
Serving Lockport, IL and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Repairing Central Air Conditioning System"




*The Angi rating for Air Conditioning companies in Lockport, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.
*The HomeAdvisor rating for Air Conditioning companies in Lockport, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.
Last update on August 18, 2026

Serving Lockport, IL and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Repairing Central Air Conditioning System"




Serving Lockport, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"Andrew and his assistant were very professional in their approach to cleaning our air ducts and dryer vent. The services they provided were totally consistent with how they describe their approach to the service they provide. This included the very helpful before and after pictures taken which would convince anyone of the need to have this work performed in their homes."





+81

Serving Lockport, IL and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"We had a great experience with Four Seasons Heating & Air Conditioning during our recent replacement of our furnace and AC unit. They were very professional and completed the job on time and answered all of my questions. Would recommend them for our Heating, Air Conditioning, Plumbing and Electrical needs."





Serving Lockport, IL and surrounding areas
Approved (Corporate)
In business since 1911
Free estimates
Emergency services offered
"They were able to send out a tech to repair our AC pretty quickly (within a few days), even though this was during a bout of unusually high temperatures. The tech arrived towards the end of the given arrival window; even though he was still within the window, they called me that day to let me know he would be later rather than earlier, which was nice. The tech diagnosed the issue, and discussed options with me and fixed it (low line refrigerant, possible leak). All that was great, and prices seemed reasonable. The only negative part of the experience is that there was an extra charge to de-ice the frozen interior coils. I could have done that in advance if I knew I was supposed to (the tech seemed surprised I hadn't, or that I wasn't told to). Maybe that's obvious to others, but it's not that big of a deal, just an an annoying extra cost."





+10

Serving Lockport, IL and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"The company is so cool handled and installed my new ac unit with class !!! They are my main peeps to call for service when I need it"





+26

Serving Lockport, IL and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"They came even at a busy time to assess what needed to be done. I was given plenty of information and my questions were answered. I expect tomorrow’s furnace instsall will go just as well. I have had ac units and furnaces installed by Miller and been very pleased. A fine company."





+1

Serving Lockport, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Our air conditioning unit went out. They came out immediately. Unfortunately the unit needed to be replaced and they were able to take care of it the next day. Prompt and professional."





+25

Serving Lockport, IL and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1922
Free estimates
Emergency services offered
"Yes, my HVAC Technician Malcolm serviced my AC Unit. He was very professional and did a thorough job. He also gave me recommendations for future upgrades."


Serving Lockport, 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 Lockport, IL and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"The men were very professional and fair. They tried very hard to fix the AC but the unit was deemed beyond repair. It was leaking coolant somewhere. They said they could give me a very good deal on a new AC with all parts and labor included if and when I choose to replace the AC unit with them. Even though the unit was not fixed because it was frankly beyond repair, I am still satisfied by their dedicated effort, honesty and professionalism. I will most likely buy a new AC from One Hour AC of Naperville in the near future."


From average costs to expert advice, get all the answers you need to get your job done.

Need a new AC system? Find out what it costs to install a mini-split in Chicago, IL, and how to hire the right pro to get the job done.

Discover the true swamp cooler installation cost. Learn about average prices, cost factors, and ways to save on your home cooling project.

Choosing between a portable AC vs. swamp cooler comes down to energy efficiency, cooling preferences, and climate. Find out how these systems compare.

Swamp coolers are cheaper to install and run than a central AC unit, but are they right for your home? This guide breaks down what you need to know.

Learn the difference between mini split AC vs. central air. For example, central air has air ducts, but a ductless mini split AC cools without them.