Trusted Commercial Plumbing Services in San Gabriel Valley

GL Plumbing Service proudly serves the San Gabriel Valley, delivering expert commercial plumbing solutions for businesses, public facilities, and property owners across the region. As a family-owned and union-trained contractor with decades of experience, we bring professionalism, precision, and state-licensed expertise to every project. Our team is fully licensed (C-36, A, and B licenses) and staffed entirely by journeyman plumbers who have completed extensive 5-year apprenticeships. We provide 24/7 emergency services and handle projects ranging from high-rise plumbing systems to government infrastructure. Whether your property is in Pasadena, El Monte, Alhambra, or Covina, our skilled plumbers have the training and equipment to deliver exceptional results across the Greater San Gabriel Valley.

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Sump Pump Installation & Emergency Service for El Monte, Azusa, and Beyond

Sump pumps and sewage ejector systems are critical for protecting commercial properties from flooding and water intrusion. GL Plumbing Service provides expert installation, repair, and maintenance for sump pumps, sewage pumps, and lift stations. We also offer 24/7 emergency repair to minimize downtime and protect your property. Property managers and business owners in Glendora, Upland, and Hacienda Heights trust our experienced technicians to keep their systems operating efficiently year-round.

Boiler & Commercial Water Heater Services in San Gabriel Valley

GL Plumbing Service specializes in boiler and high-capacity water heater installation, maintenance, and repair for commercial properties. We service systems over 100 gallons (classified as boilers) and provide low NOx burner retrofits to meet South Coast AQMD requirements. From hotels and colleges in Pasadena to hospitals and manufacturing plants in Covina, our licensed boiler technicians deliver dependable service and long-lasting solutions.

Restaurant Plumbing Services in Arcadia, Monterey Park, and Glendale

Restaurants and food service facilities have unique plumbing demands, and GL Plumbing Service has the experience to handle them all. We install and maintain grease traps, floor sinks, and commercial-grade drain systems, as well as provide hydro jetting services to prevent clogs and downtime. From family-owned eateries in Sierra Madre to large commercial kitchens in Upland, we help restaurant owners across the San Gabriel Valley maintain smooth, code-compliant operations.