Top 10 Commercial Plumber in Los Angeles, CA
The best commercial plumbing companies in Los Angeles, CA for 2026 include John's Plumbing & Drain Services (4.9), A-1 Total Service Plumbing (4.9), Red Lilly Plumbing (4.8). All handle commercial buildouts, maintenance contracts, grease traps, backflow testing, and emergency service.
Pacific Plumbing Team
A-1 Total Service Plumbing
John's Plumbing & Drain Services
DX Plumbing and Hydro Jetting Inc🔧
Major League Plumbing
Red Lilly Plumbing
Monkey Wrench Plumbing, Heating, Air & Electric
Fraser's Plumbing co
Coast to Coast Plumbing
JW Plumbing, Heating and Air
How We Ranked These Los Angeles Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Los Angeles market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How is commercial plumbing different from residential?
Commercial plumbing involves larger pipe sizes, more complex systems, code requirements specific to business types, grease traps, backflow preventers, and often requires specialized licensing.
How much does commercial plumbing cost in Los Angeles?
Commercial plumbing rates in Los Angeles are $100-$200/hour, higher than residential due to complexity. Service contracts for maintenance run $200-$500/month depending on the building size and fixtures.
Do restaurants need special plumbing?
Yes. Restaurants require grease traps (cleaned monthly), separate waste lines, commercial dishwasher connections, floor drains, and regular backflow testing. Health department inspections verify compliance.