*The Angi rating for Heating And Air Conditioning Service companies in Northfield, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Northfield, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on February 08, 2025
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
At Climate Control King, Inc. we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!
"Unbelievable, great company. Outstanding."
Alex x on September 2023
At Climate Control King, Inc. we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!
"Unbelievable, great company. Outstanding."
Alex x 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
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
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
Welcome to GreenHouse HVAC! We are committed to exceeding your expectations. As experts, we will handle your needs with the high-quality expertise that your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us now!
"Great job at competitive price."
Hector F on December 2022
Welcome to GreenHouse HVAC! We are committed to exceeding your expectations. As experts, we will handle your needs with the high-quality expertise that your home or business deserves. We offer competitive prices and customer satisfaction is our number one priority. Call us now!
"Great job at competitive price."
Hector F on December 2022
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!
"I am extremely happy with them. I have been working with them for almost 30 years. They were very reputable, competitive in pricing and responsive."
Tom L on January 2020
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!
"I am extremely happy with them. I have been working with them for almost 30 years. They were very reputable, competitive in pricing and responsive."
Tom L on January 2020
All Temp is one of Chicago's Award Winning heating, cooling and home comfort company. We provide top-notch sales, service, repair and maintenance at the most competitive prices. We are family-owned since 1938 with more than 85 employees and we do not use sub-contractors. Always feel free to call us with your questions or for sales and service. We provide a free in-home estimate should you need a new a/c, furnace or boiler. We can be reached at 1-800-All-Temp or 773-481-2000 for more information. We are at your service 24/7. Ask for Mike Clark, Erin Wayda or Rick Jacobs. See our website for additional service area.
"Professional and thorough. Central humidifier installed without issue."
Shawn C on November 2024
All Temp is one of Chicago's Award Winning heating, cooling and home comfort company. We provide top-notch sales, service, repair and maintenance at the most competitive prices. We are family-owned since 1938 with more than 85 employees and we do not use sub-contractors. Always feel free to call us with your questions or for sales and service. We provide a free in-home estimate should you need a new a/c, furnace or boiler. We can be reached at 1-800-All-Temp or 773-481-2000 for more information. We are at your service 24/7. Ask for Mike Clark, Erin Wayda or Rick Jacobs. See our website for additional service area.
"Professional and thorough. Central humidifier installed without issue."
Shawn C on November 2024
Intelligent Service has spent the last 40+ years building and maintaining a reputation as the premier licensed home mechanical services company in the Northwest Suburbs and Chicagoland area. Our 24/7 one-stop shop offers services in Plumbing, Heating, Cooling and Drain Cleaning. We are committed to providing professional expertise, enthusiastic service and most importantly lasting solutions! As a family business, we certainly understand your home is your greatest investment and Intelligent honors this belief in numerous ways. Whether our technicians are rolling out the red carpet upon entering your household or calling ahead to confirm arrival time, we pride ourselves on the commitment to providing the customer with a WOW service.
"Jim did an excellent job installing my new water heater. He is very knowledgeable and answered all of my questions. I am very happy with the quality of Jim’s work and his attention to detail. He takes pride in his work and takes the time to do things right."
Roland L on January 2025
Intelligent Service has spent the last 40+ years building and maintaining a reputation as the premier licensed home mechanical services company in the Northwest Suburbs and Chicagoland area. Our 24/7 one-stop shop offers services in Plumbing, Heating, Cooling and Drain Cleaning. We are committed to providing professional expertise, enthusiastic service and most importantly lasting solutions! As a family business, we certainly understand your home is your greatest investment and Intelligent honors this belief in numerous ways. Whether our technicians are rolling out the red carpet upon entering your household or calling ahead to confirm arrival time, we pride ourselves on the commitment to providing the customer with a WOW service.
"Jim did an excellent job installing my new water heater. He is very knowledgeable and answered all of my questions. I am very happy with the quality of Jim’s work and his attention to detail. He takes pride in his work and takes the time to do things right."
Roland L on January 2025
We are a veteran owned and operated HVAC contracting company. We specialize in brand new installations for residential and commercial applications, as well as repair and maintenance.
"I was extremely pleased with the service I received from Priority Air Control. My old AC unit finally failed during an extremely hot week, leaving us uncomfortable. I contacted Priority Air Control, and they were incredibly responsive. Jonathan, the owner, arrived promptly, quickly assessed the situation, and efficiently installed a new unit. I was so relieved to have my cool air back. I highly recommend their efficient and reliable service."
Julian O on January 2025
We are a veteran owned and operated HVAC contracting company. We specialize in brand new installations for residential and commercial applications, as well as repair and maintenance.
"I was extremely pleased with the service I received from Priority Air Control. My old AC unit finally failed during an extremely hot week, leaving us uncomfortable. I contacted Priority Air Control, and they were incredibly responsive. Jonathan, the owner, arrived promptly, quickly assessed the situation, and efficiently installed a new unit. I was so relieved to have my cool air back. I highly recommend their efficient and reliable service."
Julian O on January 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!
"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
Yes, most states require HVAC technicians to be certified, and for good reason. Hiring an uncertified HVAC pro could lead to poor quality work, costly future expenses, and potential code violations. A certified HVAC technician tackling your home projects protects you as a homeowner.
As you browse our pro listings, take note of the “Angi Certified” badge. Angi Certified 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
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.
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.