SoCal’s Trusted Commercial Plumber
GL Plumbing Service is your trusted partner for commercial plumbing service and repair, mechanical contracting, and infrastructure plumbing projects throughout Southern California. With decades of experience and full licensing (C-36 Plumbing, B General Contractor, and A Engineering Contractor), we’re equipped to handle everything from new plumbing installations to emergency repipes and long-term property improvements. We’ve completed thousands of projects for commercial properties, high-rises, city buildings, hospitals, hotels, restaurants, and manufacturing plants across Los Angeles, Commerce, Beverly Hills, Glendale, Yorba Linda, Brea, Placentia, and surrounding cities.
Our highly trained journeymen have completed 5-year apprenticeships and receive 20+ hours of continuing education annually. With bilingual (English/Spanish) crews and fully stocked service trucks, we’re ready to respond quickly, communicate clearly, and deliver lasting results. Whether you’re managing a facility or planning a multi-trade build, GL Plumbing Service provides the reliability, professionalism, and experience you need to get the job done right.

Full-Service Commercial Plumbing
Drain & Sewer Repair, Repiping, Gas Lines & More
At GL Plumbing Service, we offer a comprehensive range of commercial plumbing services tailored to meet the needs of property managers, contractors, and facility directors across Greater Los Angeles, San Gabriel Valley, and Orange County. Because we hold an A License, we’re qualified to tie directly into municipal utilities and oversee complex projects involving storm drains, sewer mains, gas systems, and domestic water lines. We frequently provide trenchless sewer repair to reduce disruptions to ongoing operations. No matter the scope, our team focuses on quality workmanship, minimal downtime to your business, and code compliance every step of the way.







