Donald L. Heck, 57, of Waterloo, died April 10, 2013, in Waterloo.

He was born Feb. 18, 1956, in Waterloo, son of Margaret Heck and the late Leo H. Heck.

Mr. Heck was owner of Don Heck Heating & Cooling. He was a member of Ss. Peter & Paul Church, Waterloo.

Survivors include his mother; children Jennifer Heck, Jacob Heck and Christopher Heck; sister Jeanette Gazda; and brother Thomas Heck; along with aunts, uncles, nieces, nephews and cousins.

Visitation was April 14-15, at Quernheim Funeral Home, Waterloo.

A funeral Mass was celebrated April 15, at Ss. Peter and Paul Church, Father Ronald Weber officiating.

Interment followed at SS. Peter and Paul Cemetery, Waterloo.