James T. Maffia, Sr., 95, formerly of Mount Prospect, Illinois, and Fontana, Wisconsin, passed away peacefully on Sunday, August 23, 2026, surrounded by his loving family.
Born to the late James and the late Lena, nee Casale, James was raised in Chicago, Illinois. He was an alumnus of Steinmetz High School and Wright Junior College. Drafted into the United States Army James proudly served during the Korean War.
In 1960, he and his lifelong friend, the late Nathan P. DeMichele, entered the building business and incorporated DeJames Builders. They began remodeling then building homes and later constructed an apartment building. In the 1970s, they expanded their business by building and self-managing industrial buildings throughout the O’Hare corridor. Together, they built a successful business that they operated for more than 50 years. Today, James’s children continue his legacy.
An avid golfer, seasoned foodie, and car enthusiast, James never missed a good card game with the guys. He enjoyed boating on Geneva Lake, fishing with his grandchildren, and spending time outdoors. He cherished his winters in Palm Springs, California, and later in Naples, Florida. James was a kind and generous man who supported many charities throughout his lifetime.
James was the beloved husband of the late Mary Ann, nee Sasgen; loving father of Suzanne Maffia, Jim Maffia (Kim Bliss), and John Maffia (Sheri); proud grandfather of McKenzie Ohler (Ethan), the late Kendall Maffia, Halle Maffia, and JT Maffia; dear brother of the late Camille McDowell (the late James); and fond uncle and great-uncle of many nieces and nephews.
Cremation was private at Countryside Crematory.
Memorial visitation will be held on Saturday, September 12, 2026, from 9:30 a.m. until the time of Mass at 10:30 a.m. at St. Anne Church, 120 Ela Street, Barrington, Illinois. Military honors will immediately follow Mass. Inurnment will take place at a later date at Abraham Lincoln National Cemetery in Elwood, Illinois. The family requests your wear your favorite color and prefer no black.
In lieu of flowers, memorials to Kendall’s Kindness at www.kendallskindness.com are appreciated.
For information, call (630) 289-7575.