Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Carol Stream, IL

There are 60 highly-rated local heating and air conditioning pros.

TRUSTED BY CAROL STREAM, IL HOMEOWNERS

4.7
Average homeowner rating
307
Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Carol Stream, IL

*The Angi rating for Heating And Air Conditioning Service companies in Carol Stream, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Carol Stream, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on November 02, 2025

Reviewed in August 2024
For all your heating, ventilation, and air conditioning requirements, I highly recommend CR Mechanical Services. Their ability to address problems efficiently and promptly is truly impressive!
CR Mechanical Services, LLC
Request a quote
Reviewed in July 2023
My AC stopped working on one of the hottest days of the year. I called grays and they sent someone out in no time at all. My unit was fixed and back up and running shortly after. I recommend using Gray’s mechanical for your heating and AC needs.
Gray's Mechanical
Request a quote
Reviewed in June 2023
Good customer service, heating and a/c units installed in 2 days. Great, professional installers.
Four Seasons Heating & Air Conditioning
Request a quote
Reviewed in March 2022
The are very prompt and professional. Have used them exclusively for my AC and heating needs, and very appreciative of the quality of their work.
HACKNEY'S CLASSIC HEATING & COOLING INC.
Request a quote
Reviewed in June 2021
Rick is thorough and honest. We've been using him for a/c and heating work on our home for many years. He doesn't try to sell us on new products but makes sure that our existing HVAC system is working to it's full capacity.
RICK BRODERS HEATING & COOLING
Request a quote
Reviewed in February 2016
Awesome professionalism and service. Have used for all heating and air conditioning service.
Climate Control Services, LLC
Request a quote
Reviewed in October 2015
ng We have been a completely satisfied customer of American Star for over 10 years. In moving to a new home we immediately had American Star in for a furnace check up. They provide not only professional service, but also advise us honestly on the condition of the heater, water heater and air...
American Star Total Home Comfort
Request a quote
Reviewed in June 2015
Todd and Chris of Shamrock Heating and Air Conditioning have been wonderful to us. We bought a new heating and air conditioning unit back in 2012. This year the heater started acting sporadically. They came out immediately and determined the circuit board was the problem. They replaced it no...
Shamrock Heating & A/C
Request a quote
Reviewed in September 2013
pretty standard clean and check of the air conditioner and water heater. The person did not seem to know anything more about air conditioners and water heater to give any more advice or feedback.
One Hour Heating & Air Conditioning
Request a quote
Reviewed in March 2006
Technician was informative, helpful and not in a rush. Really appreciated his honesty. Would use again for HVAC or water heater issues.
Deljo Heating & Cooling
Request a quote

Find Heating and air conditioning pros in Carol Stream

All Temp Heating & Air Conditioning

All Temp Heating & Air Conditioning

Customers say: Quality work

311 local quotes requested

87 years of experience

All Temp is one of Chicago's Award Winning heating, cooling and home comfort company. We provide top-notch sales, service, repair and maintenance at the most competitive prices. We are family-owned since 1938 with more than 85 employees and we do not use sub-contractors. Always feel free to call us with your questions or for sales and service. We provide a free in-home estimate should you need a new a/c, furnace or boiler. We can be reached at 1-800-All-Temp or 773-481-2000 for more information. We are at your service 24/7. Ask for Mike Clark, Erin Wayda or Rick Jacobs. See our website for additional service area.

"Professional and thorough. Central humidifier installed without issue."

Shawn C on November 2024

"Professional and thorough. Central humidifier installed without issue."

Shawn C on November 2024

Energy Services Air Conditioning & Heating Co

Energy Services Air Conditioning & Heating Co

Customers say: Super punctual

Recommended by 91% of Angi customers

83 local quotes requested

At Energy Services Air Conditioning, Heating & Electrical, we go beyond the level of service you expect, and deliver the exceptional results you deserve. From routine system maintenance, to emergency repair, equipment upgrades and complete system install, our goal is to bring more expertise, resources, and professionalism to every job than any other HVAC service provider in Naperville, Aurora, Geneva, St. Charles & Wheaton IL. We offer flexible solutions for spaces large and small, customizing our designs to meet your exact needs, and providing the most cutting-edge products on the market. Cost is determined by the job. Additional Phones: (630) 969-1400, (630) 687-1383, (630) 420-2275. Fax: (630) 420-2096 DBA: GFI Heating & Cooling. Senior Discount: $5.00

"Tech came out and heard my concerns, went over the blower, and found that it had been mis-diagnosed of where the other company who installed it was looking. Hugely appreciated that the tech listened to what I was having a problem with and not exact information provided, and was able to provide me with information to go back to my install company with."

Grant P on October 2025

"Tech came out and heard my concerns, went over the blower, and found that it had been mis-diagnosed of where the other company who installed it was looking. Hugely appreciated that the tech listened to what I was having a problem with and not exact information provided, and was able to provide me with information to go back to my install company with."

Grant P on October 2025

G & R Heating & Air

G & R Heating & Air

Customers say: Super punctual

240 local quotes requested

Free onsite estimate

We are a family owned and operated company, specializing in heating and cooling services, installs, repairs, and more! We personally care for each customer like our own family. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all of the services we offer below and call -- or-- click to schedule a free estimate today!

"Javier very professionally and cost effectively performed an excellent tune-up on my 5-ton single stage outdoor installation air conditioner."

Gary T on August 2025

"Javier very professionally and cost effectively performed an excellent tune-up on my 5-ton single stage outdoor installation air conditioner."

Gary T on August 2025

TR Miller Heating, Cooling, Plumbing and Electrical

TR Miller Heating, Cooling, Plumbing and Electrical

Customers say: Super punctual

22 local quotes requested

17 years of experience

TR Miller Heating, Cooling, Plumbing and Electrical has provided the Plainfield, IL area with excellent HVAC, plumbing and electrical services since 2008. Offering straightforward pricing, emergency services and the latest technology, they will help with all of your home service needs. Call today to schedule your appointment!

"TR Miller Heating, Cooling & Plumbing I think an obvious first step for the company is to be more upfront with pricing. By offering an upfront cost of $79 to assess a plumbing issue seems reasonable. To then have a minimal price that starts at $494 for something as simple as a 45 minute repair seems very unfair. It is similar to a bait and switch--reasonable to ridiculous. I was very specific in my needs--which was to connect two 1" water pipes 4 3/8" apart. I even forwarded a pic before anyone from TR Miller came out to the residence. The explanation from the manager was inadequate and false. Manager stated pricing was based on 50% going to the technician, 40% for overhead, and 10% profit. While I have already gone through the manager's exaggerated pay rate for the technician repair at roughly $250 per hour, Glassdoor site shows a technician hourly salary ranging from $20-$33 per hour. Even at an hourly rate of $50 per hour, a 40 hour per week technician would be at an annual salary of $100k per year-- which is probably closer to reality for pricing. With inflated non-factual pricing to start for labor and then factoring your overhead and profit off of an inflated labor rate, you literally are overinflating pricing by a large margin. Very unfair for a homeowner enticed to use your service which supposedly starts at $79. Will continue to be dissatisfied with my experience with TR Miller. You are a predatory company taking advantage of people. Based on my math, you would have still had great and more fair margins for a 45 minute job charging $250 for the job."

Mel S on November 2024

"TR Miller Heating, Cooling & Plumbing I think an obvious first step for the company is to be more upfront with pricing. By offering an upfront cost of $79 to assess a plumbing issue seems reasonable. To then have a minimal price that starts at $494 for something as simple as a 45 minute repair seems very unfair. It is similar to a bait and switch--reasonable to ridiculous. I was very specific in my needs--which was to connect two 1" water pipes 4 3/8" apart. I even forwarded a pic before anyone from TR Miller came out to the residence. The explanation from the manager was inadequate and false. Manager stated pricing was based on 50% going to the technician, 40% for overhead, and 10% profit. While I have already gone through the manager's exaggerated pay rate for the technician repair at roughly $250 per hour, Glassdoor site shows a technician hourly salary ranging from $20-$33 per hour. Even at an hourly rate of $50 per hour, a 40 hour per week technician would be at an annual salary of $100k per year-- which is probably closer to reality for pricing. With inflated non-factual pricing to start for labor and then factoring your overhead and profit off of an inflated labor rate, you literally are overinflating pricing by a large margin. Very unfair for a homeowner enticed to use your service which supposedly starts at $79. Will continue to be dissatisfied with my experience with TR Miller. You are a predatory company taking advantage of people. Based on my math, you would have still had great and more fair margins for a 45 minute job charging $250 for the job."

Mel S on November 2024

Shavitz Heating and Air Conditioning

Shavitz Heating and Air Conditioning

Customers say: Quality work

Recommended by 93% of Angi customers

25 local quotes requested

Whether you need to have your air conditioning system completely replaced or you just need some basic heating repairs, call the friendly and professional technicians at Shavitz Heating & Air Conditioning. We value our Chicago heating and air conditioning customers and treat them like our family. We want you to be comfortable in your home. That is why we offer a 100% satisfaction guarantee and a lifetime workmanship warranty. Also, if we cannot install a new AC or heating system for you in a day, our technicians will deliver a portable heater or air conditioning system so that you can stay comfortable in your home. Call our team today to schedule HVAC services in the Chicagoland area.

"The technician arrived precisely on schedule and performed a thorough checkup of the heating system, using state-of-the-art diagnostic tools. He also explained the condition of the furnace and helpfully forecasted its likely future."

John P on September 2025

"The technician arrived precisely on schedule and performed a thorough checkup of the heating system, using state-of-the-art diagnostic tools. He also explained the condition of the furnace and helpfully forecasted its likely future."

John P on September 2025

Home Comfort Systems Inc

Home Comfort Systems Inc

Customers say: Super punctual

Recommended by 97% of Angi customers

41 local quotes requested

80% of our jobs are referrals from previous customers. We have never had a BBB complaint in 52 years. Our equipment has a 10 year parts and labor warranty.

"They came out when they said they would, and did a wonderful job."

MIKE N on July 2023

80% of our jobs are referrals from previous customers. We have never had a BBB complaint in 52 years. Our equipment has a 10 year parts and labor warranty.

"They came out when they said they would, and did a wonderful job."

MIKE N on July 2023

Freedom Heating & Cooling

Freedom Heating & Cooling

Customers say: Super punctual

Recommended by 91% of Angi customers

36 local quotes requested

Freedom Heating & Cooling has a tradition of meeting customer needs. From the most complex installation to routine service and maintenance, Freedom Heating & Cooling has the tools, the people, and the products to provide a system that fits your lifestyle and budget. Ask us for references from your neighborhood, and let us show you how we can exceed your expectations in service and performance. Family/locally owned & operated, you’ll be able count on us now and for many years to come. Residential & commercial. Same day service. Certified technicians. Service all makes & models. Competitive pricing. Financing available. 24 hour 7 day emergency service. Call us at 1-847-288-1788 for service or free in home estimate, or for information, call one of our local numbers: Barrington (847) 843-7300, Belwood (708) 344-2225, Chicago (773) 685-5252, Downers Grove (630) 769-1939, Forest Park (708) 771-1894, Franklin Park (847) 451-6100, Glen Ellyn (630) 790-4565, Norridge (708) 453-5323, River Grove (708) 456-1860, Schiller Park (847) 678-5228, Stone Park (708) 338-5000.

"Josh was very professional throughout the installation process and ensured my tenant on-site understood the basics. In addition, Josh sent Miguel the same day to ensure the humidifier was working properly."

Meladee H on September 2025

"Josh was very professional throughout the installation process and ensured my tenant on-site understood the basics. In addition, Josh sent Miguel the same day to ensure the humidifier was working properly."

Meladee H on September 2025

We specialize in all phases of remodeling for your home, business, kitchens, finishing basements, room additions, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"It was amazing experience working with Pete and his entire crew. When he saw our unfinished basement, he came out with the full design and put several plans and options on the table and after few consultations, we finalized the plan. The team finished the whole work on time and got it approved by city. It’s look stunning now and we are enjoying every bit of it."

Anupam B on October 2024

"It was amazing experience working with Pete and his entire crew. When he saw our unfinished basement, he came out with the full design and put several plans and options on the table and after few consultations, we finalized the plan. The team finished the whole work on time and got it approved by city. It’s look stunning now and we are enjoying every bit of it."

Anupam B on October 2024

...

Showing 1-10 of 207

Heating and Air Conditioning questions, answered by experts

There are two main reasons your furnace and AC are turning on at the same time. The first could be that you’re confusing the furnace with the blower. The blower is located in the furnace and will turn on to distribute cool air from the air conditioner through the ductwork in the home. This is normal. If the actual furnace is turning on at the same time as the AC and hot and cool air are coming into the home, it could be a result of incorrect writing to a new thermostat or new systems.

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

Aside from needing HVAC repair, there are times when you may need to replace your unit. HVAC replacement costs $5,000 to $12,500. Here are some telltale signs that your HVAC unit is going bad:

Your unit is 10 years or older.
Your home is very humid.
The unit keeps cycling without producing cool air.
You need to repair the unit frequently.

There are ways to detect a refrigerant leak with several different testing methods. However, most homeowners can figure out something’s wrong with their AC unit by noticing these common signs:

Ice forming on the evaporator coil
Water leaks near the AC unit
Frequent hissing sounds
Increased electric bills
Unit takes longer than usual to cool
Unit is blowing hot air

The cost to add Freon to an AC ranges from $100 to $350. It can increase up to $600 for large AC units requiring much more coolant. The cost also depends on how much refrigerant your unit needs. If only a small amount of Freon leaked out, your cost would be on the lower side. A complete replacement of all the required refrigerant can get expensive.

The Carol Stream, IL homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Paige Bennett
•
Oct 17, 2025Oct 17, 2025
How Much Does It Cost to Move a Furnace? [2025 Data]
Moving a furnace a few feet is not a huge matter. However, moving a furnace to another room or different part of the house will probably cost a few thousand dollars. It's a major job involving numerous different professionals.
Mitchell Grant
•
Oct 30, 2025Oct 30, 2025
How Much Does an Air Duct Inspection Cost? [2025 Data]
Air duct inspections ensure your ductwork is in tip-top shape. Learn all the air duct inspection cost factors that impact what you’ll pay.
Angi
•
Oct 19, 2025Oct 19, 2025
How Much Does Duct Replacement Cost? [2025 Data]
Discover the true duct replacement cost for your home. Learn about average prices, key cost factors, and tips to save on your ductwork replacement project.
Kate Fann
•
Oct 29, 2025Oct 29, 2025
Do Dehumidifiers Prevent Mold?
Humidity and moisture provide the ideal breeding ground for mold and mildew. Here’s how a dehumidifier prevents mold—and what else you can do to keep it at bay.
Taylor Freitas
•
Oct 20, 2025Oct 20, 2025
Should I Replace the Blower Motor or Buy a New Furnace?
When the furnace stops working, you may ask yourself: repair or replace? Find out whether to replace a blower motor or buy a new furnace with this guide.
Audrey Bruno
•
Oct 20, 2025Oct 20, 2025
R6 vs. R8 Ducts: Major Differences and Which One to Pick
All interior ducts are assigned an R-value, like R6 or R8, which indicates how well they insulate. Knowing their differences can help you pick the right ducts for your home.