Top-rated heating and air conditioning pros.

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

There are 27 highly-rated local heating and air conditioning pros.

TRUSTED BY MCHENRY, 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 Mchenry

Avatar for G & R Heating & Air

G & R Heating & Air

4.51(
98
)
Approved Pro

G & R Heating & Air

4.51(
98
)
Approved Pro
Customers say: Super punctual
191 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!

"Very impressed with G & R Heating & Air! They arrived on time and got our heater running perfectly. Honest pricing and excellent customer care. Will definitely call them again."

Max G on November 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!

"Very impressed with G & R Heating & Air! They arrived on time and got our heater running perfectly. Honest pricing and excellent customer care. Will definitely call them again."

Max G on November 2025


Avatar for Master Services, Inc.

Master Services, Inc.

4.22(
46
)
Approved Pro

Master Services, Inc.

4.22(
46
)
Approved Pro
Customers say: Super punctual
84 local quotes requested
35 years of experience

Master Services is a world-class provider of residential home services such as: Plumbing, Heating, Air Conditioning, Indoor Air Quality and Drain Cleaning. These Products and services are for improving comfort, reliability, peace of mind, plus cleaner, fresher, and healthier homes. In addition to scheduled service checks, repairing of existing equipment, and installation of new equipment, we can help you find ways to reduce your energy bills through a thorough cost-benefits analysis. We have an extensive history of repair service on all brands of plumbing, central air conditioning and heating systems. Master Services, Inc provides quality workmanship with professional, dependable, and courteous service with our "Fixed Right or It's FREE!"™ We offer 24-hour emergency service so that you can count on us to be there when you need us the most. Our certified technicians use state-of-the-art technology to diagnose and repair existing systems and always use the finest new equipment for installations in the industry. Furthermore, we have a patented Straight Forward Pricing Guide™ so you know what the price is before we do the work and you are never charged by the hour. How many companies are willing to show you their price books? You can count on Master Services to do the job right. We service all brands of plumbing, heating and air conditioning equipment.

"Wonderful. They installers and service techs were very courteous, professional and knowledgeable. Would absolutely recommend to anyone looking for a great company to start a relationship with"

Daniel G on February 2023

Master Services is a world-class provider of residential home services such as: Plumbing, Heating, Air Conditioning, Indoor Air Quality and Drain Cleaning. These Products and services are for improving comfort, reliability, peace of mind, plus cleaner, fresher, and healthier homes. In addition to scheduled service checks, repairing of existing equipment, and installation of new equipment, we can help you find ways to reduce your energy bills through a thorough cost-benefits analysis. We have an extensive history of repair service on all brands of plumbing, central air conditioning and heating systems. Master Services, Inc provides quality workmanship with professional, dependable, and courteous service with our "Fixed Right or It's FREE!"™ We offer 24-hour emergency service so that you can count on us to be there when you need us the most. Our certified technicians use state-of-the-art technology to diagnose and repair existing systems and always use the finest new equipment for installations in the industry. Furthermore, we have a patented Straight Forward Pricing Guide™ so you know what the price is before we do the work and you are never charged by the hour. How many companies are willing to show you their price books? You can count on Master Services to do the job right. We service all brands of plumbing, heating and air conditioning equipment.

"Wonderful. They installers and service techs were very courteous, professional and knowledgeable. Would absolutely recommend to anyone looking for a great company to start a relationship with"

Daniel G on February 2023


Avatar for John B Ventures LLC

John B Ventures LLC

4.88(
210
)
Approved Pro

John B Ventures LLC

4.88(
210
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
23 local quotes requested

Project maintenance and installation - John B Ventures LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"John was very nice and patient with our questions. He was very knowledgeable and did a great job. "

Jose S on November 2025

Project maintenance and installation - John B Ventures LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"John was very nice and patient with our questions. He was very knowledgeable and did a great job. "

Jose S on November 2025


"Easy scheduling, great knowledge, super friendly. Would recommend 10/10"

Daniel B on May 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!

"Easy scheduling, great knowledge, super friendly. Would recommend 10/10"

Daniel B on May 2025


Avatar for Walnut Creek Designs Inc.

Walnut Creek Designs Inc.

5.00(
2
)
Approved Pro

Walnut Creek Designs Inc.

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

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.

"I originally contacted Jay Cope of Abate Retoration. I had water coming in my basement from a crawlspace and basement windows, that I had another party attempt to fix. Adrian and Jay work together. These guys are amazing. The stiuation was analyzed, and quoted in a few days time. I was sold on the service the first day. They also did an encapsulation and covering of 9" tiles on an upstairs floor. They worked super hard and put in long days, as I had an environmental inspection deadline to meet. I would certainly recommend their services to anyone. Thanks so much to these 2 guys and their crew members. After running my own service business for almost 40 years, I am very pleased to have been served the way I did my cusomers."

Bill S on March 2023

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.

"I originally contacted Jay Cope of Abate Retoration. I had water coming in my basement from a crawlspace and basement windows, that I had another party attempt to fix. Adrian and Jay work together. These guys are amazing. The stiuation was analyzed, and quoted in a few days time. I was sold on the service the first day. They also did an encapsulation and covering of 9" tiles on an upstairs floor. They worked super hard and put in long days, as I had an environmental inspection deadline to meet. I would certainly recommend their services to anyone. Thanks so much to these 2 guys and their crew members. After running my own service business for almost 40 years, I am very pleased to have been served the way I did my cusomers."

Bill S on March 2023


Avatar for Growchy Industries

Growchy Industries

New on AngiNew on Angi
Approved Pro

Growchy Industries

New on AngiNew on Angi
Approved Pro
4 years of experience
Free onsite estimate

With over 15 years of experience in the HVAC industry, Growchy Industries is who you need to take care of your commercial, industrial, and residential mechanical needs. We handle everything from the initial consultation to making sure your equipment runs perfect every single time. You will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

With over 15 years of experience in the HVAC industry, Growchy Industries is who you need to take care of your commercial, industrial, and residential mechanical needs. We handle everything from the initial consultation to making sure your equipment runs perfect every single time. You will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!


"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 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
312 local quotes requested

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 ThermaTek Heating and Air

ThermaTek Heating and Air

4.73(
324
)
Approved Pro

ThermaTek Heating and Air

4.73(
324
)
Approved Pro
Super Service Award
Customers say: Quick response
100 local quotes requested
7 years of experience

Welcome to ThermaTek Heating and Air. We are excited to exceed your expectations! As industry professionals, we will handle all your needs with the high-quality expertise and attention to detail your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us today for your free estimate!

"Within an hour Therma Tek responded and had our unit fix! Fast, reliable and friendly. Highly recommend! Jeremy and Darren are awesome!"

Michael P on December 2025

Welcome to ThermaTek Heating and Air. We are excited to exceed your expectations! As industry professionals, we will handle all your needs with the high-quality expertise and attention to detail your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us today for your free estimate!

"Within an hour Therma Tek responded and had our unit fix! Fast, reliable and friendly. Highly recommend! Jeremy and Darren are awesome!"

Michael P on December 2025


Avatar for Premier Comfort Heating & Cooling LLC

Premier Comfort Heating & Cooling LLC

5.00(
1
)
Approved Pro

Premier Comfort Heating & Cooling LLC

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
32 local quotes requested

Here at Premier Comfort Heating & Cooling LLC, we take pride in providing the best services and satisfying our customer needs. We specialize in Air Conditioning Repair, Air Conditioning Contractor, Heater Contractor, HVAC Contractors, Heating Equipment Supplier, Heating Repair, HVAC Contractor, Air Conditioning Contractors, Air Conditioning, Heaters, Heating and much more. We look forward to your business and serving you. Contact us today (844)467-4822

"It was excellent. They did a great job. It was cool and nice. The price was good. I was totally happy with the work. They cleaned up their mess."

Joe D on July 2021

Here at Premier Comfort Heating & Cooling LLC, we take pride in providing the best services and satisfying our customer needs. We specialize in Air Conditioning Repair, Air Conditioning Contractor, Heater Contractor, HVAC Contractors, Heating Equipment Supplier, Heating Repair, HVAC Contractor, Air Conditioning Contractors, Air Conditioning, Heaters, Heating and much more. We look forward to your business and serving you. Contact us today (844)467-4822

"It was excellent. They did a great job. It was cool and nice. The price was good. I was totally happy with the work. They cleaned up their mess."

Joe D on July 2021

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Heating and Air Conditioning questions, answered by experts

When your AC contactor goes bad, you might hear chattering or buzzing noises coming from your air conditioner. You may also notice that your AC is running but isn’t cooling your home. In some cases, your air conditioner might not even turn on at all. There could also be physical damage, discoloration, or corrosion around the contactor.

Yes. Return air vents are responsible for gathering and pulling in the warmer air. Once they draw it in, your system conditions the air by removing the warmer molecules from it, allowing your air conditioner to dispense the cooler air back into your home. Not only does this create a more comfortable environment for you, but it also keeps your air conditioner from overworking, resulting in lower energy bills. 

It’s not customary to tip HVAC technicians, and most professionals won’t expect it. However, it’s a nice way of showing your appreciation for the work they do, especially if they come out in inclement weather or on a weekend or holiday to fix an emergency issue if your heat or AC goes out in extreme temperatures. A good tip would be between 10% to 20% of the total bill, depending on how above and beyond the tech goes for your repair and on the total cost of your HVAC repair or service. For something like a routine tune-up or scheduled maintenance, tips aren’t expected.

As mentioned above, not all HVAC Schrader valves are necessarily the same. While the valve core and pin or spring size on Schrader valves used for HVAC are generally similar, the valves are not all universal and interchangeable. The size of Schrader valves varies depending on whether it's used in an air conditioner, bicycle tire, or motor vehicle tire.

No, a licensed local AC repair technician must replace AC coils due to the need to handle hazardous refrigerants. Attempting DIY poses risks to your personal safety, as most refrigerants are flammable and toxic. You also risk voiding your warranty with the HVAC company and causing damage to the unit.

The Mchenry, 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.
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