Guardian Heating & Cooling: A Legacy of Comfort in Chicago and Beyond

The Guardian Story: Keeping Chicagoland Comfortable Since 1985

Guardian Heating & Cooling has been a trusted name in the HVAC industry for over three decades. Founded in 1985 by John and Mary Thompson, this family-owned business has grown from a small local operation to one of the most respected AC companies in Chicago, IL, and the surrounding areas.

Humble Beginnings

The Thompsons started Guardian with a single truck and a commitment to providing top-notch service to their neighbors. Their dedication to quality workmanship and customer satisfaction quickly earned them a loyal following in Northbrook, IL, where they first set up shop.

Expansion and Growth

As word spread about Guardian’s reliability and expertise, the company began to expand its service area. By the mid-1990s, they had established themselves as a go-to HVAC company in Lincoln Park, IL, and other Chicago neighborhoods. This growth allowed them to invest in:

  • State-of-the-art equipment
  • Ongoing training for technicians
  • A fleet of fully-stocked service vehicles

Commitment to Innovation

Throughout the years, Guardian has stayed at the forefront of HVAC technology. They were among the first in the area to offer energy-efficient systems and smart home integrations, always prioritizing their customers’ comfort and savings.

Community Involvement

Guardian Heating & Cooling has never forgotten its roots. The company regularly participates in local events and supports community initiatives. Their annual “Cool Down Chicago” program provides free AC tune-ups to low-income seniors during the hottest months of the year.

Looking to the Future

Today, Guardian continues to thrive under the leadership of the second generation of Thompsons. With a team of over 50 skilled technicians and support staff, they remain committed to providing exceptional AC service in Northbrook, IL, and beyond.

As Guardian Heating & Cooling looks to the future, they stay true to the values that have guided them for nearly four decades: quality, integrity, and a passion for keeping Chicagoland comfortable, no matter the weather.