A 115 year family legacy

F.W. Spencer & Son, Inc. (FWS) is a mechanical contracting company that has been proudly serving the San Francisco Bay Area since 1903.

In the same family for four generations, we are known for both our longstanding reputation as the leading Bay Area plumbing and mechanical company and the many and varied projects we’ve been involved in over the last 115 years.

We are completely dedicated to the safety and well-being of our employees. Our core value is “Excellence and Performance with Passion” and we love tackling challenging and intricate projects, completing them on time, on budget, and to the very highest quality standards.