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OC Plumbing & Water Heaters

Licensed
Licensed
Free service call

Heater problems

Responds in about 1 min

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If you hire this pro, you’re covered by a money-back guarantee. Learn more

About
Plumbing You Can Trust. Service You Deserve. OC Plumbing & Water Heaters is a family-owned plumbing company serving the East Bay, Tri-Valley, Peninsula, Santa Clara, San Francisco, and North Bay Area’s. We specialize in boiler and water heater installation, repair, and replacement, along with full-service residential and commercial plumbing. Known for honest pricing, high-quality workmanship, and dependable service, our licensed and insured technicians are available 24/7 for emergency plumbing needs.
Overview

Hired 29 times

Serves Newark, CA

Background checked

License verified

1 employee

2 years in business

Business hours

Sun12:00 am - 11:59 pmMon12:00 am - 11:59 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, and Zelle.

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

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2025

Credentials

License verified

C36 – Plumbing Contractor

License state: CA

Background checked

Passed by Oscar Cortez Rivas on Jul 17, 2025.

Services offered
Heater services needed
Heater problems

Maintenance needed

No hot water

Water isn't hot enough

Hot water turns off during use

Type of water heater

Gas tank

Electric tank

Gas tankless

Electric tankless

Projects and media
Projects and media
Reviews

Customers rated this pro highly for responsiveness, professionalism, and work quality.

Very good 4.6

12 reviews

5

84%

4

8%

3

0%

2

0%

1

8%

Read reviews that mention:

pro avatar
Olivia B.

Nov 12, 2025

•

Hired on Thumbtack

OC Plumbing (Oscar and Jaden) we great! Oscar arrive to our home. I was able to give us an estimate and installed our tankless water heater. It was very professional and knew what he was doing. I would highly recommend OC plumbing to everyone that I know. Thank you for doing such a great job. Will definitely hire you again if we need you in the future.

Details: Yes, the location has an existing heater • Gas tank (standard) • I would like to discuss with the professional • House

Water Heater Installation or Replacement
pro avatar
Alani D.

Nov 24, 2025

I had an amazing experience with OC Plumbing & Water Heaters. They were extremely transparent about their pricing and walked me through everything before starting any work. My water heater needed to be replaced, and they were able to come out the same day and complete the job very quickly. The quality of their work was excellent, and their professionalism really stood out. I couldn’t be happier with the service - highly recommend them!
pro avatar
Malissa W.

Sep 2, 2025

•

Hired on Thumbtack

Excellent! Oscar was so professional and knowledgeable. He was on time, completed the job and even came back to assure there was no leak after the faucet replacement. I would recommend anyone to use this service. Plumbing at it finest!

Details: Yes, repair is urgent • No, the building is not currently flooded • Sink • House

Plumbing Pipe Repair
pro avatar
Nicki M.

Jul 13, 2025

We hired OC Plumbing & Water Heaters to install our new water heater and had a great experience! Super quick, efficient, and professional. Oscar is an honest plumber with great pricing. We’ll definitely be calling them again!
pro avatar
Sonia R.

Jan 27, 2026

Highly recommend this plumbing company! From the first call to the completed job, everything was handled professionally. They arrived on time, explained the work clearly, and provided upfront pricing with no surprises. The work was done cleanly and efficiently, and they made sure everything was tested before leaving. Honest, reliable, and knowledgeable. Exactly what you want in a plumber!
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