Plumber in
Moraga, CA
Quiet hillside community, dependable plumbing service
Moraga homeowners rely on Guerra Bros. Plumbing for fast, reliable service dispatched from our Concord shop on Medburn St. Whether you're near Saint Mary's College or tucked along Canyon Road, we arrive quickly and get it done right.
“They came out the same day and had our water heater replaced before dinner — couldn't have asked for better service.”
Karen M.
Moraga, CA · Google
Why Moraga Calls Us
We're not routing
from another city.
Our shop sits on Medburn St. in Concord — a straightforward drive via Highway 24 and Moraga Road that puts us at your door fast. When Moraga residents call, we dispatch promptly, show up prepared, and quote before we start any work.
We know Moraga's neighborhoods well. Homes in the Rheem Valley and Campolindo area tend to be 1960s and 70s construction with original galvanized supply lines that are quietly corroding. Canyon Road and the Saint Mary's College corridor bring their own terrain challenges — hillside lots, long pipe runs, and sewer lines on slopes that often require trenchless repair methods rather than open trenching.
From single-family homes in quiet residential cul-de-sacs to the limited commercial properties along the Moraga Road strip, we handle the full range of plumbing needs. Repiping, drain cleaning, water heater replacement, sewer repair — we cover it all with the same licensed, insured, family-run care that Contra Costa County has counted on for years.
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 Moraga
Plumbing services
in Moraga, CA
The full range of residential and commercial plumbing — available right here.
Water Heater Repair in Moraga
Same-day tank & tankless repair, all brands.
Learn moreDrain Cleaning in Moraga
Snaking and hydro jetting for any clog.
Learn moreSewer Repair in Moraga
Main line diagnosis, repair, and replacement.
Learn moreLeak Detection in Moraga
Hidden leak location without tearing walls.
Learn moreRepiping in Moraga
Full copper repiping for aging pipe systems.
Learn moreEmergency Plumbing in Moraga
Urgent calls prioritized — same-day response.
Learn morePrivate Sewer Lateral in Moraga
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.
“Had a slab leak scare in my Moraga home and Guerra Bros. came out fast, diagnosed the issue accurately, and fixed it without tearing up my whole floor. Very professional.”
“Old galvanized pipes in our Rheem Valley house were giving us terrible pressure. They repiped the whole place in two days and the difference was immediate. Highly recommend.”
“Called them on a Friday morning for a backed-up drain near Saint Mary's. Showed up same day, cleared the line, explained what caused it. Great experience.”
Service Area
Also serving cities near Moraga
We cover all of Contra Costa County. If you're not in Moraga, we're likely already serving your city.
FAQ
Common questions
What Moraga homeowners and property managers ask before calling us.
Call (925) 288-0409We dispatch from our Concord shop on Medburn St. and can reach Moraga via Highway 24 and Moraga Road — typically within the same business day for urgent calls. For non-emergency work, we schedule at your convenience. Call us at (925) 288-0409 to check availability.
We serve all of Moraga including the Canyon Road corridor, Rheem Valley, the Campolindo area, the Saint Mary's College neighborhood, and properties along the Moraga Road commercial strip. If it's in Moraga, we go there.
Yes. We hold CA Lic. #802256 and are fully bonded and insured for all residential and commercial plumbing work in Moraga and throughout Contra Costa County. You can verify our license through the California Contractors State License Board.
We provide water heater repair and installation, drain cleaning, sewer repair (including trenchless methods for hillside lots), leak detection, copper and PEX repiping, gas line services, and emergency plumbing throughout Moraga. Call (925) 288-0409 to discuss your specific situation.
Homes built in Moraga during the 1960s and 70s commonly have original galvanized steel supply lines that corrode from the inside out, reducing water pressure and eventually leaking. Cast iron drain lines of that era can crack or collapse. Many of these homes also have undersized water heaters by today's standards. We can inspect your system, identify aging components, and recommend targeted repairs or a full repipe — whatever makes the most sense for your home and budget.