Get matched with top thermostat installers and replacers in Des Plaines, IL

"Richard Savage responded timely. He did a wonderful job installing our our Air Conditioner and Furnace. He was prompt and efficient. He is very customer service oriented and he is very knowledgeable. I would highly recommend his services. Great guy!"

"Excellent service from start to finish. The technician handled our thermostat installation and central A/C repair quickly and professionally. Everything is working perfectly now and the whole process was explained clearly. Very reliable team and highly recommended."

At One Hour Heating & Air Conditioning, we've been proudly serving Chicago-area communities with expert heating and cooling services for over 65 years.\n\nOur reputation is built on delivering legendary service—with every technician fully background-checked, drug-tested, and bringing at least five years of professional HVAC experience to your home.\n\nYou, the customer, are the most important part of our business, and we never forget that.\n\nBe sure to ask about our flexible financing options—we're here to keep comfort within reach.

"Collin did a great job of installing the whole house humidifier for my heat pump furnace. Very happy with both units."

"Val came on a Saturday evening within two hours and replaced my thermostat! His fee was far less than anyone else, and others couldn’t make it until days later. The temps are in the 90’s and I need my AC! I am so pleased at the quality of his work and his friendly professional demeanor!"

"Knowledgeable about ecobee and nest thermostats"

"The service tech(Chris) was very courteous and knowledgeable. I told him before he came that the fan was running intermittently. He said he would be out in the morning with the motor in case that was the problem. Turns out the fan was fine and it was a solenoid that was bad. He could have replaced the fan and the solenoid and made more money for himself and the company. He just replaced the bad solenoid. He fixed my AC in less than half a day during a heat wave and saved me money! If anybody asked if I know good and honest HVAC place I will recommend "Generations"."

"Elvis did a great job today fixing our HVAC and surprisingly charged a very fair and very reasonable professional fee. I definitely will recommend him to family, friends, neighbors. You should try him first before calling other companies. You would be very pleased if you did that. He came on time. He was very professional 100%. I lined up annual project for him to tune up and inspect our HVAC to keep it good running condition."

"Responded within minutes to my service request and was available same day. Successfully installed the smart thermostat. Very happy with his service and would hire him again, if needed."

"Kevin and Brad did an amazing job! They replaced the subfloor that had been damaged by a leak from my toilet, installed new flooring, and put in a new toilet, making the bathroom look brand new. They showed up on time, stayed until the job was completely finished, and made sure everything was cleaned up before they left. Super friendly, professional, and hardworking. I highly recommend them!"