Berch graduated from Calvin Coolidge High School.
[1] Berch is a retired public service attorney.
He worked in the private law sector and in the Windham County Public Defender Office from 1975 to 2009.
In 2022, Berch ran for re-election to represent the Cheshire 15 district.
He was defeated in the Democratic primary on September 13, 2022, losing to incumbent Amanda Toll and Renee Monteil, and thus losing an election bid for the first time in nearly a decade.