BUILDERS LLC 406-433-2431 . Commercial o Residential . Remodeling . Gutters Owner Mitch Shirk 815 1/2 3rd St. NE, Sidney msbuilders@midrivers.com. BUILDERS LLC 406-433-2431 . Commercial o Residential . Remodeling . Gutters Owner Mitch Shirk 815 1/2 3rd St. NE, Sidney msbuilders@midrivers.com.