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TRUSTED BY BOULDER HILL, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon783
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Boulder Hill

"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


Avatar for ARS / Rescue Rooter Chicago

ARS / Rescue Rooter Chicago

4.83(
142
)
Approved Pro

ARS / Rescue Rooter Chicago

4.83(
142
)
Approved Pro
Super Service Award
Customers say: Quality work
104 years of experience
Free onsite estimate

ARS®/Rescue Rooter® Chicago was founded with the goal of providing the highest quality air conditioning, heating, insulation, and plumbing services to our customers. We understand that when it comes to the HVAC and plumbing systems in your home, you need to find a team that is trustworthy, experienced, and able to quickly diagnose and resolve your issues. Our company offers a dependable 24/7 emergency service that is designed to meet your needs, whenever they may arise.

"Great honest and fast"

Antonawa H on November 2025

ARS®/Rescue Rooter® Chicago was founded with the goal of providing the highest quality air conditioning, heating, insulation, and plumbing services to our customers. We understand that when it comes to the HVAC and plumbing systems in your home, you need to find a team that is trustworthy, experienced, and able to quickly diagnose and resolve your issues. Our company offers a dependable 24/7 emergency service that is designed to meet your needs, whenever they may arise.

"Great honest and fast"

Antonawa H on November 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
12 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 Precision Air

Precision Air

4.98(
24
)
Approved Pro

Precision Air

4.98(
24
)
Approved Pro
Super Service Award
Customers say: Quick response
2 years of experience
Free onsite estimate

With over a generation of experience, our honesty and integrity will greet you at the door. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and ensure we keep you updated throughout your project. We provide only premium products with a guarantee of reliability. We value the relationships we build locally and have made it our mission to not only build these relationships but consistently maintain them. We look forward to earning your business!

"Ivan and Omar are the best in the business for ac and heating. FAST SERVICE SAME DAY! Highly recommended!!! Tell the George sent you..."

GEORGE L on July 2025

With over a generation of experience, our honesty and integrity will greet you at the door. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and ensure we keep you updated throughout your project. We provide only premium products with a guarantee of reliability. We value the relationships we build locally and have made it our mission to not only build these relationships but consistently maintain them. We look forward to earning your business!

"Ivan and Omar are the best in the business for ac and heating. FAST SERVICE SAME DAY! Highly recommended!!! Tell the George sent you..."

GEORGE L on July 2025


Avatar for TR Miller Heating, Cooling, Plumbing and Electrical

TR Miller Heating, Cooling, Plumbing and Electrical

4.66(
89
)
Approved Pro

TR Miller Heating, Cooling, Plumbing and Electrical

4.66(
89
)
Approved Pro
Customers say: Super punctual
18 years of experience
Free onsite estimate

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 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


Avatar for T R Miller Heating & Cooling

T R Miller Heating & Cooling

4.66(
77
)
Approved Pro

T R Miller Heating & Cooling

4.66(
77
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
39 years of experience

Searching for a trusted indoor maintenance company in Plainfield, Naperville, or the surrounding Chicago suburbs? Look no further than TR Miller Heating, Cooling, and Plumbing. Call us today to schedule service with our friendly expert team. Struggling without heat in the winter or cool air in the summer is the last thing any homeowner wants. That's why getting reliable help fast when you need it is critical. TR Miller Heating & Cooling is the team that Naperville, Plainfield, and Chicagoland area homeowners trust to keep their indoor comfort systems working flawlessly year round.

"Don C. And Noe E., technicians, An new trainee were awesome sauce, serviced my needs an explained everything an were very pleasant to deal with,I'm happy"

Kris W on August 2025

Searching for a trusted indoor maintenance company in Plainfield, Naperville, or the surrounding Chicago suburbs? Look no further than TR Miller Heating, Cooling, and Plumbing. Call us today to schedule service with our friendly expert team. Struggling without heat in the winter or cool air in the summer is the last thing any homeowner wants. That's why getting reliable help fast when you need it is critical. TR Miller Heating & Cooling is the team that Naperville, Plainfield, and Chicagoland area homeowners trust to keep their indoor comfort systems working flawlessly year round.

"Don C. And Noe E., technicians, An new trainee were awesome sauce, serviced my needs an explained everything an were very pleasant to deal with,I'm happy"

Kris W on August 2025


Avatar for United Heating and Air Conditioning, Inc.

United Heating and Air Conditioning, Inc.

4.51(
198
)
Approved Pro

United Heating and Air Conditioning, Inc.

4.51(
198
)
Approved Pro
Customers say: Quick response
9 years of experience
Emergency services offered

With over 9 Years experience in the HVAC industry, United Heating and Air Conditioning, Inc., is your industry expert. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

"Pricing is good, works was done quickly, very happy with the company "

Brendan B on December 2025

With over 9 Years experience in the HVAC industry, United Heating and Air Conditioning, Inc., is your industry expert. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

"Pricing is good, works was done quickly, very happy with the company "

Brendan B on December 2025


Avatar for Summers, Plumbing, Heating & Cooling - Yorkville

Summers, Plumbing, Heating & Cooling - Yorkville

5.00(
15
)
Approved Pro

Summers, Plumbing, Heating & Cooling - Yorkville

5.00(
15
)
Approved Pro
57 years of experience
Free onsite estimate

At Summers Plumbing Heating & Cooling we try to make service easy & fast! With all of our locations there is a good chance we're helping someone in your neighborhood with their plumbing, heating or cooling issues. We take the stress out of calling a repairman! Our friendly, helpful, and honest technicians are here to make your life easier, not harder than it already is. Our highly skilled, licensed, and trained technicians perform superior work, every time. We are committed to being honest, thorough, and friendly when we arrive at your house for an estimate or repair.

At Summers Plumbing Heating & Cooling we try to make service easy & fast! With all of our locations there is a good chance we're helping someone in your neighborhood with their plumbing, heating or cooling issues. We take the stress out of calling a repairman! Our friendly, helpful, and honest technicians are here to make your life easier, not harder than it already is. Our highly skilled, licensed, and trained technicians perform superior work, every time. We are committed to being honest, thorough, and friendly when we arrive at your house for an estimate or repair.


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
4 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


Midwest Climate Control

4.64(
77
)
Approved Pro

Midwest Climate Control

4.64(
77
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
24 years of experience

Our company specializes in heating and air conditioning ventalation repairs and installs. We guarantee our workmanship on all jobs from start to finish . References will be provided upon request.

"Great company and Awesome Service they fixed my old furnace and it works like new. I recommend Midwest Climate Control to everyone."

Daniel V on November 2025

Our company specializes in heating and air conditioning ventalation repairs and installs. We guarantee our workmanship on all jobs from start to finish . References will be provided upon request.

"Great company and Awesome Service they fixed my old furnace and it works like new. I recommend Midwest Climate Control to everyone."

Daniel V on November 2025

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Heating and Air Conditioning questions, answered by experts

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

The American Society of Heating, Refrigerating, and Air-Conditioning Engineers, or ASHRAE, sets the standard guidelines for air changes per hour in homes and businesses. The International Residential Code, or IRC, also sets ACH requirements for residences and bases those requirements off of ASHRAE standards plus climate specifics related to your location.

You can buy a house with a 15-year-old HVAC system if you inspect the system for performance and budget for a replacement within the next three years. You can also negotiate the price with the sellers. Ask to look at the unit’s maintenance records and energy bills for the last two years to determine the shape of the HVAC system and its operating costs. Spend time in each room of the house to gauge if the HVAC keeps the home at a consistent temperature throughout.

Capacitors are the most frequent part of an HVAC system to experience failure. These components are crucial for starting the motors that power the fans and compressor, but over time, they may become worn or fail due to electrical surges or regular wear and tear. When capacitors malfunction, HVAC systems may experience decreased heating or cooling efficiency, or even total system failure. Replacement or maintenance of capacitors is a common requirement for the optimal functioning of HVAC systems.

The Boulder Hill, 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.

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