Bathroom fixture installation
& repair in Concord & the Bay Area.
Toilets, showers, tub fillers, vanities. Installed to code. Done in one visit.
Whether you're upgrading fixtures or dealing with a running toilet at midnight, we handle the full scope — diagnosis, removal, installation, and testing. No partial jobs, no mystery leaks two weeks later.
All fixture types
Toilets, shower valves, tub fillers, faucets, bidets.
Customer-supplied fixtures welcome
Bought it yourself? We install it.
Honest upfront pricing
Flat price before we start — no hourly surprises.
CA Lic. #802256
Licensed, insured, family-owned since 2001.

“Thorough, professional and cost effective. Vince was fantastic! Thank you Rod!”
Jeff R.
Pleasant Hill, CA · Yelp
What We Do
Every bathroom fixture.
Installed to last.
Bathroom fixtures fail in predictable ways — worn flappers, cracked fill valves, corroded shower cartridges. Most repairs are done in a single visit. When replacement makes more sense, we tell you that too.
See faucet repair & installationToilet installation
Shower valve repair
Tub filler & spout
Vanity faucets
Toilet repair
Bidet installation
Shut-off valves
Supply lines
How It Works
From your first call
to confirmed dry.
- Step 1:
Assess & Advise
We evaluate the existing fixture and rough-in to confirm what will fit — and flag anything that will add cost before you buy.
- Step 2:
Remove the Old Fixture
We shut off the water, disconnect supply lines, and remove the old fixture cleanly — no damage to surrounding tile or finishes.
- Step 3:
Install to Code
Proper seating, sealed connections, and correct supply line sizing. Every installation is done to current plumbing code.
- Step 4:
Test Everything
We flush, fill, and run water on every connection before calling the job done — no mystery drips two weeks later.

Know the Signs
Repair or replace?
We'll give you a straight answer.
Repair vs. replace
Most bathroom fixture problems have a clear right answer — we'll tell you which.
Running toilet / worn flapper
Repair itThe most common toilet issue. A flapper or fill valve replacement is a 30-minute fix that stops wasting 200+ gallons a day.
Toilet over 20 years old
Consider replacingOlder toilets use 3–7 gallons per flush. A modern 1.28-gallon unit pays for itself in water savings.
Rocking toilet or soft floor
Service neededA rocking toilet usually means a failed wax ring. Left alone, it causes subfloor damage. Address it early.
Signs you have a fixture problem
Small fixture issues become expensive repairs when they're ignored.
- Running or constantly cycling toilet
- Toilet that rocks or has a soft floor around the base
- Shower valve that leaks behind the wall
- Dripping tub filler or spout diverter failure
- Vanity faucet with low pressure or slow drain
- Bidet or toilet seat with no hot water connection
Brands we install
FAQ
Common questions
Everything homeowners ask before calling us.
Toilet installation typically runs $200–$400 depending on whether the existing supply line and shutoff valve need replacement. If the flange is damaged or out of level, that adds to the job. We give you a flat price before we start.
Yes. We install customer-supplied toilets regularly. Confirm the rough-in measurement before buying — the standard is 12 inches from the wall to the center of the drain. Some older homes have 10-inch or 14-inch rough-ins. If you're unsure, we can measure before you buy.
In most cases, no. Replacing a fixture in the same location with the same type does not require a permit in Contra Costa County. If you're moving the drain, changing the rough-in, or adding a fixture in a new location, a permit may be required. We'll advise you based on what the job actually involves.
A running toilet typically wastes 200 gallons a day. The fix is usually a flapper, fill valve, or flush valve — parts that cost $10–$50 and take under an hour to replace. If the toilet is over 20 years old or has had multiple issues, a new low-flow model often pays for itself in water savings within 2–3 years.
Often yes — it depends on the valve access and the trim kit. Many shower valve replacements can be done through the existing wall penetration without removing tile. We'll assess your setup before giving you an answer. If tile work is required, we'll tell you that upfront.
We work with all major brands — Moen, Kohler, Toto, American Standard, Delta, Grohe, and others. We don't have a preferred brand — the best fixture for your home depends on your budget, your existing plumbing, and what you're trying to accomplish.
A toilet swap takes 30–60 minutes. A shower valve replacement takes 1–2 hours depending on access. A vanity faucet is 30–45 minutes. Most single-fixture jobs are done in a single visit. We don't schedule partial jobs.
Customer Reviews
Don't take our
word for it.
“I recently called another plumbing company who quoted $350 labor & $150+ for parts — then said they'd call me when they found the part. Guerra Bros came out within 30 mins, checked out my issue, and fixed it under an hour for $237. Now I have hot water again.”
“Austin came out and pointed out that the new faucet would require removing tile — expensive. He managed to repair and replace what was needed to keep the old set instead. I happily returned the new set. Saved us a lot of money and hassle.”
“Guerra Bros. Plumbing completed work on my rental unit. Again, the work of the employees was thorough, professional and cost effective. Vince was fantastic! Thank you Rod!”
Where We Work
Bathroom Fixture Installation near you.
Same-day and next-day service available in Concord, Walnut Creek, Pleasant Hill, and throughout Contra Costa County.
Don't see your city? Call us — we may still serve your area.
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