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Average homeowner rating star icon4.7
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Verified heating and air conditioning services reviews

Heating and air conditioning pros in Round Lake Park

Avatar for Optimized Air LLC
Optimized Air LLC
423 Windridge Drive
5.00(
3
)
Approved Pro
Optimized Air LLC
423 Windridge Drive
5.00(
3
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

Every property is unique, and we recognize that a one-size-fits-all approach won't cut it. Optimized Air specializes in crafting personalized solutions tailored to your specific needs. Whether you need a new system installation, repairs, or maintenance, we'll take the time to assess your space and recommend the best-suited options to optimize your indoor comfort and energy efficiency. We are dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities. We look forward to working with you!

"I could tell Justin was experienced and he knew exactly what kind of AC I needed. Everything is working great now!"

Kyle G on September 2023

Every property is unique, and we recognize that a one-size-fits-all approach won't cut it. Optimized Air specializes in crafting personalized solutions tailored to your specific needs. Whether you need a new system installation, repairs, or maintenance, we'll take the time to assess your space and recommend the best-suited options to optimize your indoor comfort and energy efficiency. We are dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities. We look forward to working with you!

"I could tell Justin was experienced and he knew exactly what kind of AC I needed. Everything is working great now!"

Kyle G on September 2023


Avatar for Premier Comfort Heating & Cooling, LLC
Premier Comfort Heating & Cooling, LLC
143 US-12
4.89(
41
)
Approved Pro
Premier Comfort Heating & Cooling, LLC
143 US-12
4.89(
41
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 years of experience

Premier Comfort Heating and Cooling LLC, has built a reputation for quality work with each satisfied customer. Our sense of pride is apparent in every project we complete. Call Premier Comfort Heating and Cooling LLC, today and we'll be there in your time of need.

"They are knowledgeable, professional, prompt, fair and go out of their way to make everything perfect. I would hire them again, and so should you."

Bill C on December 2023

Premier Comfort Heating and Cooling LLC, has built a reputation for quality work with each satisfied customer. Our sense of pride is apparent in every project we complete. Call Premier Comfort Heating and Cooling LLC, today and we'll be there in your time of need.

"They are knowledgeable, professional, prompt, fair and go out of their way to make everything perfect. I would hire them again, and so should you."

Bill C on December 2023


Avatar for G & R Heating and Air, LLC
G & R Heating and Air, LLC
PO Box 78
4.67(
876
)
Approved Pro
G & R Heating and Air, LLC
PO Box 78
4.67(
876
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
197 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!

"Good and fast"

Elodie D on January 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!

"Good and fast"

Elodie D on January 2025


Avatar for Duane Blanton Plumbing, Sewer & Drainage Inc.
Duane Blanton Plumbing, Sewer & Drainage Inc.
600 LONG LAKE DR
4.50(
2
)
Approved Pro
Duane Blanton Plumbing, Sewer & Drainage Inc.
600 LONG LAKE DR
4.50(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
104 local quotes requested

Duane Blanton Plumbing, Sewer, Heating & Cooling has been serving Chicagoland and surrounding areas since 1988. Over 30+ years, we've developed the kind of service that surpasses expectations: a motivated team built on providing full-service support for your home, be it repair, maintenance or install. Our team licensed and certified technicians will guide you through every step of the process, from the initial phone call to service completion. This kind of reliability, transparency, professionalism and customer involvement allows us to develop long-lasting relationships with our clientele.

"."

Keun Y on January 2025

Duane Blanton Plumbing, Sewer, Heating & Cooling has been serving Chicagoland and surrounding areas since 1988. Over 30+ years, we've developed the kind of service that surpasses expectations: a motivated team built on providing full-service support for your home, be it repair, maintenance or install. Our team licensed and certified technicians will guide you through every step of the process, from the initial phone call to service completion. This kind of reliability, transparency, professionalism and customer involvement allows us to develop long-lasting relationships with our clientele.

"."

Keun Y on January 2025


Avatar for Cahill Heating, Cooling, Electric, Plumbing & Sewer
Cahill Heating, Cooling, Electric, Plumbing & Sewer
28983 N Herky Dr
5.00(
8
)
Approved Pro
Cahill Heating, Cooling, Electric, Plumbing & Sewer
28983 N Herky Dr
5.00(
8
)
Approved Pro
Customers say: Quick response
27 local quotes requested
52 years of experience

Cahill Heating, Cooling, Electric, Plumbing & Sewer is 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.

"Miguel and his Cahill team were great! Very courteous and conscientious in regards to cleanliness and care in our home. Worked quickly and seamlessly as a team. Would recommend to anyone needing HVAC service or installation. Our salesperson Molly is great too!!"

Michael M on August 2024

Cahill Heating, Cooling, Electric, Plumbing & Sewer is 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.

"Miguel and his Cahill team were great! Very courteous and conscientious in regards to cleanliness and care in our home. Worked quickly and seamlessly as a team. Would recommend to anyone needing HVAC service or installation. Our salesperson Molly is great too!!"

Michael M on August 2024


Avatar for 24 Hour Home Comfort Services, Inc.
24 Hour Home Comfort Services, Inc.
9209 S. Route 31
4.83(
194
)
Approved Pro
24 Hour Home Comfort Services, Inc.
9209 S. Route 31
4.83(
194
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
63 years of experience

Welcome to 24 Hour Home Comfort Services, Inc.! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you! Check out our website at www.24hrhcsIL.com!

"nothing"

Henry B on February 2023

Welcome to 24 Hour Home Comfort Services, Inc.! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you! Check out our website at www.24hrhcsIL.com!

"nothing"

Henry B on February 2023


For more than 50 years Cahill has provided customers with quality heating, cooling, electric, plumbing and sewer services.

"Very helpful and efficient."

Nicole L on January 2025


Master Services, Inc.
N3481 County Rd H
4.22(
46
)
Approved Pro
Master Services, Inc.
N3481 County Rd H
4.22(
46
)
Approved Pro
Customers say: Super punctual
364 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 G & R Heating & Air
G & R Heating & Air
24 Center Dr
4.48(
93
)
Approved Pro
G & R Heating & Air
24 Center Dr
4.48(
93
)
Approved Pro
Customers say: Super punctual
1044 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!

"Garrett McCracken was really great. He quickly determined the problem, got it fixed and explained everything he was doing."

Jerry J on July 2024

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!

"Garrett McCracken was really great. He quickly determined the problem, got it fixed and explained everything he was doing."

Jerry J on July 2024


Avatar for Dalop Plumbing Heating & Cooling
Dalop Plumbing Heating & Cooling
Serving
New on HomeAdvisorNew on Angi
Approved Pro
Dalop Plumbing Heating & Cooling
Serving
New on AngiNew on HomeAdvisor
Approved Pro
130 local quotes requested
7 years of experience

Dalop Plumbing Heating & Cooling is a premier plumbing and HVAC contractor located in Mundelein, IL, serving the Lake Forest, Highland Park, and surrounding areas. Specializing in reliable and quality services, we offer residential plumbing installation, service & repair for new construction plumbing, water pipes and sewer, radiant heat, tank and tankless water heaters, air conditioners, furnaces, duct cleaning, and more. Founded in 2018, Dalop Plumbing Heating & Cooling is committed to providing our customers with the highest level of service and care. We are passionate about what we do and take pride in the work we deliver. Ask about our Dalop VIP Service Maintenance Plans and contact us today and let us help you with all of your plumbing and HVAC needs! Illinois Plumbing License ID: 055-045212

Dalop Plumbing Heating & Cooling is a premier plumbing and HVAC contractor located in Mundelein, IL, serving the Lake Forest, Highland Park, and surrounding areas. Specializing in reliable and quality services, we offer residential plumbing installation, service & repair for new construction plumbing, water pipes and sewer, radiant heat, tank and tankless water heaters, air conditioners, furnaces, duct cleaning, and more. Founded in 2018, Dalop Plumbing Heating & Cooling is committed to providing our customers with the highest level of service and care. We are passionate about what we do and take pride in the work we deliver. Ask about our Dalop VIP Service Maintenance Plans and contact us today and let us help you with all of your plumbing and HVAC needs! Illinois Plumbing License ID: 055-045212

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Heating and air conditioning services FAQs

Knowing how long your existing HVAC units can last is essential to determine if you need a repair or replacement. Typically, most modern air conditioning units can last between 15 to 20 years, and most furnaces can work properly for 15 to 30 years. If your HVAC system is on the older side and you decide to replace one unit, it might make sense to replace both simultaneously to save on costs and future hassle.

While different HVAC contractors might offer higher or lower prices than competitors, the best time to replace your HVAC system is when customer demand is low. The beginning of summer and the beginning of winter bring the most demand for HVAC systems, so if you can, consider replacing your HVAC units in the early spring or fall. Many HVAC companies offer special off-season coupons that help lower the overall cost.  

The average cost to hire an HVAC contractor is between $50 and $150 per hour if charging hourly. However, some HVAC contractors will charge a flat fee by the type of service they are performing—for example, an inspection can cost between $150 to $500. Keep in mind that emergency repairs—which are made after business hours or around major holidays—generally cost more than scheduled repairs.

Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an unlicensed HVAC technician could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include: 

  • The owner, principal, or relevant manager passed a criminal background check

  • Required to have applicable state and local licenses

  • Maintain an average star rating of 3.0 or better on our network, if they have at least one review

  • Paying to advertise their services

  • Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

The average cost of HVAC repairs is around $350. However, that price can be as low as $100 or as high as $2,000 or more, depending on the repair. For example, replacing a capacitor is a relatively inexpensive repair, ranging from $100 to $500. However, a compressor repair is a more expensive repair, ranging from $750 to $2,000.  

The 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.
A crawl space with insulated ductwork
Mar 14, 2025
Mar 14, 2025
Repairing ductwork in a crawl space is frustrating and difficult, which is reflected in the cost. Learn why limited access results in a premium cost beyond just a simple increase in labor hours.
A duct system in a crawl space
Mar 14, 2025
Mar 14, 2025
The cost to replace ductwork in a crawl space depends on accessibility, size, and whether or not your crawl space requires additional work.
Man removing heat duct
Mar 12, 2025
Mar 12, 2025
Your leaky ductwork may be hiking up your energy bills. We explore the cost of checking air ducts for leaks, which may be worth it for your home.
A puppy sitting in an armchair
Mar 26, 2025
Mar 26, 2025
Ductwork losing energy? Here are six duct sealing methods that will help you get some big savings on your monthly energy bills.
A young woman relaxing in her house
Mar 26, 2025
Mar 26, 2025
Condensation on air vents suggests something is wrong with your HVAC system. Learn how to stop condensation on air vents through preventive measures.
Man removing air filter
Mar 26, 2025
Mar 26, 2025
There might be condensation on your ductwork for a variety of reasons, such as clogged ducts, a dirty air filter, or too much moisture in your ducts.