Charles R. Andreen, age 78, of Pittsburgh, passed away on Tuesday, November 30, 2021. Beloved husband of the late Frances. Loving father of Michael, Mark, and Russell. Grandfather of April, Joey, and Katie. Great grandfather of Colton, Olivia, and Wyatt. Family and friends welcome Monday 11-1pm, Wm. Slater & Sons, Inc., Mt. Washington (412-381-3345), 301 Virginia Ave. Mt. Washington, PA, 15211, where a blessing service will be held Monday at 1pm.