He worked as an educator before entering political life, and served on the board of governors of Wilfrid Laurier University for four years.
Reimer was returned to the Commons in the 1984 election, defeating Lang by over 10,000 votes as the Progressive Conservatives won a landslide majority government under Brian Mulroney.
He was re-elected by a narrower margin in 1988, and served for nine years as a backbench supporter of the Mulroney and Kim Campbell governments.
He sought a return to Parliament in the newly constituted riding of Kitchener Centre during the 1997 election, but finished a distant second against new Liberal candidate Karen Redman.
Reimer is a social conservative, and in 2000 called for a law making abortion illegal in Canada.