San Jose Plumbing · Built to Hold

When the plumbing
gets serious,
call the Brains.

Leaks, sewer failures, water heaters, and full repipes — diagnosed clearly, repaired cleanly, and built to last across San Jose. Nearly two decades under these homes.

Tell us what's happening. Photos help. We'll confirm the next step.

CSLB #1111343
San Jose Based
Diagnosis First
Plain-English Scope

Plumbing emergency? Call now — tell us what's happening and we'll get you the next available visit.

Call (408) 966-7003
Drain Brains Plumbing at work on a San Jose home
The work speaks
Real jobs. Real access. Real finished work.
No guesswork

Find it. Explain it. Fix it. Test it.

A clean repair starts with a clean diagnosis. We isolate the problem, show you the supported options, define the work, and test the finished system before we leave.

01
Diagnose first
We find the source before we sell the fix — camera, pressure-test, or leak-locate.
02
Show the failure
Clear findings, real options, no mystery scope. You see what's actually wrong.
03
Protect the home
Access, work areas, testing, and cleanup are part of the job — not an afterthought.
04
Build for the system
The repair has to work with the pipes, pressure, and demand already in the house.
Field notes

We don't guess. Here's what we found.

Real jobs from the South Bay — the symptom, what we actually found, and the fix. Real photos, no stock.

Corroded tee fitting cut from a leaking copper water main
South BayWater Main

Water surfacing in the front yard

The call
Water surfacing in the front yard with no obvious source.
What we found
Excavated about 10 inches down to the leak — a pinhole at a capped tee, where the copper main had been laid against the old galvanized line.
The fix
Replaced the failed fitting and section in copper, kept clear of the old galvanized main.
Corroded galvanized water pipe with the bore nearly closed by rust
South BayWater Service

Old galvanized main, corroded and leaking

The call
Low pressure and a leak on the underground water service line.
What we found
A 1¼-inch galvanized water main, leaking from age and corrosion — the bore nearly closed with rust.
The fix
Full water service replacement — a new line to replace the corroded galvanized main.
Toilet area inspected during an upstairs leak diagnosis
South BayLeak Diagnosis

Water through the downstairs ceiling

The call
Water coming through the downstairs ceiling.
What we found
Not a broken pipe. Traced wet wood at the upstairs toilet flange — consistent with a failed wax seal.
The fix
The repair belongs at the upstairs toilet seal — not the ceiling below.

Every job starts with the same question: what's actually wrong? Book a diagnosis →

Where we work

Serving the South Bay

San JoseSanta ClaraCupertinoSunnyvaleLos GatosMountain ViewCampbellSaratoga

Not sure if you're in range? Call (408) 966-7003 and we'll confirm service availability.

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Tell us what's going on and we'll follow up to confirm availability. Prefer to talk? Call (408) 966-7003.

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Straight answers

Questions homeowners ask

Do you handle urgent plumbing problems?

Call (408) 966-7003 and tell us what's happening — burst pipe, sewage backup, no water — and we'll confirm availability and the next step.

Can you handle older San Jose homes?

Yes — galvanized water lines, cast-iron drains, and undersized mains are exactly what we diagnose and repair or repipe. We fix the actual failure, not patch it.

Will you diagnose before charging me for a repair?

We start by identifying the likely cause, show you what's going on, and confirm the scope before any approved repair. No mystery scope.

Are you licensed?

Licensed with the CSLB (#1111343). You can look the license up with the California State License Board before we ever show up.

Water where it
shouldn't be? Call the Brains.