Customer Testimonials


Gas Furnace Maintenance in Grayslake, IL 60030

“Brian was on time and quickly did the maintenance on my furnace and humidifier. He answered questions knowledgeably” – Michelle O.

Gas Furnace Maintenance in Grayslake, IL 60030

“Great company and service. Professional, prompt and courteous.”

– Chris P.

Gas Furnace Maintenance in Grayslake, IL 60030

“Ben was very courteous and knowledgeable about what he was doing. He seemed to take pride in the service he was doing on the furnace and explained what he was doing and why.”

– Maria Z.

Gas Furnace Maintenance in North Chicago, IL 60041

“Service was completed in a timely manner however, the service appointment was supposed between 1PM and 4PM. and the service technician did not arrive until after four. If you are giver a 3 hour window I would expect them to be there within that time period.”

– Joe S.

Gas Furnace Maintenance in Round Lake, IL 60073

“He was a very good representative… knowledgeable.”

– marlene B.

Gas Furnace Maintenance in Winthrop Harbor, IL 60096

“Paul, as usual, did a great job. He called me when he was going to be just a few minutes late and let me know when he would arrive. When he arrived, he thoroughly cleaned the furnace and serviced my furnace humidifier. I've never had a bad service call from Miller's. I've never had anything to complain about. Miller's has great techs. Paul is definitely one of the best.”

– Judith D.

Gas Furnace Maintenance in Grayslake, IL 60030

“You always do a professional job.”

– Rita Z.

Gas Furnace Maintenance in Gurnee, IL 60031

“From Paula answering the phone to Dan servicing the furnace in the fall and the A/C in the spring, you guys are the greatest!!”

– Rick K.

Gas Furnace Maintenance in Grayslake, IL 60030

“Technician was very friendly and seemed quite knowledgeable. Did a great job!”

– Matt B.

Gas Furnace Maintenance in Lindenhurst, IL 60046

“Our appointment was set for our yearly maintenance on our furnace. The technician was very efficient and very thorough in his work on our furnace. He was very friendly and when he finished and left we were certain he had done a thorough job. Thank you Millers for being such a wonderful company.”

– Glenn L.

Need HVAC Service?

Contact the experts at Miller's Area Heating.

Call us at 847-223-0211!


Miller's Area Heating proudly provides HVAC service to Grayslake, Libertyville, Round Lake, Wildwood, Ingleside, and the surrounding Illinois communities. Visit our service area page for more coverage details, call us at 847-223-0211, or request service online today.