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AC Replacement in Greenville, SCGreenville, SC
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AC Replacement in Greenville

Expert AC Replacement in Greenville. Sized Right, Installed Right

Replacing your air conditioning system is one of the biggest home investments you will make, and in Greenville's hot climate, getting it right matters more than almost anywhere. An undersized AC will...

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  • Free second opinions at no cost
  • Fully licensed and insured, SC #117789
  • Financing available on qualifying systems, as low as 0%
  • Background-checked technicians
  • Better Business BureauA Rating
  • Locally owned small businessGreenville, SC
  • HVAC Contractor of the YearBusinessRate 2025
First Class Heating & Air technicians standing with the branded service van in a Greenville, SC neighborhood

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Clear, Flat-Rate Pricing

No surprises, no pressure. You know the price before we start any work.

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People First, Always

We treat our customers like family, because that's how we'd want to be treated.

AC Replacement in Greenville. Quick Answer

Replacing your air conditioning system is one of the biggest home investments you will make, and in Greenville's hot climate, getting it right matters more than almost anywhere. An undersized AC will run constantly and never fully cool your home, while an oversized unit short-cycles, wastes energy, and fails to dehumidify. In Greenville's humid summers, dehumidification is just as important as temperature control.

About Our AC Replacement Services in Greenville

First Class starts every Greenville AC replacement with a proper Manual J load calculation. We account for your home's square footage, insulation levels, window exposure, ceiling height, duct leakage, and even the number of occupants. A home in the shade-covered Augusta Road neighborhood has fundamentally different cooling needs than a sun-exposed property along Woodruff Road, and we size accordingly. This precise approach prevents the comfort problems that plague homes with incorrectly sized equipment.

Our installation process includes removing your old system, installing the new equipment, verifying proper refrigerant charge using superheat and subcooling measurements, testing airflow at every register, inspecting your ductwork for leaks, and programming your thermostat for optimal efficiency. We do not leave until you are comfortable and confident in your new system. Every installation is backed by manufacturer warranties plus our own workmanship guarantee.

The efficiency rating you choose for your Greenville AC replacement has a direct impact on your monthly energy costs for the next 15 to 20 years. A 16 SEER system costs roughly 20 percent less to operate than a baseline 14 SEER unit. Over a 15-year lifespan in Greenville's extended cooling season, that difference adds up to thousands of dollars in savings. We help you calculate the exact payback period so you can make a decision based on real numbers, not sales pressure.

Financing is available with no surcharges to make the upgrade affordable. We work with multiple lenders to offer competitive rates and flexible terms. Many Greenville homeowners choose to finance their AC replacement because the monthly payment is often comparable to, or even less than, the energy savings from their new high-efficiency system. We walk you through all options so you can choose what works best for your budget.

AC Replacement by First Class Heating & Air in Greenville, SC

What's Included in Our AC Replacement Service

Professional System Sizing
High-Efficiency Equipment
Expert Installation
Ductwork Inspection
Thermostat Setup
Manufacturer Warranties
Financing Available
Old System Removal

Get a Free AC Replacement Quote in Greenville

No overtime charges. Flat-rate pricing. Free estimates on replacements.

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What our customers say

The last month, in their words

Read our reviews
Thanks to Jonathan from First Class HVAC for the quick and efficient response to our A/C leak. Pump replaced and everything is ship-shape! 👍
Terrie Johnson on Google ·
I called First Class Heating & Air for a second opinion after another company could not find the part they said my unit needed. After finding that my system did Not need the part, First Class fixed the leak and replaced the refrigerant at less than half the cost of the other company's estimate. I appreciate companies being honest and upfront with customers. They also kept me updated every step, day before and day of service. I will be calling First Class Heating & Air for both of my properties and sending others their way!
Jacki Beal on Google ·
Excellent and professional service, we had a major HVAC failure. They showed up same day, prioritized us and fixed it quickly and cleaned up well. 10/10 would use again
Samuel Yamout on Google ·
Phenomenal service. My AC guys I recommend to everyone. 5 quotes from other companies that said I had to replace my whole $15k HVAC + ductwork system and these guys were the only ones to tell me they could figure out how to set me right with some repairs to the system I already had. They're smart and good at what they do and always go the extra mile. The best!!
Nick T on Google ·
Excellent service, explains everything, reasonable priced
Roseann on Google ·
First class all around. Came out quickly, gave knowledgeable feedback and presented options for repairs. We’ll be using them again!
Dayton Sorrells on Google ·

Local Pro Tip. Greenville

If your Greenville home was built before 2006, there is a good chance it still uses R-22 refrigerant, which has been phased out and is extremely expensive. When your R-22 system needs major repair, replacement with a modern R-410A system is almost always the smarter financial decision. We can test your refrigerant type during a free assessment.

Greenville, SC neighborhood

Wondering what it costs? See our HVAC pricing guide for our real prices.

AC Replacement FAQ. Greenville, SC

Answers to common questions about AC replacement in Greenville.

How much does AC replacement cost in Greenville?

AC replacement costs vary based on system size, efficiency rating, and any ductwork modifications needed. Greenville homes typically range from mid-tier to premium systems depending on the homeowner's comfort and efficiency goals. We provide free estimates with transparent, no-pressure pricing that includes all labor, materials, permits, and disposal of your old system.

What SEER rating should I choose for a Greenville home?

Given Greenville's long, hot cooling season of roughly 150 days, we typically recommend 16 SEER or higher for best value. Higher SEER systems cost more upfront but save significantly on monthly bills. The difference between 15 SEER and 18 SEER can mean $200 to $400 in annual savings for a typical Greenville home. We calculate your specific payback period based on your actual cooling load.

How long does AC installation take in Greenville?

Most Greenville residential AC replacements are completed in one day, typically 6 to 8 hours. Complex installations with ductwork modifications, electrical panel upgrades, or difficult equipment access may extend into a second day. We provide a clear timeline before we start so you can plan accordingly.

Will a new AC system reduce my energy bills in Greenville?

Almost certainly yes. If your current system is 10 or more years old, a modern high-efficiency replacement can reduce your cooling energy costs by 20 to 40 percent. Greenville's extended cooling season amplifies these savings because your AC runs for more months than in northern climates. Most homeowners notice lower bills starting with their first full month on the new system.

Do you remove and dispose of the old AC system?

Yes, complete removal and proper disposal of your old system is included in every Greenville AC replacement we perform. We handle refrigerant recovery according to EPA regulations, disconnect and remove the old equipment, and clean up the work area. You do not need to arrange separate disposal or haul anything yourself.

AC Replacement in Nearby Cities

We also provide AC replacement in these nearby communities.

AC Replacement in SimpsonvilleAC Replacement in MauldinAC Replacement in TaylorsAC Replacement in Greer
All Services in GreenvilleAC Replacement OverviewAll Service Areas

Recent work in Greenville

4 jobs our technicians have finished around Greenville. Tap a pin to see the photo and what the work involved. Locations are approximate. We place each job to the neighborhood, never to a customer's door.

  • Fixed a mis-plumbed secondary drain line, off Meyers Court, Greenville, SC. Found the secondary drain on the main pan wasn't installed right and hadn't been plugged, so water was dripping out where it shouldn't. On top of that, the secondary pan under the unit wasn't capped, which let water in that pan run straight onto the ceiling below. We corrected the drain setup and capped the pan so water goes where it's supposed to instead of into the ceiling.
  • Topped off refrigerant on an aging R-22 system, off Verdun Avenue, Greenville, SC. This Goodman system was low on charge and not cooling like it should. We hooked up gauges and found the pressures well below where they needed to be. Added a pound of R-22 and the system came back up to proper operation, cooling normally again. That said, this unit has a refrigerant leak somewhere in the system, so this fix is a temporary one. R-22 is an older refrigerant that's being phased out, and repeated topping off isn't a long-term solution. System replacement recommended
  • Replaced a failed capacitor to restore cooling, off Mary Street, Greenville, SC. This system had stopped cooling, and a check of the outdoor unit found the problem: a failed 35/5 µF capacitor. That part is what gets the compressor and fan motor started, so once it fails the system can't run. We swapped in a new capacitor, then checked the compressor and fan motor amp draws against their rated loads, inspected the contactor, and checked the refrigerant pressures. Everything came back within spec. Cooling was restored and the system was left running properly.
  • Replaced a failed capacitor on a Lennox condenser, off Old Augusta Road, Greenville, SC. The upstairs system had stopped cooling, and the outdoor unit checked out with a bad 35/5 dual run capacitor. That part gives the compressor and fan the jolt they need to start up, so once it fails the unit either won't start or struggles to run. We swapped in a new capacitor and confirmed the system was pulling proper charge and pressures afterward. It's back up and cooling normally.

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