Advance Mechanical Contractors
Company Overview
Established in 1923, our team at Advance Mechanical Contractors has prioritized providing expert plumbing services for a variety of clients, including commercial, residential, and industrial sectors. We manage new construction initiatives and have become the trusted name for plumbing solutions in refineries, private homes, plant expansions, breweries, local attractions, and beyond. We partner with oil and refinery businesses to ensure top-notch plumbing services in everything we undertake.
Over the years, our company has received multiple accolades, including the title of ""Readers' Choice Best of Southern California"" from the Los Angeles Times. As a union contractor, we are expanding our service areas to include schools, hospitals, and even correctional facilities. Each customer who relies on us is treated with the utmost respect, integrity, and honesty. Our experienced team, along with our courteous and skilled contractors, is here to help you.
Business Services
- Bathtub installation
- Bathtub repair
- Drain installation
- Drain repair
- Faucet installation
- Faucet repair
- Garbage disposal installation
- Garbage disposal repair
- Gas line installation
- Gas line repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Toilet installation
- Toilet repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 7:30 AM - 4:30 PM |
Tue: | 7:30 AM - 4:30 PM |
Wed: | 7:30 AM - 4:30 PM |
Thu: | 7:30 AM - 4:30 PM |
Fri: | 7:30 AM - 4:30 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

I can't speak to the quality of their work, but I asked them to replace a faucet in our bathroom. It's a max 2-hour job. They asked for $500. We then found a company that did the work for $150 (they charge $100 per hour).

Jonathan did a great job with my 2 toilet replacements. I solicited several quotes and Advanced Mechanical Contractors responded quickly, provided a competitive quote, and had availability. My Long Beach condo building also uses Advanced Mechanical Contractors (AMC) as their go-to plumber.
I think all of the work was completed in less than 3.5 hours? We had some challenging space constraints to troubleshoot. Jonathan also got a helper to come and take the old toilets (and even the packaging and trash that the toilets were shipped in) - lots of trips from my 4th floor condo to their van outside. I would definitely recommend Jonathan and AMC for future work.

I was very pleased with Advance Mechanical. I called them with a clogged toilet due to my special needs daughter flushing something down it. Jonathan came that day and he got it all cleared up for me. He was very professional and helpful during the process. We will definitely use them again. Thanks Jonathan!

Super happy with Advance Mechanical! They came quickly during a plumbing emergency and worked hard to identify the issue. There are 3 stores- so we were not sure where it was coming from. Jonathan was awesome- explained everything, cleaned up everything perfectly, even cleaned the bathroom floor. I would call them again for sure!! Thank you Jonathan and Advance Mechanical!

We had our kitchen sink in an island backing up. We called Advanced Mechanical and they were very responsive. Technician, Johnathan came out and identified the problem very quickly. He ended up having to replace a portion of the plumbing under the cabinet and a fitting under the house. He was able to get the problem fixed and even stopped in to follow up a few days later personally to make sure his repair was working perfectly. The service over the phone was great. But the attention and service by their technicians in the field is nothing short of amazing! We highly recommend this company their services.

I was referred to ""Advanced mechanical contractors"" by my local plumbers. Jonathan who was super helpful was able to make time and put in a temporary repair while my company decided what step to take next. The effort that has been put in is extremally helpful.

Very poor quality of workmanship, over exceeded price estimates, plumber was rude. Completely not satisfied. They look professional yet they fell short in my book.

Our pipeline from our toilet cracked and needed replacing. So we were told that we couldn't use our toilet on Monday. The people they sent Tuesday, and Wednesday had no luck. But Thursday came and Oscar got the job done before I got off work. I was told on Wednesday that they couldn't get underneath the condo to make the replacement and that they had to come into my unit and rip my floors open, ugh! Such a horrible thought. Thank God for Oscar coming to the rescue and making things work out (without needing to rip my hardwood floor open) Thank you, Oscar!!!!!! If anyone wants things done right and on-time request Oscar.

Had an out of the blue incident where my water would not shut off & the spigot had failed. Called a couple other plumbing businesses and they were booked (of course it happened on a holiday weekend). Advance Mechanical Contractors said they were booked but would squeeze me in if possible. W/in a 1/2 hr, i received a call that someone could come out. It was Bob. He was friendly and happy to figure out my problem and answer any questions i had. We figured out my problem. He fixed it, and he even showed me some tricks should it happen again. I am very appreciative for the quick response and expertise. Thanks all involved!

A lousy experience. I called them and spoke with Jeff, who was courteous, professional and knowledgeable. But after Cyndy called back, who works for the corporate office, she failed to return my call with a recommendation for my plumbing problem. I left 3 messages, no call back. Maybe they don't return calls if the project doesn't pay enough, or if they can't suggest a solution. Not professional and a waste of time.