Northgate Garage Doors, Inc.™ is a 3rd generation family-run business owned and operated by Kim and Greg Berlin. We have been located in Marin since 1975 and the Berlin family has been in the overhead door business for over 55 years. I am proud and thankful to have been able to learn from my father and grandfather, these are things you can't learn from a manual. In 1992 I took over the residential overhead door division and my father is still doing industrial doors today. We service and install residential garage doors in Marin County, CA and in some parts of San Francisco.