Serving plumbing & fire protection professionals since 2004.
For over two decades, Allied has provided contractors with steady inventory, disciplined execution, and service that respects their time. Our purpose is simple: keep your work moving.
Our Mission
Allied Plumbing & Fire Supply was founded in 2004 with a simple goal: serve plumbing and fire protection contractors better than anyone else. Built as a family business, the company grew by focusing on strong inventory, fair pricing, and service that respects the urgency of the jobsite. What started as a single operation built on relationships has evolved into a multi-location supply house trusted by contractors across Southern California.
Today, Allied is proudly led by the second generation of the founding family. While the company has expanded in size, technology, and reach, the core philosophy remains the same: take care of contractors and earn their business every day.
Second-generation leadership means continuity, long-term thinking, and a deeper commitment to the trade. We're not building for the next quarter - we're building for the next generation.
Real Moments
See what it's really like behind the scenes at Allied. From team events, customer days and everyday moments, these videos show the people and energy that make Allied a great place to work.
Our Story
Allied Plumbing & Fire Supply opened its first location in 2004 with a clear goal: deliver dependable plumbing and fire protection materials with fast, knowledgeable service. That first branch laid the foundation for the strong contractor relationships and service-driven approach that continue to define Allied today.
In 2007, Allied expanded with the opening of our 30,000+ square foot Sun Valley location. The expanded space allowed us to dramatically increase inventory, improve distribution, and operate at a much larger scale to better serve plumbing and fire protection contractors with the speed and reliability they depend on.
In 2010, Allied expanded into Los Angeles, establishing a presence in one of the most competitive and active construction markets in California. The new branch strengthened our ability to serve plumbing and fire protection contractors throughout the region with improved access to inventory, responsive counter service, and dependable delivery. Entering the Los Angeles market marked an important step in our growth, allowing us to build stronger relationships with contractors operating at every scale — from service work to large commercial projects.
In 2015, Allied expanded to the Southern California coast with the opening of our San Diego branch. The new location strengthened our ability to serve contractors across the region, providing greater access to inventory, faster turnaround times, and localized support in one of the state's most active construction markets. The expansion reflected our commitment to meeting contractors where they work and continuing to grow alongside the trade.
As demand in the region continued to grow, Allied relocated at the end of 2020 to a larger, modernized facility. The upgraded space was designed to increase inventory capacity, improve operational efficiency, and enhance service capabilities — ensuring we could better support the evolving needs of San Diego's plumbing and fire protection professionals.
Allied entered the Inland Empire in 2021 with the launch of our Riverside branch. Positioned to better serve a rapidly growing construction market, this location brought our inventory, delivery network, and contractor-focused service closer to the job sites driving the region's expansion.
As demand in the Los Angeles market continued to grow, Allied relocated in 2025 to a newly built, upgraded facility just up the street. The expanded space was designed to support increased inventory capacity, improved logistics, and greater operational efficiency — reinforcing our commitment to delivering reliable supply and service to contractors across the region.
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