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The Most Expensive Types of HVAC Service in Greenville


Any air conditioner or heater can develop mechanical issues regardless of the make or model. Many of these are relatively simple and inexpensive to fix. But others can cost nearly as much as replacing the entire system. Here’s a look at some of the most expensive types of HVAC service in Greenville.

Refrigerant Leak

The cost of fixing a refrigerant leak is unpredictable. With the phase-out of R-22 refrigerant, supplies are becoming scarcer, and what remains continues to increase in price. It can cost thousands of dollars to recharge an older system. The cost of finding older replacement parts, if you need a new coil, is also a factor. 

A refrigerant leak can cause the condenser and the system to stop working, requiring a complete system replacement. The average cost of replacing your heating and cooling system is around $7,500.¹

Evaporator/Condenser Coils

The coils are a major part of your HVAC system and are often expensive to replace. As of 2023, an AC coil can cost $400 to $1,500.¹ A technician will have to access the evaporator coil through a utility closet, while the condenser coil is typically within the outdoor unit. Without working coils, the absorption and release of heat are not possible.


A compressor replacement can cost up to $2,000.¹ It’s one of the most expensive HVAC repair jobs. Unfortunately, compressors are usually sealed, making them difficult to repair. Such an issue tends to happen near the end of an air conditioner’s lifespan, so replacing the system is usually the best option when the compressor fails.

Heat Exchanger

The heat exchanger is a vital part of your furnace. It allows heat to transfer from one medium to another. Sometimes, toxic combustion byproducts get mixed in and are released into the air if the part cracks. Repairing a heat exchanger may cost under $200, but replacing it can cost as much as $1,500.¹ The job often requires extensive work disassembling components and putting them back together.

Ductwork Repair

An HVAC issue often originates in the ductwork. Such problems aren’t always easy to find, so you’ll need a professional to inspect the system using specialized equipment. Ductwork problems can be localized or require large sections of air ducts to be replaced. Plenums, vents, and registers may also be involved. A ductwork repair project can cost from $500 to $2,000.¹

Other Costly HVAC Repairs

Not every HVAC service in Greenville costs thousands of dollars. You’ll probably spend a few hundred here and there during the life of your system. For example, a capacitor costs $100 to $500 to replace, a furnace ignitor costs $150 to $300, and an HVAC fuse costs $50 to $200. It can cost $100 to $600 for main circuit board repair or replacement.¹

If the condenser fan motor fails, expect to spend $200 to $500 to replace it. Blower fan motors are generally more expensive. Replacing one can cost $400 to $700. Therefore, those loud screeching or banging noises can become a moderate repair bill. The thermostat is another part that may need replacement. A basic thermostat can cost as little as $15, but a modern smart thermostat can cost as much as $300 (plus labor fees for installation).¹

Other HVAC-related expenses include:

  • Maintenance Contracts: Service contracts cost between $150 and $500 per year, while an annual tune-up can cost between $75 and $200 (or up to $750 for a larger system).
  • Permits and Inspections: A full HVAC and ventilation system inspection, including electrical checks, can cost $80 to $450. Permits generally range from $250 to $400.
  • Emergency Repair Fees: An HVAC contractor usually charges a fee to dispatch a crew after hours. They may charge $40 to $80 extra per hour on top of their usual rates.¹

 As you can see, the cost of ownership is something to consider when investing in an HVAC system. Regular maintenance, while it may come at a small price, can save you thousands of dollars by preventing repairs and extending the life of the system.

Call Waldrop for HVAC Service in Greenville/Spartanburg

Waldrop is a leading HVAC and plumbing services company in Upstate South Carolina. Our NATE-certified technicians have the training and skills to take on any AC or heating repair. They also ensure your system is running smoothly and efficiently. For air conditioning and heating repair and replacement in Greenville or Spartanburg, call (864) 536-0887.


  1. https://www.angi.com/articles/how-much-hvac-repair-cost.htm 


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Greenville, SC

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A friend recommended Waldrop after he had a visit last week. Our A/C was not cooling as well as it should, and the Split “Smart” thermostat was doing crazy things on the first and 2nd


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