24 Hour Heating and Air technician working on an Air Conditioning unit.
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24-Hour Emergency AC & Heating Repair in Greenville, SC

Emergency Furnace and AC repair technicians ready to help

Fast, Reliable HVAC Technicians Dispatched Directly to Your Greenville Home

When the South Carolina heat or a winter cold snap pushes your HVAC system to its limit, you cannot afford to wait days for a fix. Miller’s Heating & Air delivers rapid, around-the-clock emergency air conditioning and heating repairs across the entire Greenville metro area. We bring honest, professional, and affordable HVAC service right to your doorstep when you need it most.

No-obligation estimate on replacements. Upfront, flat-rate pricing.

Residential & Light Commercial

Air condition technician working on an A/C unit with a adjustable wrench.

Serving Historic Neighborhoods and Modern Homes Across Greenville

From older homes near Augusta Road and North Main requiring specialized care to newer residential properties around Roper Mountain Road, our experienced technicians understand the unique demands of Greenville housing. We operate with a straightforward, flat-rate pricing model. That means we thoroughly diagnose your system first and give you a clear quote before any tools come out—ensuring no surprises on your final bill.

24/7 Emergency AC Service

Don’t sweat through a cooling breakdown. Our team provides immediate diagnostic assessments on all air conditioning models, resolving tricky refrigerant leaks, failed compressors, blower motor problems, and electrical issues in a single visit.

Heat Pump & Furnace Repair

Keep your Greenville home warm and safe all winter long. We run comprehensive heating safety checks, testing control systems, cleaning dirty burners, and inspecting heat exchangers to guarantee efficient, worry-free operation.

Energy-Efficient HVAC Installations

Lower your monthly utility costs with a modern, high-efficiency heating and cooling system. We offer completely free estimates on replacements, careful home load matching, and pristine installations backed by robust manufacturer warranties.

Whole-Home Indoor Air Quality

Breathe healthier, cleaner air by neutralizing airborne pollutants. We install whole-house electronic air cleaners, germicidal UV lights, and advanced filtration units that pull dust, pollen, mold, and pet dander from your living spaces.

Preventive Maintenance Tune-Ups

Stop major system failures before they catch you off guard. Our seasonal maintenance plans involve rigorous electrical testing, coil cleanings, and moving part lubrication to maximize performance and extend system lifespan.

Light Commercial Property HVAC

Maintain a comfortable environment for your retail staff, office workers, or commercial tenants. We offer specialized light commercial rooftop unit installations, routine maintenance agreements, and rapid emergency service response.

Air Conditioning Services in Greenville, SC Built Around Your Home

Greenville has grown quickly, yet many of its homes still carry character that new construction can’t copy. A 1940s bungalow off Augusta Road cools differently than a three-story townhome near Unity Park, and a fresh build along the Woodruff Road corridor has quirks of its own. Millers Heating and Air Conditioning LLC works on all of them. Our job is to learn how your particular house moves air, then keep that system performing through sticky summers and the occasional hard freeze.

We offer air conditioning services in Greenville, SC that cover diagnostics, repairs, seasonal upkeep, and full system replacements. Whatever brings you to us, you’ll get a straight answer about what’s wrong and what it takes to fix it. See our full list of HVAC services in Greenville.

AC Service in Greenville That Starts With Listening

Technician testing outdoor AC unit wiring
AC maintenance

AC Services in Greenville, SC for Every Stage of Ownership

  • Seasonal tune-ups that keep newer systems efficient and help satisfy warranty requirements
  • Targeted repairs for failing motors, capacitors, coils, and controls
  • Refrigerant leak detection and repair, rather than endless top-offs
  • Duct inspections that uncover leaks or disconnected runs in attics and crawlspaces
  • Thermostat upgrades for better control and scheduling
  • System replacements when an aging unit costs more to keep than to retire

Air Conditioning Repair Services Greenville Families Can Count On

  • Clogged drain lines that trip safety switches
  • Weak capacitors that keep the compressor from starting
  • Dirty coils that choke airflow
  • Refrigerant leaks at aging joints
Technician using a manifold gauge set on an AC unit

24 Hour Furnace Service in Greenville

Cooling gets most of the attention around here, but Upstate winters bring their share of cold snaps. Overnight lows can dip into the teens, and a furnace that won’t fire on a January night is more than an inconvenience. That’s why we provide 24 hour furnace service in Greenville alongside our cooling work. Learn more about furnace repair and heating repair in Greenville.

Call 864-813-9722 if your furnace is blowing cold air, cycling on and off, making grinding or banging noises, or ignoring the thermostat entirely. If you smell gas, leave the house first and contact your gas utility before calling us. Once it’s safe, we’ll check the ignition system, flame sensor, blower motor, pressure switches, and controls, and restore heat as quickly as conditions allow.

What Sets Millers Apart

Greenville has no shortage of HVAC companies. What we offer is consistency. You’ll talk with people who know the area, technicians who explain their work, and a team that follows through. We price jobs before we start, tidy up when we finish, and never recommend a replacement just to make a sale.

Whether you live near Furman, in the heart of downtown, out toward Taylors, or anywhere in between, we’re ready to help. Call Millers Heating and Air Conditioning LLC at 864-813-9722 to book service.

Frequently Asked Questions

We service most major residential brands, including older systems that some companies hesitate to touch.

Warm air, odd noises, water near the indoor unit, or rising bills usually point to a repair. If everything runs fine but it’s been over a year since service, start with maintenance.

Yes. Our 24 hour furnace service in Greenville covers heating emergencies. Call 864-813-9722 any time.

Heat rises, but duct layout, attic insulation, and airflow balance also matter. We can pinpoint the cause and suggest practical fixes, from balancing dampers to zoning or a ductless mini split, so every floor feels comfortable.

Our HVAC Services in Greenville

Choose a service below to learn more, or call 864-813-9722 for fast help.

AC Repair  •  AC Installation  •  AC Replacement  •  AC Maintenance  •  Ductless Mini Splits  •  Furnace Installation  •  Furnace Repair  •  Furnace Maintenance  •  Heat Pump Services  •  Heating Repair  •  HVAC Maintenance  •  HVAC Services  •  Residential HVAC  •  HVAC Installation  •  HVAC Repair  •  Commercial HVAC

Proudly Serving the Upstate

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Nick Darras
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Awesome company! Went the extra mile to help our family get AC back up and running late at night !
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amanda peden
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Great service! Very responsive! Highly recommend!
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Robert Zende
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I could not believe the quality of work we received for the money we spent. Absolutely an amazing outcome for our family. Highly recommend to anyone!
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Tanner
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Prompt to get to our house! Assessed the situation thoroughly and was able to provide us with a great solution that fit our budget! Highly recommend Micah and crew!
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Jaime Craine
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Called in morning and tech was available to come by same day. Was honest and up front about the issues with my unit, which ended up being a switch, instead of trying to push expensive repairs. Will definitely be using them again in the future. Thanks.
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Brian Ray
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Great service, Micah done amazing, extremely knowledgeable.
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Maria Jimenez profile picture
Maria Jimenez
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I can’t recommend him enough! He came out quickly, diagnosed the problem with my air conditioning, and had it fixed in no time. He was professional, honest, knowledgeable, and took the time to explain everything to me. His work was high quality, and he made sure everything was working perfectly before he left. After dealing with the stress of my AC going out, it was such a relief to find someone reliable who genuinely cares about their customers. If you’re looking for someone dependable, reasonably priced, and experienced, I highly recommend him. Thank you again for the excellent service!
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Justin Binns
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I needed a capacitor at midnight and he picked up on the 3rd ring. Very cheap for late night after hours. Very reliable fella, when I got there he ran me through the process of repairing it myself on a AC unit he had. 5 stars great service.
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Aaron Bossenbery
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I must say to call at 9pm and have a new capacitor installed at 11:30pm is very impressive. Great team and good ppl
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Teresa Abbott
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Wonderfully helpful, did not try to sell me anything and clearly explained what was wrong and how to fix it.

Satisfied with our work?

The Honest Choice for Greenville Home Comfort

True 24/7 Availability

Heating and cooling emergencies don’t wait for regular business hours, so neither do we. Our dispatchers answer your call day, night, or weekend.

Zero Hidden Fees

We price our jobs upfront by the repair type, not by the hour. You authorize the exact cost beforehand, keeping you in complete control.

Local Upstate Experts

We know the South Carolina climate and build long-term relationships with homeowners across Greenville County through hard work and integrity.

Get Fast HVAC Relief in Greenville Today

A broken climate control system is stressful, but getting it fixed shouldn’t be. Contact Miller’s Heating & Air right now to get a certified, professional technician headed your way.

Greenville Dispatch: 864-813-9722

40 Leopard Rd, Fountain Inn, SC 29644

Open 24/7 for all Emergency Services

Our Upstate SC Service Areas

Fountain Inn (Main Office) | Greenville | Simpsonville | Mauldin | Spartanburg | Other Upstate Areas