- CSLB licensed
- Bonded
- Thumbtack Top Pro
- Background checked
- Same-day service available
Water heaters are our specialty.
Tank, tankless and boilers. Installed, repaired and replaced by a licensed C-36 contractor who does this every day.
Tank vs Tankless
Plain English, no sales pitch. Tap to compare.
- Upfront cost
- Lower to buy and install.
- Energy use
- Keeps 40 to 50 gallons hot all day, even while you're out.
- Lifespan
- Roughly 8 to 12 years in Bay Area water.
- Space
- Takes up a garage or closet footprint.
- Endless hot water
- Runs out, then needs time to recover.
Not sure? We'll help you choose.
Call (510) 648-7729Full-service plumbing for Bay Area homes and businesses.
Leaks, drains, gas lines, repipes, emergencies and water heaters. One licensed contractor for all of it.
Is your water heater failing?
Most homeowners aren't sure whether they need a $250 repair or a new unit. Check your symptoms and get a straight answer before you call anyone.
Is your water heater failing?
Tap everything you're seeing. We'll tell you what it usually means.
Smell gas? Leave the home and call PG&E or 911 first.
Three steps. No surprises.
Call or book online
Tell us what's going on. We'll ask a few questions and schedule a visit, same day when we can.
Get an upfront quote
We diagnose the problem and give you a clear price before any work begins. You decide.
Fixed right and cleaned up
Quality parts, code-compliant work, and a tidy space when we pack out.
What neighbors say after the job's done.
"Professional and knew exactly what he was doing. I'd recommend him to everyone."
"On time and knowledgeable. He even came back to make sure there was no leak."
"Transparent pricing, came out same day, and the quality of the work was excellent."
"Quick, efficient and honest, with great pricing. Exactly what you want in a plumber."
"Fair pricing and a smooth process from start to finish. Minimal hassle."
Why homeowners choose OC Plumbing.
Honest upfront pricing
You get the price before the work starts. No surprise line items when the job is done.
Licensed and bonded
CA CSLB C-36 Plumbing Contractor #1125266, bonded and insured.
24/7 real response
Burst pipe at 2am or no hot water before work, we answer around the clock.
We treat your home like our own
Drop cloths down, shoes covered, work area cleaned up before we leave.
Save on the work you already needed.
$100 Off
Tankless Water Heater Install
Cannot be combined. Mention when booking.
$50 Off
Any Plumbing Repair
Cannot be combined. Mention when booking.
Free
Water Heater Inspection with Any Service
Cannot be combined. Mention when booking.
Based in Newark. Working across the Bay.
We're local to the East Bay and cross the bridges daily for water heater work, emergencies and everyday repairs.
East Bay
Our home turf, from Newark up through Oakland and Berkeley.
Peninsula
Across the Dumbarton for water heaters, leaks and emergency calls.
Santa Clara County
South Bay homes and businesses, from Milpitas to Cupertino.
Oscar Cortez Rivas
Owner · Licensed plumbing contractor
Owner photo coming soon
Meet Oscar.
Oscar Cortez Rivas is a licensed plumbing contractor who started OC Plumbing & Water Heaters to give Bay Area families something simple: honest pricing, and work done right the first time. It's a family-owned shop, when you call, you're talking to the people doing the work.
Questions we get every week
Yes. We're open 24 hours for emergency plumbing, burst pipes, major leaks, sewer backups and no hot water. Call (510) 648-7729 any time.
Plumbing problem right now? We're on the way.
Call for 24/7 emergency service or book a visit online. Upfront pricing either way.