Top-rated heating and air conditioning pros.

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

Enter your zip and get matched with up to 5 pros

TRUSTED BY UNION, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon1.5k+
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Union

Avatar for The Handy Veteran

The Handy Veteran

4.97(
135
)
Approved Pro

The Handy Veteran

4.97(
135
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
8 years of experience

The Handy Veteran is a veteran owned and operated company. We offer free estimates and stand by our motto of professional and dependable services. We want to be the one stop shop handyman for you. We offer active duty and veteran discounts. BOOKED THROUGH FEBRUARY OF 2026, NOW BOOKING FOR SPRING 2026!

"Brad was awesome! He was so kind and sweet. He took care of the drywall and the painting in the closet. Very professional!"

Anna K on May 2025

The Handy Veteran is a veteran owned and operated company. We offer free estimates and stand by our motto of professional and dependable services. We want to be the one stop shop handyman for you. We offer active duty and veteran discounts. BOOKED THROUGH FEBRUARY OF 2026, NOW BOOKING FOR SPRING 2026!

"Brad was awesome! He was so kind and sweet. He took care of the drywall and the painting in the closet. Very professional!"

Anna K on May 2025


Avatar for Lifeline Plumbing Heating & Cooling

Lifeline Plumbing Heating & Cooling

4.73(
2,157
)
Approved Pro

Lifeline Plumbing Heating & Cooling

4.73(
2,157
)
Approved Pro
Customers say: Super punctual
14 years of experience
Emergency services offered

Lifeline Plumbing, Heating and Cooling is the winner of the Super Service Award each year since 2011, when we started our profile on Angies List. If you are looking for professional Plumbing, Air Conditioning, Heating or any type of HVAC services in the greater Chicago-land, area make the call to Lifeline Plumbing, Heating and Cooling! We put our customers first with everything we do. That is why we offer a comprehensive satisfaction guarantee on all the work we do, and on all the products we install. If you would like to speak with one of our experts and get scheduled for service, call us at (847) 468-0069.

"All in all good service but price too high"

Marian J on May 2025

Lifeline Plumbing, Heating and Cooling is the winner of the Super Service Award each year since 2011, when we started our profile on Angies List. If you are looking for professional Plumbing, Air Conditioning, Heating or any type of HVAC services in the greater Chicago-land, area make the call to Lifeline Plumbing, Heating and Cooling! We put our customers first with everything we do. That is why we offer a comprehensive satisfaction guarantee on all the work we do, and on all the products we install. If you would like to speak with one of our experts and get scheduled for service, call us at (847) 468-0069.

"All in all good service but price too high"

Marian J on May 2025


Avatar for All Temp Heating & Air Conditioning Inc

All Temp Heating & Air Conditioning Inc

4.77(
397
)
Approved Pro

All Temp Heating & Air Conditioning Inc

4.77(
397
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
79 years of experience

Since 1946, All Temp Heating & Air Conditioning Inc, has been serving Chicago's northwest suburbs. By offering old fashioned, quality workmanship and dependable 24 hour service, we have grown along with the communities that we serve. We specialize in servicing and replacing high efficient heating and cooling systems for residential and light commercial applications and have become a leader in our marketplace by offering competitive pricing and exceptional customer service. Being a family owned company, we take pride in our work. Many of our customers have been with us for a number of years and most of our new customers come by referrals from family and friends. We professionally install, service and repair HVAC systems. Give us a call today. Additional DBAs - Carl Woerner Heating & Cooling, Woerner Heating - Carl, All Temp Heating And Air Conditioning. Additional contact phone number - (847) 358-7100.

"Great experience from beginning to end."

Valerie K on May 2023

Since 1946, All Temp Heating & Air Conditioning Inc, has been serving Chicago's northwest suburbs. By offering old fashioned, quality workmanship and dependable 24 hour service, we have grown along with the communities that we serve. We specialize in servicing and replacing high efficient heating and cooling systems for residential and light commercial applications and have become a leader in our marketplace by offering competitive pricing and exceptional customer service. Being a family owned company, we take pride in our work. Many of our customers have been with us for a number of years and most of our new customers come by referrals from family and friends. We professionally install, service and repair HVAC systems. Give us a call today. Additional DBAs - Carl Woerner Heating & Cooling, Woerner Heating - Carl, All Temp Heating And Air Conditioning. Additional contact phone number - (847) 358-7100.

"Great experience from beginning to end."

Valerie K on May 2023


Avatar for G & R Heating and Air, LLC

G & R Heating and Air, LLC

4.67(
887
)
Approved Pro

G & R Heating and Air, LLC

4.67(
887
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
11 years of experience

Stay comfortable in your home or business with heating and cooling HVAC services from G & R Heating and Air, LLC of Gilberts. We specialize in service, repair and new installs. With over 20 years of industry experience, we have the knowledge and understanding to get the job done right. Unlike others in the HVAC industry, we will not nickel and dime you. For us, customer satisfaction is our primary goal. We realize that fair prices and honest work coupled with excellent customer service will keep our customers happy. We are only happy when you are happy! Call us today!

"Workers were great!!! Marcos and Javiar were wonderful!!! Would use again!"

David K on November 2025

Stay comfortable in your home or business with heating and cooling HVAC services from G & R Heating and Air, LLC of Gilberts. We specialize in service, repair and new installs. With over 20 years of industry experience, we have the knowledge and understanding to get the job done right. Unlike others in the HVAC industry, we will not nickel and dime you. For us, customer satisfaction is our primary goal. We realize that fair prices and honest work coupled with excellent customer service will keep our customers happy. We are only happy when you are happy! Call us today!

"Workers were great!!! Marcos and Javiar were wonderful!!! Would use again!"

David K on November 2025


"Great job"

Mark O on August 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Great job"

Mark O on August 2025


Avatar for E.S.P TECH Heating & Cooling

E.S.P TECH Heating & Cooling

4.84(
32
)
Approved Pro

E.S.P TECH Heating & Cooling

4.84(
32
)
Approved Pro
Customers say: True professional
5 years of experience
Free onsite estimate

With years of experience serving the area, we are your solution for all your home heating and cooling needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers. Call us today! Satisfaction guaranteed!

"Ismael was great and I will be contacting him in a couple weeks to clean out my A/C ducts."

Alec T on March 2025

With years of experience serving the area, we are your solution for all your home heating and cooling needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers. Call us today! Satisfaction guaranteed!

"Ismael was great and I will be contacting him in a couple weeks to clean out my A/C ducts."

Alec T on March 2025


Avatar for Innovation HVAC & Construction, Inc.

Innovation HVAC & Construction, Inc.

4.74(
44
)
Approved Pro

Innovation HVAC & Construction, Inc.

4.74(
44
)
Approved Pro
Customers say: Quick response
9 years of experience
Free onsite estimate

Welcome to Innovation HVAC and Construction, proudly serving homeowners in Schaumburg, Illinois and the surrounding areas. With over 8 years of experience, our family-owned and operated business specializes in HVAC, electrical, plumbing and remodeling services. We understand the importance of having a comfortable and functioning home, which is why we offer a wide range of home services to meet all your needs. At Innovation HVAC and Construction, we take pride in our work and always strive for excellence. Our team is fully licensed in each trade, ensuring that you receive top-quality services that meet industry standards. We offer competitive pricing and provide free estimates for all our services, so you can make informed decisions about your home projects. What sets us apart from other home service businesses is our commitment to making the process as stress-free as possible for our clients. We offer emergency services for those unexpected home repairs.

"Hired them for some electric work done in my main bathroom. There was a little hiccup with the bathroom exhaust and its Bluetooth functionality. I called the manufacturer I ended up ordering another one. It costed an extra $89 for the team to come back and have it troubleshooted. The first time around the Bluetooth portion wasn?t connected properly and supposedly the brand new exhaust had some issues. They also left the ceiling dirty, which I had to scrub and clean. Also, I let them borrow some tools that I had to call them back to retrieve. They are overall hard working and personable people, but in my opinion the quality of work and communication could be better. I should have trusted and verified their work and not just assume everything is functioning as it should be before having them leave the first time. "

Philip T on December 2025

Welcome to Innovation HVAC and Construction, proudly serving homeowners in Schaumburg, Illinois and the surrounding areas. With over 8 years of experience, our family-owned and operated business specializes in HVAC, electrical, plumbing and remodeling services. We understand the importance of having a comfortable and functioning home, which is why we offer a wide range of home services to meet all your needs. At Innovation HVAC and Construction, we take pride in our work and always strive for excellence. Our team is fully licensed in each trade, ensuring that you receive top-quality services that meet industry standards. We offer competitive pricing and provide free estimates for all our services, so you can make informed decisions about your home projects. What sets us apart from other home service businesses is our commitment to making the process as stress-free as possible for our clients. We offer emergency services for those unexpected home repairs.

"Hired them for some electric work done in my main bathroom. There was a little hiccup with the bathroom exhaust and its Bluetooth functionality. I called the manufacturer I ended up ordering another one. It costed an extra $89 for the team to come back and have it troubleshooted. The first time around the Bluetooth portion wasn?t connected properly and supposedly the brand new exhaust had some issues. They also left the ceiling dirty, which I had to scrub and clean. Also, I let them borrow some tools that I had to call them back to retrieve. They are overall hard working and personable people, but in my opinion the quality of work and communication could be better. I should have trusted and verified their work and not just assume everything is functioning as it should be before having them leave the first time. "

Philip T on December 2025


Avatar for Four Seasons Heating & Air Conditioning

Four Seasons Heating & Air Conditioning

4.41(
3,062
)
Approved Pro

Four Seasons Heating & Air Conditioning

4.41(
3,062
)
Approved Pro
Customers say: Super punctual
54 years of experience
Free onsite estimate

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - [email protected], [email protected], [email protected]. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"They are opportunist and unethical."

Laura D on November 2025

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - [email protected], [email protected], [email protected]. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"They are opportunist and unethical."

Laura D on November 2025


Avatar for ThermPro Heating & Cooling

ThermPro Heating & Cooling

5.00(
15
)
Approved Pro

ThermPro Heating & Cooling

5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

ThermPro Heating & Cooling We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project.  In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We are a BBB Accredited business so you can rest assured your project will be done on time and to your satisfaction.

"I interviewed 3 other HVAC companies for an AC issue. They were the most professional and explained exactly what was needed and why. They explained the different options to meet my goals. They were timely, clean and went above and beyond the agreed job parameters by flagging a problem with the humidifier. I would highly recommend ThermoPro."

Robin D on May 2024

ThermPro Heating & Cooling We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project.  In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We are a BBB Accredited business so you can rest assured your project will be done on time and to your satisfaction.

"I interviewed 3 other HVAC companies for an AC issue. They were the most professional and explained exactly what was needed and why. They explained the different options to meet my goals. They were timely, clean and went above and beyond the agreed job parameters by flagging a problem with the humidifier. I would highly recommend ThermoPro."

Robin D on May 2024


Avatar for G & R Heating & Air

G & R Heating & Air

4.56(
99
)
Approved Pro

G & R Heating & Air

4.56(
99
)
Approved Pro
Super Service Award
Customers say: Super punctual
Free onsite estimate
Emergency services offered

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!

"The technician arrived on time, quickly diagnosed the issue, and had everything fixed efficiently. They were professional, honest, and took the time to explain the repair. Our AC is running smoothly again?highly recommend them for central AC repair!"

Arthur W on December 2025

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!

"The technician arrived on time, quickly diagnosed the issue, and had everything fixed efficiently. They were professional, honest, and took the time to explain the repair. Our AC is running smoothly again?highly recommend them for central AC repair!"

Arthur W on December 2025

...
Showing 1-10 of 2007
Heating and Air Conditioning questions, answered by experts

You can protect your air conditioner in the winter by turning off the power at the thermostat and performing routine HVAC maintenance in the spring. Regular maintenance, cleaning, and repair of your AC unit helps protect it and extend its life span. If you have a window AC unit, remove it from the window and store it in a dry place during the winter. Window units cannot withstand freezing temperatures. Keeping them in your window also allows cold air to seep into your home.

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

Yes, adding central air can increase your home value by as much as 10%. Generally speaking, prospective buyers prefer a central AC system over a ductless system or room-by-room AC units. That’s because central air conditioning blends into the home easier than individual room air conditioners and typically has less equipment to maintain.

While 72 degrees is a comfortable setting for many people, it’s likely not the most efficient temperature setting for your air conditioning unit. By pushing the temperature up to 75 or 78 degrees, you stand to save money on your energy bill. That said, these temperatures may be too warm to be comfortable for some people and are definitely too warm for most people to sleep comfortably.

It depends on how fast an HVAC technician can resolve the issue. First, if there's a refrigerant leak, you’ll want to keep small children and pets out of the house. Next, you’ll want to turn off the AC unit to ensure no more freon enters your home. Finally, you’ll need an AC technician pro to come to your home and fix the leak immediately. Ultimately, it’s best to leave your home if you discover a freon leak—the risk of exposure is very high, and it’s not worth risking your health to stay.

The Union, 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.

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"