Get matched with top geothermal heating or cooling system installers in Mchenry, IL

"Great! Fast, friendly, and fair. Nice to work with a local, family owned, company that is customer focused with knowledgeable sales and service professionals. Couldn't be happier!"

"The unit was installed a couple of years ago. This visit was for spring checkup. Thomas, the tech, was great. Informative and efficient. I highly recommend this firm."

"My mother contacted Four Seasons Heating and Cooling on 01/26/2026 for a water leak. What should have been a simple service call turned into them replacing her boiler?something that was not needed. The technician arrived at 8:00 a.m. and instead of shutting the water off, allowed it to continue leaking for approximately three hours while he tried to determine ?how my mother?s credit was? so they could charge her for additional work. He even made the comment, ?Oh, there is no way you could afford this in cash,? which was extremely inappropriate and unprofessional. After being pressured into purchasing a new boiler costing nearly $17,000, her tenants were left with NO HEAT because the job was not completed correctly. A second technician had to come out to bleed the old pipes and stated that the original work was done incorrectly. I was on the phone during a call with customer service and had to take over because of how rude and disrespectful they were toward my mother. Once I took over"

"I had a great experience with their HVAC services. They repaired my electrical baseboard heater quickly and made sure everything was working perfectly before leaving. The team was professional, punctual, and very knowledgeable. They also installed our new central A/C system smoothly with no issues at all. Communication was clear throughout the process, and the pricing was fair. Highly satisfied with the quality of work and customer service. I would definitely recommend them for any heating or cooling needs."

"I received a call from Boris shortly after contacting Angie's List on Wednesday. He said he could do the installation on Saturday noon. At 12:00 (Boris +1) arrived and installed the thermostat efficiently and professionally and at a fair price. Checked that the thermostat was working properly before leaving. They were considerate and put on shoe covering when entering our home. I will call him again when service is needed."

"It was excellent. They did a great job. It was cool and nice. The price was good. I was totally happy with the work. They cleaned up their mess."