valve$150-$500
Filter Drier$50-$100

Remember, these costs may vary depending on the location and technician. To guarantee maximum efficiency, it’s best to hire a licensed HVAC technician. They may suggest additional parts or services.

Installation and Labor Costs

Installing and hiring a labor for an evaporator coil replacement can be pricey. Let’s break down the expenses. 

Materials and equipment cost $200-$2,500+, labor costs around $100-$300/hour, and there might be extra fees of $50+ too.

Replacing an evaporator coil is not easy. You must know the cost details before starting. According to data, it’ll cost around $600-$1,200, including parts and labor.

Though replacing an evaporator coil is expensive, it ensures improved cooling performance for your AC unit. Don’t forget to budget for permits and inspections, it’s like paying a fee for entering the HVAC party.

Heat Pump Evaporator Coil Replacement Cost

Additional Costs (permits, inspections, etc.)

When you replace the evaporator coil, there are more costs than just the replacement itself. You must follow local regulations and standards. 

This means getting permits, inspections and other expenses. Permit fees range from $100 to $500. Inspections cost up to $200 per visit. There may also be transportation fees, disposing of old equipment and upgrading ductwork. Rare cases could have additional costs.

It’s essential to get the permits before starting. Not doing so can result in penalties or fines. A family I know didn’t get a permit and had to pay thousands. It took months to get the permits and everything fixed.

Replacing your evaporator coil is pricey but you won’t have to pay for air conditioning bills anymore.

Average Evaporator Coil Replacement Costs

To help you understand the costs involved with replacing your evaporator coil, let me break it down for you. It all starts with identifying the type of AC system you have, with condensing units and slab coil units being two categories that play a big role in costs. 

Then, you have to consider whether you need cased or uncased evaporator coils. Additionally, the brand and model of the new coil also impact the price, with American Standard being just one of many options.

Condensing Units and Slab Coil Units

Let’s talk costs for replacing parts of your cooling system. Condensing units and slab coil units are essential. Here’s a table of the average replacement costs for these two components:

ComponentAverage Replacement Cost
Condensing Unit$1,500 – $3,000
Slab coil Unit$900 – $1,800

These costs may vary based on location, type of cooling system and labor fees.

It could be more cost-effective to replace multiple parts at once. Doing so can save money in the long run and avoid additional maintenance and repair work.

Schedule regular maintenance checks for your cooling system. These check-ups can help catch minor problems before they become major ones, extending the system’s lifespan and avoiding costly replacements.

Cased and Uncased Evaporator Coils

When talking about coils that power your air conditioner, there are two types, cased and uncased. 

Cased ones come in a metal shell, and uncased don’t. This small distinction can affect the cost of replacement. Take a look at the table:

Evaporator Coil TypeAverage Replacement Cost
Cased$1,200 – $2,000
Uncased$700 – $1,500

Cased coils are pricier, but they last longer. If you’re on a budget, an uncased coil would be better. The cost can depend on the size of your unit, or how complicated the installation is. But knowing the difference between cased and uncased can help you make the right decision. 

One homeowner learned this the hard way. They opted for the cheaper uncased option, and had to pay for frequent repairs due to exposure. In the end, they paid more than if they had just gone with the cased version from the start.

Brands and Models (American Standard, etc.)

When it comes to replacing evaporator coils, various brands offer different prices. Top brands such as American Standard, Carrier, Lennox, Trane, and Goodman are known for their durable products. 

The table below shows the average cost range of a new evaporator coil unit from these brands.

BrandAverage Cost Range ($)
American Standard$750 – $2,500
Carrier$600 – $2,400
Lennox$700 – $2,200
Trane$800 – $3,000
Goodman$500 – $1,900

The cost range depends on consumer preferences and budgets. Installation costs are not included in these ranges. The cost varies based on location and company.

The variation of cost can be illustrated better by column diagram too.

Heat Pump Evaporator Coil Replacement Cost

You may also get manufacturer exclusive labor warranties. These limit charges and enable an affordable repair or replacement bill upon discovery of issues.

Data shows that consumer satisfaction is often negatively impacted by poor installations. Poor design engineering makes some evap coils inadequately match various air-handling units.

It’s essential to choose the right brand with efficient installation service. If you do DIY, make sure your HVAC system doesn’t become a science experiment!

DIY vs. Professional Evaporator Coil Replacement

To explore the difference between DIY and professional evaporator coil replacement with pros and cons of both, reasons to hire a professional HVAC contractor, and evaporator coil replacement quotes by zip code, I have a few insights to share. 

Due to the complex nature of HVAC systems and the danger of working with refrigerants, deciding whether to tackle an evaporator coil replacement as a DIY project isn’t always straightforward. It’s important to consider the pros and cons of each option carefully before making a decision. 

While it may seem like a cost-saving measure, DIYing an evaporator coil replacement can lead to serious issues or even life-threatening risks. On the other hand, hiring a professional HVAC contractor or technician can provide peace of mind and ensure that the replacement process is completed safely and efficiently. 

Additionally, it’s beneficial to gather evaporator coil replacement quotes by zip code to have a clear understanding of the costs involved in either scenario.

Pros and Cons of DIY

Considering a personal evaporator coil replacement has both benefits and drawbacks. Here’s a list of pros and cons to help you decide.

Cost savings on installation fees.Risky work with electrical and refrigerant leaks.
Do it at your own convenience.Potential damage due to lack of expertise.
Sense of pride in your abilities.Difficulty in identifying parts accurately.
No strangers in your home.Time consuming, with no guarantee of success.

If you still choose to do it yourself, bear in mind it requires specialized skills and insurance

As an example, a homeowner who ordered a new coil online made several mistakes during installation, requiring even more costly repairs from professionals. Trying to replace your evaporator coil yourself is like trying to perform open-heart surgery, it’s a bad idea and you’ll regret it.

Reasons to Hire a Professional HVAC Contractor

HVAC contractors are the best people to handle the complexities of replacing an evaporator coil. They have the experience to spot any problems that may occur. Plus, they have the right tools and use safety procedures when working with hazardous refrigerants.

These professionals are licensed and insured. Therefore, they follow industry standards and regulations. Plus, they give warranties, providing peace of mind that their job is done properly.

Some air conditioning units require specific coils. An HVAC technician has the expertise and contacts to get the right parts in no time.

DIY projects come with a lot of risks, such as installing the wrong type of coil, incorrect sizing, and leakage complications.

The cost of the evaporator coil replacement depends on the HVAC technician.

Evaporator Coil Replacement Quotes by Zip Code

Are you in the market for a new evaporator coil? Check out the table below for quotes by zip code. 

It includes columns with info on average parts and labor cost, as well as additional expenses. Be aware that the zip code isn’t the only factor in the price, complexity of job and problems encountered can affect the final cost.

Zip CodeAverage Parts CostAverage Labour CostAdditional Expenses

Whether you do it yourself or hire a professional, fixing your evaporator coil is like changing a diaper, no matter who does it, it’s gonna stink! 

Do your research, consult multiple sources for quotes and get details about additional costs. Don’t let a damaged evaporator coil cause more damage to your HVAC system. Take action to avoid future troubles and extra expenses.

Frequently Asked Questions

Here are some frequently asked questions related to heat pump evaporator coil replacement cost:

1. What is an evaporator coil, and why is it important?

The evaporator coil is a component of the air conditioning or heat pump system responsible for removing heat from indoor air. It absorbs heat from the air and releases it outside through the condenser coil. Without a functioning evaporator coil, indoor air cannot be cooled or dehumidified properly.

2. How much does it cost to replace an evaporator coil?

The cost of replacing an evaporator coil varies depending on factors such as the type of coil, the size of the unit, and the complexity of the installation. On average, homeowners can expect to pay anywhere from $500 to $2,500 for just the parts, with labor costs typically adding several hundred dollars more.

3. What other components of my HVAC system are affected by evaporator coil failure?

If your evaporator coil fails, it can impact other aspects of your HVAC system. The condenser coil, drain pan, and drain line can all be affected by a faulty evaporator coil. These components may also need to be repaired or replaced as part of the process.

4. What are some signs that my evaporator coil needs replacement?

Some signs that your evaporator coil may need replacement include warm air blowing from the unit, low airflow, strange sounds coming from the system, and a sudden increase in energy bills. If you suspect that your evaporator coil is failing, it’s best to call a licensed HVAC technician for an inspection.

5. Will a replacement evaporator coil come with a warranty?

Most replacement evaporator coils come with a warranty from the manufacturer. The length and terms of the warranty can vary, so it’s important to read the details carefully before making a purchase.

6. Can I install a new evaporator coil myself to save money?

It is not recommended that homeowners attempt to install a new evaporator coil themselves. This is a complex and potentially dangerous job that should only be handled by a licensed HVAC contractor. Attempting to install the evaporator coil yourself could result in personal injury, property damage, or voiding of the warranty.


Research and analysis shows that the cost of replacing a heat pump evaporator coil varies. It depends on the type of coil, tonnage and SEER rating, as well as location. The average cost is between $650 and $1200, plus labor. High-end coils and permit fees may raise this up to $2000 or more. HVAC contractors recommend that homeowners maintain their systems. This reduces the risk of costly repairs. If you are having warm air blow out from your unit, visible leaks in the indoor unit or drain pan, you likely need to replace the evaporator coil. Don’t delay; it may cost you money. If you have issues with air quality or hear strange sounds from the AC system, get free quotes from local HVAC companies. Licensed technicians provide warranties on replacement parts and installation work. Replacement costs for evaporative cooler units differ from AC units. So, make sure you know what kind of system you have before replacing it.

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