In 1913 Charles Sidney Blackman immigrated to America from Australia settling first in Los Angeles, Ca. and moving to the Imperial Valley in 1917. Charles, an accomplished plumber, set out to live the American Dream, opening his own shop in Holtville, California in 1917. The reputation of Blackman Plumbing grew quickly. In just a few short years, Charles’s commitment to quality workmanship, professional service and fair pricing resulted in a rapidly expanding business. For the next couple of years, the company grew through World War I and embraced the roaring 20’s. Then the Depression hit.
By 1940 the company had outgrown its original locations in Holtville and Calexico California and moved to more spacious headquarters on Main Street in El Centro, California where it remained until 1965 when the company relocated once again to 1160 South Second Street in El Centro, California.
In 1961, Lester’s son and 3rd generation, Thomas Sidney Blackman lead the business into the 80’s, 90’s. In 1992 the leadership changed and what was Blackman Plumbing became Original Sid Blackman Plumbing, Inc. In 2022, the company changed ownership to Sid's long time project manager Michael Wickline and relocated the operation to 542 Industry Way in Imperial, California. Michael stays true to the company’s ongoing goal “Be the best plumbing contractor to work with, and the best plumbing contractor to work for”.