An HVAC Company Serving Carol Stream Since 2013

DONE RIGHT = DONE BY Gray's.

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Offering Heating and Cooling Throughout DuPage County

Don’t let worrying about your furnace repair give you gray hair.

Heating

Our HVAC technicians work with gas and electric furnaces as well as heat pumps. If you need a heating system repaired or replaced and installed in Carol Stream, give us a call.

Furnace Repair Furnace Replacement Furnace Maintenance

Air Quality

The importance of good indoor air quality in Carol Stream often goes unrecognized, despite its impact on your health. With Gray's, you have access to high-efficiency air filters and air scrubbers, which can significantly improve the air quality in your home.

Improve Your Air Quality Purify Your Air Get a Better Filter

Air Conditioning

We repair and service all brands and models of cooling systems in Carol Stream. This includes central air conditioning units, ductless mini-splits, and heat pumps. Calling Gray's means you get skillful cooling service in DuPage County area.

AC Repair AC Replacement AC Maintenance

Commercial HVAC

Gray's provides light commercial HVAC work for throughout DuPage County. This includes restaurants, retail locations, offices, and car dealerships. Some of the commercial units we install, repair, and maintain are VRF systems, packaged rooftop units, and split systems.

Get Commercial Service

Maintenance

Gray's provides maintenance for most HVAC systems in Carol Stream and Bloomingdale. This includes gas and electric furnaces, air conditioners, heat pumps, and commercial systems. We help keep your heating and cooling units operational.

Schedule HVAC Maintenance

Gray's HVAC team with arms folded behind a compressor and furnace

Stay on Top of Your HVAC Care with Preventive Maintenance

At Gray's, we’ve seen plenty of HVAC breakdowns in Carol Stream and Bloomingdale that could have been prevented with regular maintenance.

In fact, annual HVAC maintenance is the best way to not only catch issues that might lead to breakdowns, but also extend the lifespan of your heating and cooling systems.

That’s why Gray's offers Comfort Club, our preventive maintenance plan. Signing up makes it simple to keep your furnace system running year-round. This maintenance plan includes two seasonal tune-ups. One for your heater in the fall, and one for your AC or other cooling system in the spring.

Other advantages of our Comfort Club are:

A dispatch fee discount
Fewer repairs
10% discount on any repair
Priority response from our team
24-hour emergency service

JOIN OUR MAINTENANCE CLUB

Gray's Heating & Cooling team in front of HVAC equipment in their Carol Stream office

The Gray's Story

Gray's was founded in 2013 by Dan Gray. He started out with nothing but his skills, his pickup truck, and some homemade flyers. Our family-owned HVAC company has grown significantly over the years, expanding to 14 talented employees. Dan continues to lead our experts on a mission to deliver reliable, high-quality heating and cooling throughout DuPage County. These solutions are designed to keep homes and businesses comfortable and safe year-round.

Dan first developed a passion for HVAC work because it represented a unique combination of skilled trade work, problem-solving, and a chance to improve people’s everyday lives. Though he started in the commercial sector, his expertise soon expanded to include residential furnace repair and installation.

We believe there is a need for more honest, dependable service in Carol Stream’s HVAC industry. Customers should be able to trust the work being done in their home without worrying about technicians upselling them or doing sloppy work.

Today, Gray's is thriving, thanks to our core values of integrity, accountability, and customer-first service.

LEARN ABOUT US

Why Carol Stream Chooses Gray's for HVAC

We're BBB Accredited: We have been accredited with the Better Business Bureau since 2017 and hold an A+ rating. This accreditation is a testament to our trustworthiness.
Our Company's Local and Family-Owned: We are a family HVAC company and we live in the communities we serve. Our close proximity gives us a strong connection to customers in Carol Stream, Bloomingdale, and Glendale Heights.
Our Emergency Availability: Heating and cooling issues never happen at a convenient time in DuPage County. That’s why our HVAC technicians are available 24/7 for HVAC emergencies.
Our Industry-Leading Guarantees: We provide guarantees on all of our HVAC work. For residential AC installations, we offer a 10-year parts and labor warranty. We are committed to quality, and never suggest unnecessary work or cut corners.
Our Team's EPA Certified: Our Environmental Protection Agency certification shows that Gray's technicians are qualified and skilled at handling and disposing of refrigerants. This means you will be at lower risk of chemical exposure during AC repair or replacement.
We Offer Financing: Sometimes, you need an HVAC system replaced, but you simply don’t have the resources to pay for it. We want our customers to have comfort installed as soon as possible. That’s why we make flexible financing available to qualifying customers through Wells Fargo.

Interested in seeing the quality of our Carol Stream HVAC services? Call Gray's at (630) 283-7981 to make an appointment.

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Connecting with Our Community

At Gray's, we believe in giving back to the community that built us. We wouldn’t be anywhere without our customers in Carol Stream and Bloomingdale. We support a wide variety of charitable causes that make DuPage County a happier place.

We participate in or sponsor a wide variety of community events and causes:

Supporting Youth and Families

We sponsor sports programs for local children. These include Panther Nation Cheer and Football, as well as Cougars Youth Baseball.

Another cause we are passionate about supporting is Elyssa’s Mission, an organization dedicated to youth suicide prevention.

We have even collaborated with Corpus Christi Catholic Church and raised over $13,000, which went to help local families in need of financial support.

Donations for Health and Wellness

We have supported Bags for Life, a cornhole event to raise money for the American Cancer Society, St. Jude Children's Research Hospital and Breast Cancer Awareness.

The Gray family also donates dinners to families at our local Ronald McDonald House. In the past, the Grays have benefited from the crucial services of the Ronald McDonald House, and this is how they pay it forward.

Community Partnerships and Events

At Gray's, we are proud to support local organizations, events, and initiatives that strengthen our community. As our involvement grows, we’ll continue highlighting the partnerships and causes we’re honored to be a part of.

Carol Stream Police Department

Community Outreach

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Optimize Your Comfort in Carol Stream with Our Heating 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 warm home again in DuPage County? Call (630) 283-7981 today.

Keep Your Comfort on Track with Trane

Trane is a brand widely known for its hardiness and impressive lifespans. The reliability of Trane HVAC systems, not to mention their energy efficiency, is why Gray's is proud to offer this brand to our customers in Carol Stream and the rest of DuPage County.

While Gray's is an official Trane dealer, Dan Gray is also a qualified Trane Comfort Specialist. As a Trane Comfort Specialist, Dan has passed extensive testing and acquired expertise in residential and light commercial systems, as well as property management service and installation.

This makes him uniquely qualified to repair your Trane furnace or heat pump.

Have your furnace repaired by a Trane Comfort Specialist. Call (630) 283-7981 to make an appointment for Carol Stream HVAC service.

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

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Serving Towns Across the DuPage County Since 2013

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