Top-rated heating and air conditioning pros.

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

Enter your zip and get matched with up to 5 pros

TRUSTED BY MARENGO, 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 Marengo

Avatar for The Handy Veteran

The Handy Veteran

4.97(
138
)
Approved Pro

The Handy Veteran

4.97(
138
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% 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!

"It was our third time using The Handy Veteran and it will not be the last. Kevin and his team are absolutely top notch! Our first job with Kevin was to replace and paint all of the wood and trim in our entire house, replace carpet with LVP flooring on a third of the floors in our 3000sqf home, refaced our fireplace, install a new front door, & paint the entire house. Second job was to repair and paint our large deck. This last job was to replace more floors, remodel our guest bathroom and hang multiple lights fixtures. Our first job was in 2020 and the initial work they did is still perfect. Kevin stands by his work. He is not satisfied until the job is done right and was extremely accommodating to all of our requests. He wanted us satisfied and happy with the work and even made some great suggestions that really enhanced the final outcome. Him and his team are extremely respectful of our time, professional, friendly and trustworthy. Also very fair with their pricing! "

Dominick D on November 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!

"It was our third time using The Handy Veteran and it will not be the last. Kevin and his team are absolutely top notch! Our first job with Kevin was to replace and paint all of the wood and trim in our entire house, replace carpet with LVP flooring on a third of the floors in our 3000sqf home, refaced our fireplace, install a new front door, & paint the entire house. Second job was to repair and paint our large deck. This last job was to replace more floors, remodel our guest bathroom and hang multiple lights fixtures. Our first job was in 2020 and the initial work they did is still perfect. Kevin stands by his work. He is not satisfied until the job is done right and was extremely accommodating to all of our requests. He wanted us satisfied and happy with the work and even made some great suggestions that really enhanced the final outcome. Him and his team are extremely respectful of our time, professional, friendly and trustworthy. Also very fair with their pricing! "

Dominick D on November 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


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 Four Seasons Heating & Air Conditioning

Four Seasons Heating & Air Conditioning

4.54(
2,827
)
Approved Pro

Four Seasons Heating & Air Conditioning

4.54(
2,827
)
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.

"Job well done 👏"

Sharee B on December 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.

"Job well done 👏"

Sharee B on December 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


Avatar for WIN Universal, LLC

WIN Universal, LLC

4.87(
19
)
Approved Pro

WIN Universal, LLC

4.87(
19
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

WIN Universal, LLC, is your best choice in McHenry County and the surrounding communities for all your electrical needs! When it comes to electrical, whether it's small repairs or installing electrical for an entire house, WIN Universal LLC is the way to go! We take great pride in every project we do and our customer's complete satisfaction is our top priority! Make it a WIN! Call us today for a free estimate!

"Ivan came when he said he would and was professional and prompt. Did a great job explaining the situation and solved my problem during the visit. Scheduling was easy and well communicated."

Dean C on December 2024

WIN Universal, LLC, is your best choice in McHenry County and the surrounding communities for all your electrical needs! When it comes to electrical, whether it's small repairs or installing electrical for an entire house, WIN Universal LLC is the way to go! We take great pride in every project we do and our customer's complete satisfaction is our top priority! Make it a WIN! Call us today for a free estimate!

"Ivan came when he said he would and was professional and prompt. Did a great job explaining the situation and solved my problem during the visit. Scheduling was easy and well communicated."

Dean C on December 2024


Avatar for Rest Assured HVAC, LLC

Rest Assured HVAC, LLC

4.85(
10
)
Approved Pro

Rest Assured HVAC, LLC

4.85(
10
)
Approved Pro
Customers say: Quality work
3 years of experience
Free onsite estimate

Rest Assured HVAC is open Monday - Friday 7am-6pm (regardless of hours listed on Angi/HomeAdvisor). We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. 24/7 Emergency Service available. Rest Assured HVAC 11N099 Muirhead Rd Elgin, IL 60124 (847) 224-2420 https://RestAssuredHVAC.com

"Very knowledgeable, very thorough."

Randy M on January 2024

Rest Assured HVAC is open Monday - Friday 7am-6pm (regardless of hours listed on Angi/HomeAdvisor). We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. 24/7 Emergency Service available. Rest Assured HVAC 11N099 Muirhead Rd Elgin, IL 60124 (847) 224-2420 https://RestAssuredHVAC.com

"Very knowledgeable, very thorough."

Randy M on January 2024

...
Showing 1-10 of 1987
Heating and Air Conditioning questions, answered by experts

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

If you’re shopping around for a rooftop AC unit, you may hear them referred to as “package units.” That’s because rooftop AC systems are all-in-one heating and cooling units that connect directly to your home’s ductwork. If your AC repair pro references a package unit, they are referring to the system on your roof.

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

HVAC pros recommend that you replace your AC filter every one to three months to maintain optimal indoor air quality and ensure your HVAC system operates efficiently. However, factors such as filter type, household size, and environmental conditions may influence the frequency of replacement. Regular filter changes help prevent debris buildup, maintain airflow, and prolong the life span of your air conditioning unit.

It depends on the specifics of your warranty. The motor is likely not covered if you’re working with a limited warranty. The same goes for other components like the compressor and evaporator coil. Some extended warranties will cover the blower and fan motor, so read the fine print before signing up. Additionally, the manufacturer may offer a warranty for the parts, including the motor, though there’s likely to be a strict time limit for this coverage.

The Marengo, 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"