About Us

Black and white Miller's Area Heating truck.Miller’s Area Heating and Air Conditioning was founded in 1948 by two zealous hardworking men known in town as the Miller brothers. Jim and Ray Miller started with just one truck and a truckload of know-how and integrity. They found the town of Grayslake an ideal place to build their dream; so a location in the center of town was chosen as their business location, and after all these years the address is still the same.

In 1975, after 27 years in the HVAC business, Ray decided he wanted more of his time devoted to fishing and less time devoted to work; so he sold the company to Jim. Jim obviously had a plan of his own because at about the same time Ray sold his portion of the business, Jim’s son, John, was growing into just the man Jim needed to replace Ray.

Miller's Area Heating Certificate.Father and son worked together successfully until 1993 when Jim sadly lost his battle with cancer. Since then, John has been the driving force behind Miller’s Area Heating and Air Conditioning. John Miller is continuing his family’s dream. After nearly 70 years in the heating and cooling business, the goal is still the same – To operate with utmost integrity, to keep up with the latest technology and education available, and to deliver great service and products.

We offer a wide array of services to our customers which include:

  • Maintenance, Repair, and Replacement
  • Retro Fit
  • Custom Design
  • Renovation
  • New Construction
  • Gas Piping
  • Ductwork
  • Energy Recovery Ventilation
  • Ultraviolet Lights
  • Water Heaters
  • Whole House Generators
  • In-Floor Heating
  • Free On-Site Evaluation of your Needs
  • 24-Hour Emergency Service

We offer a wide array of products to our customers which include:

  • Furnaces
  • Air Conditioners
  • Ductless Systems
  • Air Cleaners
  • Humidifiers
  • Zoning Systems
  • Integrated Control Systems
  • Boilers
  • Radiant Heat
  • Hot Water Heat
  • Garage Heaters

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.