WHCI Plumbing Supply Company serves contractors throughout the San Francisco Bay Area, supplying the products and expertise n ... ecessary to finish the job on time and on budget. With huge warehouses in Union City and Dublin and an exceptional customer service team, WHCI expertly manages inventory so clients can focus on the project at hand. Its 68,000 square foot Union City warehouse and smaller facilities in Dublin and Burlingame house a massive inventory of every conceivable plumbing product, with most items always in stock. WHCI strives to meet even same-day delivery requirements with its own fleet of company-owned trucks. read more