Plumber in
San Ramon, CA
Fast, Reliable Plumbing for San Ramon's Growing Communities
San Ramon has grown into one of Contra Costa County's most dynamic cities, and Guerra Bros. Plumbing is proud to serve every corner of it. We dispatch from our Concord shop on Medburn St, putting our licensed plumbers on your doorstep fast — whether you're in Dougherty Valley, near Bishop Ranch, or anywhere in between. From new-construction warranty calls to aging-pipe emergencies, we respond quickly so your day stays on track.

“Guerra Bros. had a technician at my Dougherty Valley home within the hour — fixed a slab leak I was dreading and the price was completely fair.”
Jennifer M.
San Ramon, CA · Google
Why San Ramon Calls Us
We're not routing
from another city.
Our crew rolls out from our Concord shop on Medburn St every morning, which puts us in San Ramon faster than most East Bay competitors. We know the quickest routes down I-680 and Crow Canyon Road, so when you call, we arrive — not just promise to.
San Ramon is a city of contrasts: Dougherty Valley's sprawling 2000s-era subdivisions and City Ranch townhomes sit alongside older neighborhoods near Bollinger Canyon where cast-iron and galvanized lines are reaching the end of their service life. Bishop Ranch Business Park and the Crow Canyon commercial corridor demand commercial-grade response times. We understand the specific plumbing profiles of every pocket of this city and come prepared.
Whether you manage a corporate campus near Bishop Ranch, own a single-family home in Dougherty Valley, or run a retail space on Crow Canyon Road, Guerra Bros. handles everything from routine drain cleaning and water heater replacements to full repiping and sewer line rehabilitation — residential and commercial, big and small.
CA Licensed
CA Lic. #802256
Family-Owned
20+ years in business
Res. & Commercial
All property types served
Local Dispatch
Based in Concord, CA
What We Do in San Ramon
Plumbing services
in San Ramon, CA
The full range of residential and commercial plumbing — available right here.
Water Heater Repair in San Ramon
Same-day tank & tankless repair, all brands.
Learn moreDrain Cleaning in San Ramon
Snaking and hydro jetting for any clog.
Learn moreSewer Repair in San Ramon
Main line diagnosis, repair, and replacement.
Learn moreLeak Detection in San Ramon
Hidden leak location without tearing walls.
Learn moreRepiping in San Ramon
Full copper repiping for aging pipe systems.
Learn moreEmergency Plumbing in San Ramon
Urgent calls prioritized — same-day response.
Learn morePrivate Sewer Lateral in San Ramon
Sewer lateral inspection, repair, and permit help — selling or remodeling?
Learn moreHow It Works
From your first call
to a confirmed fix.
- Step 1:
Call & Describe
Tell us what's going on — a leak, no hot water, a slow drain. We ask the right questions so we arrive prepared.
- Step 2:
On-Time Arrival
We're dispatched from Concord — close to every city we serve. You get a real arrival window, not a 4-hour guess.
- Step 3:
Diagnose & Quote
We inspect the problem, explain what's causing it in plain language, and give you a firm price before any work starts.
- Step 4:
Fix & Confirm
We complete the repair, test everything, and walk you through what we did. Job isn't done until you're satisfied.

Customer Reviews
Don't take our
word for it.
“Called Guerra Bros. on a Sunday morning for a burst pipe in my Dougherty Valley home and they were here in under an hour. Professional, clean, and honest about what it would cost. Highly recommend.”
“Our office at Bishop Ranch had a stubborn drain backup that was affecting the whole floor. Guerra Bros. sent a commercial crew, scoped the line, cleared the blockage, and had us back up and running same day. Great service.”
“Had my water heater fail in the City Ranch area. Guerra Bros. replaced it the next morning with a quality unit at a price that beat two other quotes. Very happy with the work.”
Service Area
Also serving cities near San Ramon
We cover all of Contra Costa County. If you're not in San Ramon, we're likely already serving your city.
FAQ
Common questions
What San Ramon homeowners and property managers ask before calling us.
Call (925) 288-0409We dispatch from our Concord shop on Medburn St and typically reach San Ramon in 30–50 minutes depending on traffic. For plumbing emergencies in Dougherty Valley, City Ranch, or the Crow Canyon corridor, call us at (925) 288-0409 and we'll give you a realistic ETA right away.
We serve all of San Ramon, including Dougherty Valley, City Ranch, Bollinger Canyon, the Bishop Ranch Business Park area, and every neighborhood along Crow Canyon Road. If you're in San Ramon, we come to you — no exceptions.
Yes. Guerra Bros. Plumbing holds CA Lic. #802256, issued by the California Contractors State License Board. We carry full general liability and workers' compensation insurance, so you're protected on every job.
We handle the full range: water heater repair and replacement, drain cleaning, sewer repair and inspection, leak detection, repiping (copper and PEX), and 24-hour emergency plumbing. We work on both residential properties and commercial buildings, including the large corporate campuses at Bishop Ranch.
Pricing depends on the job scope, but we provide upfront written estimates before any work begins — no surprise charges. Many San Ramon homes in Dougherty Valley have modern PEX plumbing that can be faster and less expensive to repair than older galvanized systems found in other parts of the city. Call (925) 288-0409 for a free phone consultation and we'll give you a ballpark before we even schedule a visit.