GM Plumbing
Company Overview
At GM Plumbing, we focus on plumbing, sewer services, sewage solutions, and drain cleaning. We are certified installers for Malibu, MRP IT-15002. For over two decades, we have proudly served the Antelope Valley. Our expertise spans industrial, domestic, manufactured homes, and food establishments. We collaborate with real estate firms, insurers, tenancy units, and home warranties. Our services include seasonal preparation, water heaters, flow concerns, tank servicing, surface drainage, waste line cleaning, code violation corrections, plumbing fixture replacements, full-service plumbing, video camera inspections, garbage disposals, faucets, leaky showers, bathtub swaps, piping upgrades, sump pumps, leak identification, slab leaks, fungus elimination, backflow preventers, high-pressure cleaning, sewage clearing, gas pipes, tankless water heaters, water supply installations, and earthquake shut-off valves. Learn about our warranty options.
Domestic Onsite Septic Solutions
Malibu, CA, the Golden State
Malibu Wastewater Inspectors
We offer turnkey onsite wastewater treatment for domestic and business property owners in Malibu and greater Los Angeles. From certified by the City of Malibu septic inspections to soil percolation testing, to innovative septic solutions and installation, we excel in all aspects of sewage management. Our helpful staff understands Calabasas septic system design and permitting, enabling us to expedite your project. Our knowledgeable wastewater treatment consultants can assist you in avoiding expensive redesigns due to hidden requirements.
You might need to pump your system if:
You experience sewage backups in your plumbing
Your toilets are slow to flush
Wastewater surfaces
Unpleasant odors linger around your home
Lush vegetation thrives over the absorption field
It's been a while since your system was serviced.
Business Services
- Drain repair
- Gas line installation
- Gas line repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
Business Location & Hours
Mon: | Open 24 hours |
Tue: | Open 24 hours |
Wed: | Open 24 hours |
Thu: | Open 24 hours |
Fri: | Open 24 hours |
Sat: | Open 24 hours |
Sun: | Open 24 hours |
Recommended Customer Reviews

I am in the process of buying a house with a septic tank, which I have never used before. I hired GMP plumbing and sewer to inspect the system before purchase. Mr.Morris came on time, took a few pictures, explained to me the system was not draining and he could not do anything more. He informed me of different options ranging from $10,000-$80,000. The seller's did their own inspection three days later and processed their report a day later stating there was no issue. I didn't receive a report from GMP for 6 days, and it took numerous emails and calls from the realtor and myself to get it: 3 pictures and a page with check marks and little information- which stated at the bottom ""not for real estate use"". To say I wasted $575 is an understatement, and I do not have any documentation to refute the seller's report. DO NOT USE.

Would not recommend this company. The owner is not knowledgeable about the process in Malibu and led to a lot of delays for our septic system.