Providing Quality You Can Trust
Since 1972
Committed to Serving Your HVAC Needs
When it comes to climate control systems for your building, ensuring that they are updated and well-maintained is vital.
Trust the true professionals at R.J Olmen Company in Glenview, Illinois to keep your HVAC systems running efficiently.
We are an experienced commercial contracting firm with an unparalleled reputation; just ask around!
Our History
During the post-WWII industrial boom, Ronald J. Olmen began his long career as a sheet metal worker, employed by his Uncle Phil Olmen; partner at Jamar-Olmen Company. It grew to be one of the largest HVAC contracting firms in the nation after years of success in the Defense Industry. Jamar-Olmen Co had offices in Chicago, New York City and Houston. They even opened up a shop in Kansas City, just to serve Sunflower Ordinance Works, which with 12,000 employees, was key to America's great military successes.
Mr. Olmen, after working his way up to Vice President of Jamar-Olmen Co. in the late 1960s, moved on to fulfill his dream of business ownership. In April of 1972, he and his wife Patricia Olmen founded R.J Olmen Company, based on their core values of hard work, integrity, quality, and trust.
Of course, the new company needed a shop, tools and equipment to have any chance at success, so Ron and Pat laid it all on the line and took out a second mortgage on their $15,000 home.
Our Customers
For 54 years, we've been providing excellent HVAC services to customers throughout the Chicagoland area, including:
• Illinois Bell/Ameritech (now AT&T)
• Capital Development Board of Illinois
• Chicago Public Schools
• City of Chicago Police and Fire Departments
• Chicago Parks Department
• Cook, Lake, and DuPage County Hospitals
• United States Air Force
• Higher Education (Northeastern Illinois, UIC, University of Chicago, City Colleges of Chicago, Prairie State College, Governor’s State University, Columbia College Chicago)
• Museums and Entertainment Venues
• Public Building Commission of Chicago
• Private Entities
• O'hare Airport, Midway Airport
• U.S. Department of the Army
• U.S. Department of the Navy
• U.S. Department of Veterans Affairs
• U.S. General Services Administration
Other Projects Include:
