Keith was preceded in death by his mother, Barbara Diehl.
A Master HVAC Technician, Keith owned and operated Diehl's Heating & Air. Through years of hard work and steady dedication, he built a life defined by reliability and service—qualities that extended well beyond his trade. Kind-hearted and selfless by nature, he carried a huge heart and consistently went above and beyond for loved ones and strangers alike.
Keith found genuine joy in playing pool with his Pool family, a circle of lifelong friends who meant a great deal to him. He also took pride in developing his place at the lake with his toys, and he valued the simple comfort of spending time with his dogs.
Keith is survived by his son, Bradley Diehl; Jennifer Diehl (née Penick); his father, Carl E. Diehl, with whom he shared a deep bond; his brother, Kevin Diehl; his sister, Kimberley Turner; his sister, Karla Diehl; Earl Age, Jr.; his fur babies, Rip and Beth; and many nieces, nephews, and cousins. He is also survived by his best friends, John & Brenda Semar, Gary Cook, David Nunn, and Kenneth & Valerie Delcour.
Funeral service will be 4:00pm, Saturday, October 17, 2026 at Arch L. Heady at Resthaven, 4400 Bardstown Road Louisville, KY 40218.
Visitation will be 12-4pm, Saturday, October 17, 2026 at Arch L. Heady at Resthaven.
