
Serving Montgomery, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"The technician did a very good job cleaning the hvac ducts."





+81

*The Angi rating for Heating And Air Conditioning Service companies in Montgomery, 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 Montgomery, 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 January 30, 2026

Serving Montgomery, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"The technician did a very good job cleaning the hvac ducts."





+81

Serving Montgomery, IL and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"Highly recommend. Found this company last year on Angie's List and this is the second time using them. I was in a pinch as the A/C went out and we have a little baby. I called and they got someone out the same day. Jeff was great...knowledgeable, friendly and answered a lot of questions! Got the unit working again! These are my go-to HVAC guys!"


Serving Montgomery, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"professional & courteous service. Explained what they were doing and how to improve my HVAC system"





+1

Serving Montgomery, IL and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"HVAC scheduled tuneup performed as requested perfectly. On time and on budget. Left the areas clean and neat. Perfect! They’re the best."





+1

Serving Montgomery, IL and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"Everyone from the sales person to installers were great. I love our new HVAC system!"





Serving Montgomery, IL and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
We are family owned and operated. We service all brands, makes and models. From furnace and water heater repair and replacements, all the way to a leaking kitchen faucet or bathroom toilet. One call REALLY does it all. Faucets, toilets, sinks, drain rodding, water heaters, boilers, furnaces, air conditioners and humidifiers. New construction to radiant heat. You know you called the pros the first time. Licensed, bonded and insured, we offer easy approval and affordable financing as well!

Serving Montgomery, IL and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1922
Free estimates
Emergency services offered
"ARS gave excellent service installing a new Furnace , A/C, and Water heater. They were quick and efficient. Highly recommend"


Serving Montgomery, IL and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"This was our first time needing an HVAC service for our house (AC unit issues) and Ish, Nick and Genaro did a fantastic job! I met with Ish first to diagnose the problem. He is super knowledgeable and was able to answer all my questions confidently and thoroughly. He was honest in explaining our options for our budget. He gave me estimates for multiple different scenarios I asked for and I never felt pushed into the more expensive option (and I am typically quite a skeptic when it comes to these types of things)! He also really took his time while at my house. I didnâ  t feel like I was rushed or that my questions were a bother to him. We decided to replace our whole unit and him and his team were able to come back just three days later! The install was smooth, they cleaned up all the work areas really well, and the whole team is very personable (and dog friendly, which I appreciate)! Overall, our experience was the best case scenario, and we will be using Ish and his team for all our future AC/Furnace maintenance!"


Serving Montgomery, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Francisco of United Heating and Air Conditioning is the greatest, and I will hire him again happily and hope to have him service my system yearly going forward. He came today as promised and found that my thermostat only needed batteries, but my system was otherwise fine. He is very good and extremely honest and informative."





+25

Serving Montgomery, IL and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
Rest Assured HVAC is open Monday - Friday 8am-5pm (regardless of hours listed on Angi/HomeAdvisor). \n \nWe 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. \n \nRest Assured HVAC\nElgin, IL 60124\n(847) 224-2420\nhttps://RestAssuredHVAC.com


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