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Allstar Plumbing

San Jose Plumbers
Ranked #12 in San Jose | Grade C+
4.80 (318 reviews)

Allstar Plumbing

Allstar Plumbing provides around-the-clock plumbing service from its San Jose location, addressing leaks, fixtures, drains, and water heaters with clear communication and agreed pricing.

Why Homeowners Choose This Business

- Open 24/7 for scheduling convenience
- Upfront pricing discussed before work begins
- Technicians noted for respectful communication and careful, thorough work
- Local San Jose team familiar with common plumbing issues in older and newer homes

Service Area

Serving San Jose and nearby Santa Clara County communities.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Shows strong customer satisfaction signals based on review quality and volume.

Trust Signals

Emergency Service - 24/7 availability for scheduling and service calls.

Services Covered

  Plumbing Services
  Drain Cleaning
  Water Heater Services
  Leak Repair
  Water Heater Installation
  Water Heater Repair
  Toilet Repair
  Faucet Replacement
  Installations
  Garbage Disposal Repair
  Repairs
  Pipe Repair
  Valve Replacement
  Shower Cartridge Replacement
  Low Water Pressure Troubleshooting
  Gas Line Inspection

Leak repair and detection, toilet and faucet repairs, water heater repair and replacement, drain clearing, garbage disposal service, valve and supply line replacement, basic gas and water line work, and general plumbing installation and troubleshooting.


Recent Reviews

4.80

(Based on 318 reviews)

Recent reviews consistently mention quick response times, especially for evening calls, and technicians who explain options and pricing clearly. Many customers highlight careful workmanship, cleanliness, and patience in diagnosing root causes beyond the immediate symptom. Water heater installs and general leak or valve repairs are common positive themes. There is at least one report of a recurring mixing-valve issue that required a return visit, suggesting outcomes can vary depending on the problem.

Google Review
Gabriel Otte on Allstar Plumbing

We first contacted Allstar to fix a water mixing issue. They came and charged us to diagnose the problem and said that it was a cartridge in one of the showers that had failed that was causing the cold and the hot water to cross over. They then charged us more to fix the problem. So far, so good. They installed the new cartridge and told us that it was fixed.

A few weeks later, we were still having the issue and so we had them come back. Another guy, Jose comes out and says our issue was that actually our recirculator was sending hot water into the cold and that they needed to install a stop valve so that the flow was unidirectional. I once again, double checked whether this was going to fix the problem and they assured me this was the problem. So they charged me another few thousand dollars to redo the piping.

After that, they said that that didn't fix the problem and that it was the cartridge after all and they had misdiagnosed which one of the showers had failed in the first place. So they came back and said it was this other shower that was the problem. So they took out the old cartridge but couldn't install the new one due to some build up. Now, this failed install is causing the shower head to leak constantly. Except, the owner, Sergio now doesn't want to do more work unless we pay more money on a problem they misdiagnosed and a leak they caused in the first place.

Now I have a leak that they are refusing to fix without more money and they still haven't fixed the initial mixing issue. Evidently Sergio has been complaining about how he has already lost a lot of money of this job as a reason for not doing the right thing here. FWIW, they seem like nice guys (at least when talking to them) but from a business and quality of work (not to mention value), I would steer clear from these guys. I'm really disappointed because generally you want to support local businesses. I think this is one of those cases where when pushed to the limit, they won't actually pony up to fix the problem.

Google Review
Jacquelin Lloyde on Allstar Plumbing

I am 94 years old and live by myself, and it can be very difficult for me to manage home repairs. I do not use the internet very much, but Joseph kindly showed me how to use speech-to-text on my phone so I could leave this review myself. I truly wanted people to know how wonderful he was.

For weeks, there was a loud humming noise every time I used the water, and it was driving me crazy. At my age, you appreciate peace and quiet, and the sound was very upsetting.

From the moment he arrived, he treated me with patience, kindness, and respect. I am hard of hearing and move slowly because of arthritis, and he never once rushed me. He took his time to listen carefully and explain everything in a way I could understand.

He didn’t just fix the problem — he checked my whole plumbing system to make sure everything was safe. No plumber has ever done that for me before.

He even had to cut into some of the stucco to do the repair properly, and I was worried the price might go up. It never did. He kept his word exactly. That meant a lot to me.

In my long life, I have met many contractors. Joseph stands out as one of the most honest, hardworking, and compassionate young men I have ever encountered. His workmanship is beautiful, and his character is even better.

If you want someone who truly cares, who does the job right, and who treats you like family, call Allstar Plumbing and ask for Joseph.

Thank you, Joseph. You really are an Allstar.

Google Review
Milan Desai on Allstar Plumbing

Joe L arrived within 2 hours of my evening call and was very respectful and knowledgeable. The price was reasonable and agreed upon up front (no surprises). He was very careful and patient and did not rush the job. He went beyond just fixing the surface problem to helping investigate the root cause and giving good, honest advice.

Google Review
Sasha Lobovskaya on Allstar Plumbing

Joseph L. Is the most incredible, hardworking young man I have ever seen in my entire life. Seeing the drive and dedication to perfect his craft was *french kiss*. Thank you Joseph for being so awesome and precise in putting in that water heater. Couldn't have done it without you! By the way, this man deserves a raise. Not only is his work ethic incredible and the quality of his work pristine, he has amazing customer service skills, and does it all with a smile on his face (: thanks again Joseph L. Keep up the good work!

Google Review
Carter Isaias on Allstar Plumbing

I recently called for plumbing repairs and was extremely impressed with the service. The technician arrived on time, was friendly, and quickly diagnosed the problem with my pipes. Everything was explained clearly, and the repair was completed efficiently and professionally. They also gave helpful tips to prevent future issues, which I really appreciated. The team was courteous, respectful of my home, and worked diligently to get everything back in perfect order. I will definitely call them again for any plumbing needs.

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Frequently Asked Questions

Typical calls include leaks, running toilets, clogged drains, noisy pipes, and water heater problems. The team also replaces faucets and valves, addresses low water pressure, and troubleshoots temperature fluctuations.

Yes, service is available 24 hours a day, seven days a week. Call the main number to request immediate help or schedule the next available appointment.

Yes, technicians review findings and pricing before work begins so you can approve the scope. If additional issues are discovered, they discuss options before proceeding.

Yes, technicians service both repairable issues and full replacements when needed. They assess age and condition, then explain costs and timelines for each option.

Clear access to the affected area and the main shutoff if known. If the issue involves water leakage, place a towel or bucket under the area and avoid using fixtures feeding the leak.
 Verified Listing

Opening Hours


  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

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Business Details


Business Rating
4.80 (318 reviews) FeaturedPro Business
Address
326 Phelan Ave # A, San Jose, CA 95112
Phone
Business Type
plumber
City Page

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