William Rundquist, Integrated Facility Services Founder: 1936-2018

By on March 2, 2018

William F. “Bill” Rundquist, founder of the company that is now Integrated Facility Services, died Friday, Feb. 23, 2018.

In 2016, Integrated Facility Services (IFS), a full-service mechanical engineering firm and the eighth largest specialty subcontractor in Missouri at the time, celebrated its 50th anniversary. IFS provides HVAC, plumbing, piping, building automation and energy conservation services to clients across the country from offices in St. Louis and Columbia, Missouri.

Established by Bill Rundquist in 1966 as Air Masters, the company now has five divisions – HVAC and Mechanical, Plumbing, Fire Protection, Building Automation and Controls, and National Design Build and Mechanical Construction.

In 2016, Air Masters consolidated its four affiliated companies and rebranded as Integrated Facility Services (IFS), a single-point resource for mechanical contracting and service. Today, IFS is led by Bill’s son, John Rundquist, who joined the company as a University of Missouri graduate and assumed the role of president in 2012. Bill Rundquist continued to serve as CEO and chairman.

At the time of the time of the rebranding the company had 250 employees and annual volume of $50 million.

A graduate of the University of Missouri at Columbia, Rundquist launched the company out of his home in 1966. On his second day in business Rundquist sold a residential air conditioning job and installed it himself. He recalled borrowing his young daughter’s wagon to haul the condensing unit from his new 1965 Dodge sedan to the installation pad. Within several months, Rundquist was adding employees to install and service HVAC equipment.

Over the past five decades, IFS has moved six times to accommodate constant growth and expansion. Bill Rundquist purchased the current 56,000-square-foot headquarters building at 1055 Cassens Industrial Ct. in Fenton in 2004. IFS expanded its pipe fabrication and welding shop into a nearby building on Cassens Industrial Ct. in Fenton. They also purchased a 10-acre site in Columbia, Missouri, for a branch office and warehouse facilities to serve the mid-Missouri market.

Rundquist is survived by his wife Rita; daughter Janet (Cheryl);  sons John (Molly) and Jim (Missy);  his grandchildren, Lauren, Leah, Emily and Jack;  his brother Bob (Marcy and nieces Ann, Sarah); and brother-in-law LeRay “Skip” Sullivan (Jane and niece Karen).

The family requests that any donations be made to Emmanuel Episcopal Church “150th Capital Campaign” fund or the charity of the donor’s choice.

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