Andy Castillo Plumbing
Company Overview
We specialize in full-service plumbing and repair work.
Andy has dedicated over 30 years to plumbing in the San Gabriel Valley.
With 30+ years of plumbing knowledge, we proudly serve the San Gabriel Valley and surrounding areas.
Andy is honest, diligent, and takes great pride in his craftsmanship.
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
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Hydro-jetting
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Shower repair
- Sink installation
- Sink repair
- Sump pump installation
- Sump pump repair
- Toilet installation
- Toilet repair
- Water heater installation
- Water heater repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 5:30 PM |
Tue: | 8:00 AM - 5:30 PM |
Wed: | 8:00 AM - 5:30 PM |
Thu: | 8:00 AM - 5:30 PM |
Fri: | 8:00 AM - 5:30 PM |
Sat: | 8:00 AM - 12:00 PM |
Sun: | Closed |
Recommended Customer Reviews

Gus was very friendly and knowledgeable. They assessed my problem quickly and resolved it without any issues. I'd gladly go to them for any future plumbing needs.

We contacted Andy Castillo Plumbing to fix a water line to our refrigerator in Downey. Andy sent Gus to check out the job.
Gus was extremely friendly and very professional. He got the new waterline connection to the fridge up and running in no time. I appreciate that Gus took the time to check everything after the job was completed to ensure everything ran smoothly with no leaks. If you have any plumbing needs, you can't go wrong with this team. I highly recommend them. Thanks again, Gus!

This review for Andy Castillo Plumbing is better late then never. I reached out to Andy directly and he was very prompt with responding back. We've been having issues with our plumbing in washer/dryer room. The next day, Gus arrived and did the thorough inspection. Since we had some old 1940's plumbing and using a modern (2000's) washing machine, that was the reason behind water spilling from the pipe itself and getting this foul/sewer smell. The amount of water coming out from the modern washing machines we use today, was a lot for the small diameter pipe our house came with. They cut out a section of the wall, replaced the old pipe for a bigger (2"") diameter, and patched the wall up. They did a fantastic job overall. Even with these weird covid times, they were masking up. They made sure to protect the floors and also cleaned up after themselves. Very professionals! I can honestly say, I will be calling them in the future. Thanks again Andy and Gus!

While I was painting behind my stove I bent down next to the gas line and actually felt air blowing from a hole in the line onto my cheek--but the air was natural gas. I knew I had smelled some gas, but I kept assuming it was the pilot light. Nope, it was a huge leak in the gas line. No wonder I felt light-headed.a
I called So Cal Gas to come check it out and their tech replaced the line, but when he tested the pressure on the gas line in the whole house there was still a significant leak. Yikes. The gas company shut off the gas to the entire house, so no cooking, no hot water for showers or laundry.
I called another different plumbing company who charged $99 to do an initial visit--wherein they wanted me to sign paperwork for a $600 test of the gas line--but on the first visit they didn't do any work, so I would need to schedule another appointment for a few days later for the gas line test. More cold showers for me. I was informed that if they would cap all of the appliances, then if the line was still leaking, all the horizontal lines would need to be replaced which would be about $9,000, then if that didn't work, all the vertical lines would be replaced for about another $2,000. So upwards of $11k.
I asked around and everyone told me they thought that was too high, so I started looking and I found good reviews on Andy Castillo Plumbing. Their technician, Gus, came out the next day, and immediately went to work. Their gas line test was about $300--so HALF what the other company was charging, and there was no $99 initial visit fee. Gus replaced all five of the interior gas lines and old valves to see if that would hold pressure (and to bring the lines up to code, which they definitely were not). IT WORKED!! Instead of spending $11,000, the entire job cost about $900. Gus checked the line for pressure multiple times to make sure it was holding, then he did it again in front of me, so I could see that it had been repaired. When the gas company inspectors came, they said the line was solid, and they restored my gas!! The entire time Gus was there, he explained everything he was doing and why he was doing it, in clear terms. When I asked him how much it might be if he needed to replace all the gas lines (if the pressure didn't hold), he told me it would be around $3,000--which is almost A QUARTER of what the other company would have charged for the same service.
My old plumber retired and I've been looking for someone reliable, honest and skilled to do periodic work on my 110 year old house--and now I found him. Gus is amazing, this company has honest, kind, clear, skilled plumbers, and they are now my new plumbers! (and there have been about four other companies I tried before them for other plumbing jobs, so I don't say that lightly.)

Had a new dishwasher installed, and the installers didn't want to hook up the water line because the valve was stuck (I confirmed this) and they didn't want to risk breaking it. I called Andy and explained my situation. He sent out Gus to check it out, and he was great. He listened to me, discussed the option of replacing the valve but did not try to sell me on it. After turning off the water supply to the house, he carefully and successfully was able to open the valve! I offered to pay but he declined. These guys are the real deal. I've run across other plumbers who are arrogant, talk down to you and/or try to up sell to you. Not these guys. They are my go to plumbers from now on!

Andy Castillo Plumbing was great. Gus and Andy answered all of my questions, and Gus did a great job repairing the kitchen sink plumbing, broken kitchen cleanout, and the plumbing lines connected to the main line below the house in the crawl space. stucco guys nicely patched the exterior wall, too. significant job, and they were all done in a day.

These guys were the greatest! Andy was very friendly over the phone, and helped determine the services needed. Gus and the crew who performed the work were even better. Honest and deliberate, I would 100% recommend Andy Castillo plumbing to my friends and family.

Andy's guys rescued me from my DIY faucet debacle. The old faucet had frozen into place. The old was was dislodged and new one installed perfectly, with no fuss, and works better than the old one ever did. This is the second time I've used Andy. He's now my go to plumber.

5 minutes. That's how long it took Andy to diagnose and repair a shower that was not producing hot water.
I had brought in another plumber the day before who changed out the cartridge twice with no result. I was also quoted a significant fee to break through a wall and 'fix' what didn't really need fixing.
Andy, thank you for your professionalism and attention to detail. I highly recommend Andy Castillo Plumbing.

We contacted Andy for an issue with our toilet. He sent out Gus to check our problem. Gus arrived very timely. He was super polite and professional. He was able to see our problem right away and explained what our options would be. He did not try to pressure sell us and I appreciate that. I would highly recommend Andy Castillo Plumbing for any plumbing needs. Ask for Gus and you will not go wrong with selecting this company.