*The Angi rating for Air Conditioning companies in Third Lake, 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 Third Lake, 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 June 10, 2026
Serving Third Lake, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Good. AC needed freon. Will possibly replace in spring. If so, will definitely hire again."
+2
Serving Third Lake, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"Excellent work. Nick and Ryan were professional, friendly and thorough. Big difference in air quality in my home. I have recommended them to my friends and family."
+81
Serving Third Lake, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"They were prompt, friendly and knowledgeable. The problem with my A/C was explained to me clearly and I was back in cool, air conditioned comfort in no time!"
+1
Serving Third Lake, IL and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"For all your heating, ventilation, and air conditioning requirements, I highly recommend CR Mechanical Services. Their ability to address problems efficiently and promptly is truly impressive!"
+8
Serving Third Lake, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"I have purchased a yearly heating and cooling maintenance plan from this company for a few years now. The technician that came out today for my air conditioner was on time, pleasant and obviously knew what he was doing. I purchased another plan today."
+20
Serving Third Lake, IL and surrounding areas
Approved
In business since 1911
Free estimates
Emergency services offered
"The air conditioner is working fine."
+10
Serving Third Lake, 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 Third Lake, IL and surrounding areas
Approved
In business since 1973
Free estimates
Emergency services offered
"They've put in a new furnace, water heater, AC, etc. They are very reliable, but not inexpensive. Everything they do is quality and they only work with quality people. I had a problem with the air compressor on our AC right after the warranty had expired. Cahill said that they work with that company all the time and that part shouldn't have gone out that quick. They said they would talk to the company and see that it is made right, and they did."
+7
Serving Third Lake, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Credit card accepted
Customers say: True professional
"Phil serviced our AC today and he was wonderful. He communicated exactly what what wrong with the unit as well as ways to fix the issue in an affordable manner. He took care of the unit quickly and also installed our new thermostat, without adding the cost to his estimate. I would definitely recommend Phil/One Hour to everyone as everything is working like a charm!"
Serving Third Lake, IL and surrounding areas
Approved
In business since 2002
Free estimates
Credit card accepted
"Work was done quickly and the HVAC technician was very helpful."
+42
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.
What’s the average AC replacement cost in Chicago, Illinois? It ranges from $2,748 to $5,472, but most people pay about $4,103. Here’s how to estimate costs.
When your window AC isn’t cutting it, but central AC is too expensive, installing a new ductless mini-split AC may be the cooling solution you’re looking for. Find out what a mini-split costs and how to hire the right pros to get the job done.
Review the disadvantages of mini-split systems as well as the benefits before buying. Review our breakdown of the mini-split pros and cons.
Looking for a new mini-split air conditioning system? Use this guide to mini-split sizes to see how many BTUs you’ll need to heat or cool your home.
Mini split systems are an energy-efficient option to regulate your house’s temperature. Learn more about how mini splits work to cool or heat your home.
