Just a few of our many 5 star reviews:

Gene Ragone, Elgin 

Very impressed with One Call Heating & Cooling. Brian installed an April Air humidifier and I'm very pleased. He arrived on time and did an excellent job. He is honest and prices are reasonable. I highly recommend him. 

Kelly Dz, Huntley

I contacted One Call for a quote on a whole house humidifier. They came out same day and were able to provide a quote before leaving. (This was after waiting 3 weeks for a quote from a competitor) Had my unit installed 4 days later. Brian was extremely professional and walked me through every step of the installation process. Highly recommend!! 

Gregory Wolfinger. Elk  Grove Village

I have trusted Brian to service my heating & cooling for 6 years. I would not trust anyone else to do this. I just had a new heater installed in my condo and it ended up being a customized job that took longer than expected. Brian was able to quickly determine a solution to each problem. I would recommend One Call Heating & Cooling to anyone. 

John Schwartz, Algonquin

Brian has been servicing our furnace and AC for years. He is always prompt, courteous and professional. I don't what I would do if he weren't available to take care of our HVAC. I think that he is the BEST. 

Marjorie O'Neill, Algonquin

We've been having Brian service our heating and cooling systems for many years. We trust that everything will be taken care of promptly and with care! Brian is very conscientious, knowledgeable, on time, and respectable! A great person to do business with! 

Jeff Yelton, Algonquin

We have greatly benefited from Brian's expertise and quality service for over 15 years. Brian has always been reliable, responsive, honest, and trustworthy. His integrity is noticeable and he has always maintained a customer centric approach. We would gladly recommend Brian and One Call Heating and Air Conditioning for all your residential HVAC needs. 

Megan Homfeldt Ahern, Crystal Lake

Highly recommend Brian for all your HVAC needs. Brian is reliable and fair. He doesn't try to sell you unnecessary products or services. He came out for a furnace clean that a different company had installed new last year. Upon further inspection, Brian found many cut corners the other technicians made installing my new unit. He promptly fixed all issues so that I can rest easy. Brian at One Call Heating & Cooling will have all my future business. 

Melissa Runkel, Algonquin

We used one call heating and cooling to prepare the unit for these upcoming cold nights. Brian was very professional, explained everything thoroughly and did a great job!  We turned on the furnace last night since 62 was even a tad bit too cold for me. We recommend using Brian to get your furnace tuned up and ready to go for the remainder of the season’s cooler nights & for winter.  Thank you Brian

Paul M. Heinze, Barrington

We are delighted to encourage every home owner to reach out to Brian at One Call Heating and Cooling in West Dundee. There is a calmness and confidence that is always in our minds with the change in every season knowing that "One Call" has us prepared and protected. 

Melissa Day, Lake in the Hills

Matt put our AC in at our house. it's been a year and it's still very cold! 

Jenny Pate, Dundee

We have used Brian for numerous repairs over the years.  I highly recommend him to anyone needing anything done with their HVAC system! Very knowledgeable, reliable, and does good work. 

Local Press: