Our motto is simple;

Always do the right thing for our customers!

Since 1962, A-1 Plumbing Supply has been a leading plumbing wholesale supplier for the San Francisco Bay Area. We carry the largest stock of hard to find items in the Bay Area. Our unique combination of pipe valves, fittings, 400 different stems for faucets, and pipe cutting and threading services makes us a one stop shop for all of your plumbing needs.

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