GM Plumbing
Company Overview
At GM Plumbing, we focus on drainage, sewer services, wastewater solutions, and clog removal. We are approved installers for Malibu, MRP IT-15002. For over two decades, we have proudly served the Sun Valley. Our expertise spans business, domestic, mobile homes, and restaurants. We collaborate with landlords, insurance companies, leased spaces, and home warranties. Our services include winterization, hot water systems, water pressure issues, sewage system fixes, lot drainage solutions, sewer cleaning, compliance fixes, fixture installations, complete plumbing solutions, visual inspections, food waste systems, tap installations, shower leaks, bathtub swaps, piping upgrades, sump pumps, leak identification, slab leaks, mold removal, backflow devices, high-pressure cleaning, waste line maintenance, gas line installations, tankless water heaters, water supply installations, and earthquake shut-off valves. Learn about our warranty options.
Domestic In-home Septic Solutions
Malibu, California, the Golden State
Malibu Septic Inspectors
We offer complete onsite wastewater treatment for residential and industrial property owners in Malibu and surrounding areas. From certified by the City of Malibu septic inspections to soil absorption tests, to advanced septic system design and installation, we excel in all aspects of sewage management. Our friendly staff understands City of Malibu septic system design and requirements, enabling us to expedite your project. Our expert wastewater treatment consultants can assist you in avoiding costly redesigns due to hidden requirements.
Consider pumping your system if:
Drains and toilets are backing up with sewage
Toilets flush slowly
Wastewater appears on the ground
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.