Since 1904, W.L. Hickey Sons has installed over $1 billion worth of plumbing systems (adjusted for inflation) in the Northern California region. Concentrating primarily in the greater San Francisco Bay Area, the company has been a pioneer in construction trends that subsequently have been adopted across the industry on both a national and international level. Some milestone example of this commitment are plumbing one of the first shopping malls in the US (Hillsdale Mall circa 1950), designing and building a groundbreaking urban village project (Santa Row circa 2001) and advancing that design-build capacity to a transit oriented high-density mix used development (Millbrae Park Station 2022).


W.L. Hickey Sons is an industry leader in the San Francisco Bay Area construction industry and has been since its inception. Owned by the Hickey Family and managed by its fourth generation the foundation is secure. It’s common for employees to have family member that also work(ed) for the company. This deep-rooted legacy of core values enable WLHS to remain an institution in the plumbing industry.

Photo of Adam Hickey


For a business to operate for over a century a fascinating curated history develops. Our history spans the course of two world wars, a great depression, two global pandemics, the great recession, and a mirage of other events. Explore our history through vintage photographs from our early years when our phone number was 74, one of the first 100 phone numbers in the San Francisco Bay Area.