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Air Conditioner Repair

Your Trusted Source for Carol Stream AC Repair

DuPage County’s Go-To Contractor


Fixing Broken ACs Since 2019

You're looking forward to getting home to your AC after a long day on the town. But, when you open your front door, the air inside is almost as muggy as what's outside. What gives? It looks like you might have a problem with your heat pump or air conditioner.

Summers in Carol Stream and Bloomingdale can be brutal. That’s why a home with reliable air conditioning is on the top of many buyer’s shopping lists. When your AC unit stops working, you really appreciate the difference it makes. Instead of suffering through the heat, give Gray's Heating & Cooling a call. Whether you end up needing a simple AC repair or a full AC replacement, our local HVAC experts are here for you.

Ready to get your AC fixed? Call (630) 283-7981 now to request an estimate for AC repair in Carol Stream.

How to Tell When It’s Time to Call an AC Expert

You rely on your air conditioner to keep you cool in Illinois's hottest months. Without it, your home will soon be a sticky sauna. Fortunately, your AC unit typically hums along just fine. It pulls and cools air from outside before dispersing overheated air elsewhere. In your little safe haven, it can be easy to forget that it's 90 degrees outside.

But, sometimes, the AC process stops or sputters. Unfortunately, unless it’s a full-on breakdown, most homeowners don’t know when it’s time to call a Carol Stream-area HVAC contractor. Here’s a shortlist of circumstances when it's necessary to pick up your phone:

  • The unit hums but refuses to turn on
  • You can’t trigger the AC on from the thermostat
  • You hear strange noises or feel vibrations
  • You see water pooling around your air conditioner
  • The fan runs but the air coming out remains hot
  • The unit abruptly ceases operation

If you notice any of the above problems, don’t panic. Our local HVAC experts can help! Contact us at (630) 283-7981 to schedule an appointment for AC repair in Glendale heights or Carol Stream.

The Most Common Causes of AC Failure

You might be wondering why your air conditioner in Carol Stream needs repair. Maybe it’s only a few years old. The summer in Illinois has been really mild. Or, you just had a tune-up done a few weeks ago. This confusion is understandable. But these things may not be connected to your breakdown. Just like with your car, there are dozens of components that can cause your air conditioner to stop cooling. This doesn't even include things like air handlers, thermostats, and your furnace's blower motor.

But, like with most things, there is a tendency toward the 80/20 rule. Most AC issues in Carol Stream have similar root causes. And, after many years of HVAC experience, we’re easily able to identify them. These typical suspects include:

  • Faulty Electrical Components
  • Refrigerant Leaks
  • Frozen Coils
  • Damaged Fan Blades
  • Bad Compressors
  • Faulty Thermostats
  • Skipped Maintenance Visits
  • Old age and rust

You might be tempted to go to YouTube or Google to try and identify which of the above is to blame for your AC problem, but that isn't a good idea. It can lead to you wasting money on unnecessary parts or even causing a dangerous short in the system. If left unchecked, these errors can be deadly. So, when you need AC repair in Carol Stream we suggest reaching out to a professional HVAC contractor in Carol Stream instead.

You'd Be Surprised How Different Air Conditioners Can Be

Every make and model of air conditioner is different. Components are housed in different places and buttons may not function the same. That YouTube video about do-it-yourself AC repair rarely matches what you find under the casing. This is one reason we always recommend leaving cooling service in Carol Stream to a licensed Carol Stream HVAC professional.

We Work on All Air Conditioning Brands

You might be wondering if we can fix your air conditioner. Maybe it's almost twenty years old and sounds like a dinosaur. Or, perhaps, it's manufactured by some little-known European brand. Well, you can rest easy. At Gray's, we’ve spent years familiarizing ourselves with the quirks and requirements of various AC models. That means we have the expertise to fix equipment from any brand including these more well known names:

  • American Standard
  • Bryant
  • Carrier
  • Goodman
  • Lennox
  • Trane
  • Rheem
  • York
  • Frigidaire
  • Amana
  • Coleman
  • Daikin
  • Mitsubishi
  • Gree
  • Fujitsu

Don't fret if your air conditioner brand isn't on our list! We have utmost confidence in our AC technicians' skills to handle almost any system. And, even if what you have installed is an air handler or a heat pump, we remain your go-to resource for speedy and proficient AC repair in Carol Stream.

Trust Us to Fix Any AC Problem in the DuPage County Area

When you need AC repair in Carol Stream, Glendale heights, or Bloomingdale, Gray's is the company to trust. Our local HVAC company has been serving the AC needs of the area for over many years. This makes us uniquely qualified to handle any-sized problem or concern. Our air conditioning contractors service all models and makes of air conditioning equipment including Trane, American Standard, Carrier, and Goodman. We also promise to treat every customer with the respect and autonomy they deserve. Please reach out to us by phone or form to schedule your AC repair, maintenance, or installation in Carol Stream!

HVAC equipment in front of Gray's logo

Optimize Your Comfort in Carol Stream with Our Cooling Services


Everyone in Carol Stream and Bloomingdale is familiar with the bitterly cold weather common in Illinois. This kind of winter weather quickly becomes unbearable, with chills that seep right through your coat, brutal gusts of wind, and homes with floors as frigid as icicles.

Gray's can help you fight off the bitter chill of a Illinois winter. Our company offers competitive rates on service for heat pumps and furnaces.

Ready to have a cool home again in DuPage County? Call (630) 283-7981 today.

Gray's uniform with glasses and hat

No Shades of Gray in Our Customer Reviews

Customers in Carol Stream and Bloomingdale universally appreciate our HVAC services.

Cost-Effective and Fast Furnace Replacement
Excellent experience with Gray's. They provided a very competitive quote to replace my furnace, and once I gave them the go-ahead, they had a technician on site within 15 minutes—that level of responsiveness is rare. The team was professional, efficient, and easy to work with throughout the process. Highly recommend Gray's for anyone looking for fast, reliable, and fairly priced HVAC service.
S.M Suhail
Excellent Residential and Commercial Furnace and AC Service
I’ve had the pleasure of working with Gray's both personally and professionally. They’ve handled my regular furnace and AC maintenance for many years, always to my satisfaction. When it came time to replace my furnace, their expertise with our complex setup made it an easy decision to trust them with such a significant investment. Professionally, the company I work for also relies on Gray's to provide reliable and cost-efficient service to nearly 200 condo associations across the Chicagoland area. Their staff is friendly, knowledgeable, helpful, and patient — truly a pleasure to work with.
Jacqulin Goodlove-Schroeder
World-Class Furnace and Heat Pump Installation
My experience with Gray's was world class. From the initial estimate walk through in my home, to the installation of my new heat pump and furnace, the experience was pleasant the whole way through. The entire process with Gray's was efficient and effective, just like our new HVAC system. They've found the perfect combination of new school technology and old school relationship building. I feel like I'm in the right hands going forward!
Drew Doster
Friendly Late-Night HVAC Service
Gray's, thank you for sending Anthony to us. It was a late night emergency call. He was very friendly, courteous, knowledgeable and extremely professional. We will definitely keep your company in mind should we need any additional service. Thank you!
Hector R O
Respectful, Informative, and Fast AC Repair
We had Gray's come out to see why our AC unit wasn’t cooling correctly. They were able to come out right away, then figured out we had a small leak. We were given options by the tech that made me feel like I wasn’t being forced into a decision I didn’t want to make like I’ve felt from other companies. I wasn’t being talked into buying a whole new system, which was very important to me. Kirby was able to fix everything up that day and we had cold AC in under 3 hours. The office staff were easy to deal with. I also spoke to the owner, Dan, when he followed up with me and he was super friendly and professional.
Jonelle Salinas
Efficient AC Repair and Helpful Maintenance Tips
I recently had Sergio and Eric come over to update our AC unit for the summer, and I couldn't be more pleased with their service. From the moment they arrived, their professionalism was evident. They thoroughly inspected our unit and quickly diagnosed the issue causing it to shut off unexpectedly. Not only did they fix the problem efficiently, but they also provided us with excellent recommendations to prevent future issues. Their expertise and friendly demeanor made the entire experience seamless. I highly recommend Sergio and Eric for anyone in need of AC maintenance or repairs.
Marcus Howard
Effective Heat Exchanger Cleaning Fixed Furnace Fast in Sub-Zero Weather
We were in desperate need of help. Our furnace had stopped working and the sub-freezing temps were expected to drop to zero. Panic was setting in. But, Gray's was able to send their skilled technician, Sergio, who arrived almost two hours ahead of schedule. Sergio, diligently and expertly examined the furnace. Eventually, he diagnosed that a very dirty heat exchanger was causing poor airflow causing the system to shut down. He then spent a considerable amount of time in a very cramped space cleaning the suspect part. Eventually, he emerged, dirt smudged on his face with a bag filled with dirt. The system restarted and we are not in danger of suffering from hypothermia.
Kalman Fortoloczki

Serving Towns Across the DuPage County Since 2019


  • Addison
  • Arlington Heights
  • Aurora
  • Bartlett
  • Batavia
  • Bensenville
  • Berkeley
  • Bloomingdale
  • Burr Ridge
  • Carol Stream
  • Clarendon Hills
  • Darien
  • Des Plaines
  • Downers Grove
  • Elgin
  • Elk Grove
  • Elk Grove Village
  • Elmhurst
  • Eola
  • Fox Valley
  • Geneva
  • Glen Ellyn
  • Glendale Heights
  • Hanover Park
  • Hinsdale
  • Hoffman Estates
  • Indian Head Park
  • Itasca
  • Lisle
  • Lombard
  • Medinah
  • Mount Prospect
  • Naperville
  • North Aurora
  • Oak Brook
  • Oakbrook Terrace
  • Plato Center
  • Rolling Meadows
  • Roselle
  • Saint Charles
  • Schaumburg
  • South Elgin
  • Streamwood
  • Villa Park
  • Warrenville
  • Wayne
  • West Chicago
  • Western Springs
  • Westmont
  • Wheaton
  • Willowbrook
  • Winfield
  • Wood Dale
  • Woodridge

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Aerial view of DuPage County neighborhood