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Business ProfilePlumbers in Azusa, California

Andersen Commercial Plumbing, LLC

Andersen Commercial Plumbing, LLC

Andersen Commercial Plumbing is a commercial plumbing contractor founded in 1994. Based in Covina, it serves Southern California commercial properties, including offices, high-rises and industrial facilities.

Last Updated October 2, 2026.

Business Highlights
  • Its service department says it has more than 30 experienced technicians.
  • It describes its backflow specialists as state-certified.

Service Area

Los Angeles County: Long Beach, Pasadena, Glendale, Torrance, Santa Clarita, Burbank, Pomona, West Covina, Downey, Inglewood, Santa Monica, Carson, Whittier and El Monte; Orange County: Anaheim, Santa Ana, Irvine, Fullerton, Huntington Beach, Garden Grove, Orange, Mission Viejo, Newport Beach, Laguna Beach, Laguna Niguel, Costa Mesa, Lake Forest, Buena Park and Tustin.

Active Business Listing

Andersen Commercial Plumbing, LLC is one of 12 plumbers ProsGrade lists in Azusa, California.

Active
Public local listing
Listing details

12 services listed, including Tenant improvements, New construction – design-build and Service and repair. Open 24 hours, 7 days a week. Rated 4.9 from 135 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How Andersen Commercial Plumbing, LLC compares with the other 11 plumbers on ProsGrade in Azusa, using public Google ratings and review counts.

  • Rated 4.9 on Google, at or above the 4.9 average of other Azusa plumbers on ProsGrade.
  • Has more Google reviews (135) than 6 of the 11 other Azusa plumbers on ProsGrade.
  • One of 12 Azusa plumbers on ProsGrade rated 4.7 or higher from at least 10 reviews.

Trust Signals

Open 24/7 for commercial and multifamily plumbing needs.

Services Covered

12 services
  • Tenant improvementsADA upgrades, core restroom remodelling and med-gas piping
  • New construction – design-buildTurnkey budgeting, design, value engineering and plan checks
  • Service and repairCommercial plumbing system repairs
  • Backflow testing and preventionTesting, repair and replacement
  • Drain cleaning and jettingLines up to 10 inches
  • Video camera inspection
  • Sump pump and sewage ejector repair and replacement
  • Sewer re-lining and leak detection
  • Fixture repair and replacement
  • Electric and gas water heater repair and replacement
  • Boiler repair and replacement
  • Preventive maintenance

Reviews

What customers say

Customers praise technicians' professionalism and troubleshooting. One customer valued a technician who purchased the needed items, installed them and explained maintenance; another reported coming home to an open glass patio door and sludge on surfaces after work.

Customer Reviews

J to the D

Unprofessional, Negligent, and a Major Security Risk If I could give zero stars, I would. This company was contracted to do work in my unit while I was away on vacation, and I returned home at 11:30 PM to an absolute nightmare. First and most importantly: They left my 14th-floor glass patio door wide open. Leaving a high-rise apartment unsecured and exposed to the elements while a resident is out of town is gross negligence. To make matters worse, the unit was covered in "pipe muck." There was sludge under my sinks, on the counters, and even sprayed across my dishwasher. I also had to pass a carpet cleaner over a rust stain 25 times just to save my flooring. I spent the first three hours of my return scrubbing filth instead of unpacking. Zero respect for property or safety.
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Annie P.

Hector from Andersen Plumbing did a fantastic job and was very polite and professional. Highly recommend! Will request him in the future, for sure. Thank you! ??

Nick Stonnington

Josh was amazing. He figured out the issues, came up with a proposal, purchased everything so we didn’t have to, installed it brilliantly, and even taught us how to maintain it as well as identified other issues that needed to be addressed. Honestly, one of the best experiences we’ve had.
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Ambar Reyes

We’ve had a fantastic experience with Eli Tech. Anderson commercial plumbing service is excellent—attentive, informative, and always professional. Communication is top notch, and the team is great at keeping us updated throughout the process. Ownership is proactive and consistently follows up to ensure everything is running smoothly. Eli Tech did a great job troubleshooting and servicing our boilers. Highly recommend!
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Everardo Zavala

Hector came quick to help our high rise and our water heater issues. Quick to troubleshoot and diagnose the problem. Flexible with our requests and adaptable to our needs. He quickly got Gerry out to assist in swapping out a water heater on the 9th floor, got our residents back up and happy. Thank you Hector and Gerry. Attn Ever @ Versosa.
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Frequently Asked Questions

Does Andersen Commercial Plumbing provide emergency service?

It provides emergency service 24 hours a day, 365 days a year.

Can Andersen Commercial Plumbing manage jurisdictional approvals for a tenant-improvement project?

Its tenant-improvement services include management of jurisdictional approvals and plan-check services.

What sizes of backflow devices does Andersen Commercial Plumbing handle?

Its backflow service handles devices from 1/4-inch to 16-inch.