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30 Years
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Emergency
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Trusted Plumbing Services in San Jose, CA
Allstar Plumbing has been delivering high-quality plumbing services since 1996, founded by a third-generation plumber committed to honesty and professionalism. Starting with two plumbers and two trucks, we've grown to a team of 16 technicians serving 4,800 customers annually across the San Jose area. Our focus remains on exceptional customer service, with 24/7 emergency availability and a 100% satisfaction guarantee on all work performed.

We maintain rigorous standards through background-checked technicians, comprehensive insurance coverage, and adherence to local plumbing codes. Our team's average 25 years of field experience ensures expert solutions for both residential and commercial plumbing needs, from routine repairs to complex installations.
Services
Water Heater Repair Gas Piping Repiping Services Leak Detection Sewer Cleaning
Details
  • Year established: 1996
Highlights and features
  • We offer 24/7 emergency plumbing services with 60-minute response times
  • Our licensed technicians provide upfront pricing with no hidden fees
  • All work backed by a 30-day to lifetime guarantee depending on service type
  • 16 experienced plumbers with average 8-10 years field experience each
  • A+ BBB accredited plumbing contractor since 1996
Associations and certifications
  • Better Business Bureau (BBB)
What people say
Prompt repairs Professional team Upfront pricing Excellent service Highly recommended
Services
Water Heater Repair
We provide comprehensive water heater repair and replacement services for both traditional tank systems and modern tankless units. Our certified technicians diagnose issues quickly and implement lasting solutions while ensuring code compliance. Customers benefit from same-day service availability and manufacturer warranty support for new installations.
Gas Piping
Our licensed professionals handle all aspects of gas piping installation, repair, and maintenance for residential and commercial properties. We follow strict safety protocols and local code requirements to ensure safe, leak-free gas system operation. Services include line replacement, appliance connections, and pressure testing.
Sewer Cleaning
We offer advanced sewer line cleaning using modern rooter equipment and hydro-jetting technology to clear blockages and restore proper drainage. Our technicians perform video inspections to identify issues and recommend appropriate solutions, including tree root removal and pipe repair.
Leak Detection
Our specialized leak detection services use thermal imaging and acoustic equipment to locate hidden water leaks without destructive exploration. We repair leaks in walls, under slabs, and in difficult-to-access areas while minimizing property disruption.
Emergency Plumbing
We provide urgent plumbing repair services for burst pipes, gas leaks, and other critical issues with 24/7 availability. Our rapid response team arrives within 60 minutes of service calls and resolves emergencies efficiently while maintaining transparent pricing.
Questions
What plumbing services do you offer?
We provide full-service plumbing including water heater repair, gas line work, sewer cleaning, leak detection, and emergency services for residential and commercial properties.
Do you offer 24/7 emergency service?
Yes, our licensed technicians are available 24 hours a day, 7 days a week for urgent plumbing emergencies with typical response times under 60 minutes.
Are your plumbers licensed and insured?
All our technicians are fully licensed, background-checked, and insured with workers compensation and liability coverage for every service call.
Do you charge by the hour or job?
We charge by the job, not the hour, with upfront pricing provided before any work begins to ensure cost transparency.
What areas do you service?
We serve San Jose and surrounding communities including Palo Alto, Mountain View, Cupertino, Sunnyvale, Los Gatos, and Redwood City.
Do you guarantee your work?
Yes, all our plumbing work is guaranteed with warranties ranging from 30 days to lifetime coverage depending on the specific service performed.
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Reviews (5)
Unique Ali
Jan 13, 2022 Report
Professional in Work. I am satisfied with their work of leakage in bathroom inside of my room Services: Faucet repair, Faucet installation, Garbage disposal repair, Plumbing leak detection, Water heater installation, Plumbing pipe repair
Roopa M.
Nov 18, 2021 Report
PLEASE DO NOT CALL THIS COMPANY! If I could give zero stars, I would. The answering service was overly friendly and a technician came out. We needed a hose bib (tap) replaced in the backyard. All the plumber needed to do was to remove the old one and screw on the new hose bib. The technician made a big show about taking pictures of the existing hose bib and sending it to the manager. The manager's diagnosis was to cut off the metal portion of the pipe and solder on a new one.

He claimed that someone had tried to replace the bib earlier. Charges were going to be a whopping $475! It was too much for us and we sent the technician on his way. The manager called back to explain how honest they were. (LOL) Anyhow, to cut a long story short, another plumber came over the next day. He was amazing - unscrewed the hose bib with the right tool and replaced it all within 15 minutes. He did not charge us a penny, saying that the job was too easy! PLEASE DO NOT CALL THIS COMPANY!
Jim Y.
Nov 06, 2021 Report
I would rate this zero stars if I could. I've made 2 appointments with them on consecutive days and they didn't show up either time. Don't waste your time booking a visit from these clowns.
Jai Dee
May 20, 2021 Report
Stay far away from the the company. The person they brought over was very adversarial and rude. He kept screaming about what needed to be done and tried to mislead me. I had to bring to other plumbers to check his work and they told me I was told lies. I am upset about the money I wasted and time. Do yourself a service and stay away from them!
Pam Bates
Apr 06, 2021 Report
Not a good company to use. They have a few good workers but management does not allow them to do things the correct way if it will cost too much. They were to repipe but wrote it up as a repair, then wanted to charge more money and did not do a complete repipe. The water does not come out correctly upon turning it on. There is brown water that comes out that did not before the repipe. They do not stand behind their work. I would not use this company ever.