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Heater Repair

Gray's is Your Source for Heating System Repair in Carol Stream

DuPage County’s Go-To Contractor


Repairing Broken Heaters in Greater Carol Stream for Over many Years

Even if people think of Illinois as a warm place, its winters can still get pretty cold, especially without a functioning heater. Would you know what to do if yours failed in the middle of a February storm? Do you know who to call? First, take a deep breath. There's no need to panic. Gray's Heating & Cooling is just a phone call away.

Our HVAC company has been helping people in Carol Stream fix their broken heaters since our business started in 2019. Tell us about your heating problem, and we’ll send a trained HVAC technician to tackle it. Known for providing prompt, reliable service, we’ve become the go-to source for locals with heating system problems.

Call (630) 283-7981 to schedule heater repair in Carol Stream or Bloomingdale.

Symptoms of a Heater in Need of Repair

Because extreme cold snaps are less common in Carol Stream, a lot of our clients aren’t familiar with the ins-and-outs of heater operation. They often miss smaller signs of heating issues, meaning we only get called when there’s a major, expensive problem. To make fixing your heating problems easier, we advise residents of Carol Stream to stay on the lookout for:

  • Cold Spots: Is your thermostat cranked up to 75 degrees, but your home still feels like an icebox? Is your heater continually turning on and off without maintaining the temperature? This is a common sign of a heater that needs repair. Before calling us, however, double-check that the filter is clean and free of clogging dust.
  • A Yellow Pilot Light: If your heater has a pilot light, is it burning blue or yellow? If it’s the latter, you need to leave your home immediately. This is an indicator that your heater is producing excess carbon monoxide, an odorless gas that can cause death. Before calling us, reach out to your gas company, so they can turn off the line and check for leaks. After that, dial (630) 283-7981 to schedule your Carol Stream-area heater repair.
  • Weird Smells: Note that we’re not referring to the musty odor you get when you turn your unit on for the first time in the season. This odor is normal and results from your unit burning off all the dust that accumulated in the off season. If you notice an odor that refuses to go away, however, it’s time to call a local HVAC expert. To lower this dust level, consider scheduling heater or furnace maintenance in Carol Stream.
  • Odd Noises: A heater on its last leg will start making strange noises. This can be the whining of a worn belt, the squeaking of a poorly lubricated nut, or the creaking of an unstable chassis. Though these sounds may indicate little, they can also be a sign of something that needs attention. Since it’s better to be safe than sorry, we advise you to reach out to us at (630) 283-7981 the first time you notice a problem.
  • Increased Energy Costs: One of the easiest to notice signs of a heater in need of repair are skyrocketing utility costs. If your gas or power bill increases without an obvious explanation, it may be due to a loss of heating efficiency. Fortunately, repairing your heater is often enough to return energy use to normal levels. In some cases, however, we might recommend total heating system replacement.
  • Frequent Cycling: Does your heater rarely turn off? Have you noticed it popping on and off on a fairly regular basis? If either of these are the case, your heater might be in need of repair. While this doesn’t necessitate an emergency, long-term short cycling can drastically shorten your heater’s lifespan. To fix short-cycling in Glendale heights or Carol Stream, give our HVAC technicians a call.

If you notice any of the above problems, it's time to call a local heating company. Our Carol Stream heater repair experts are here to put you back in comfort again.

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The Main Reasons Good Heaters Go Bad

A proper understanding of what heater parts are likely to fail can better equip you to deal with an HVAC emergency. It also makes it easier for you to communicate your heating problem in a clear, comprehensive way. Our many years of experience repairing heating systems in Carol Stream has taught us that the issue is often:

  • Bad Thermostats: Your thermostat tells your heater when to turn on and off. If it's not working right, you’ll have a hard time staying warm. To see if this issue is at the root of your problems, try swapping out the thermostat’s batteries. Also make sure that it’s on and set to HEAT and that the run method selected is AUTO.
  • Ignition Failure: Pilot lights can go out and refuse to light. When this happens, your heater loses the ability to warm the air, leaving you chilled. The main cause of pilot light issues are grime build-up and wear around the burner. If you can’t get it to reignite, reach out to our Carol Stream HVAC company at (630) 283-7981.
  • The Exhaust Blower: The heater’s exhaust blower takes your unit’s combustible output and vents it outside. When this system fails, your unit will cycle on and off before shutting down. Regular heater maintenance can keep the exhaust blower running as intended, preventing unintended shutdowns.
  • Blower Motor Failure: Your heater’s blower motor is what pushes the air through your ducts and out your vent. When it fails, even the most efficient unit won’t be able to heat or cool your home. Typical causes of failure include clogging and overheating. Having your ducts cleaned regularly can take the strain off the blower motor and allows it to run effectively.
  • Bad Heat Exchanger: Your heat exchanger is one of the most vital components of your heating system. It’s responsible for keeping combustion gases separate from the warmed air circulated throughout your home. When this part of your heater fails, carbon monoxide can enter your air supply. Replacing a heat exchanger can be cost-prohibitive. We often recommend replacing your heater instead, especially if the cause of failure is short-cycling because you have too large of a heater installed for your square footage.

Luckily, no matter the size of the issue, our Carol Stream HVAC technicians have likely seen it before. Our well-equipped trucks allow us to fix most common heater issues on our first visit. This means less time spent layering jackets and a return to comfort in your home.

Trust Gray's Heating & Cooling with Your Heater Repair in Carol Stream

When you need your heater repaired or replaced, trust the experts at Gray's! As our long list of happy customers shows, many of your neighbors already do! With years of experience helping people in the Carol Stream area maximize their comfort, we have the know-how needed to get the job done. No matter what you need, our company has well-defined services and procedures in place to ensure consistency and a proper diagnosis.

In other words, when it comes to heater repair in Carol Stream, you can always count on Gray's Heating & Cooling. Contact us at (630) 283-7981 to schedule your heating service.

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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.

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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


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