San Francisco service · Since 1929
Toilet repair for running, leaking, loose, and repeatedly clogging toilets.
Lutz Plumbing diagnoses toilet problems in San Francisco before recommending a repair or replacement. We inspect the fixture, tank components, supply, shutoff, mounting, flange, base seal, and drain symptoms that relate to the concern.
Quick answer
The visible symptom is not always the full repair scope.
A running toilet can be a tank-component problem. A leak at the base can involve the seal, mounting, flange, floor connection, supply, or the fixture itself. A repeated clog can be isolated to the toilet, or it can be a sign that the nearby drain needs a different diagnosis. We inspect the conditions that determine the appropriate repair.
If water is actively overflowing, avoid flushing again and close the fixture shutoff valve if it is safe to reach. Do not use chemical drain cleaners. If wastewater is returning through more than one fixture or entering the home, use our emergency-plumbing guidance.
Emergency-plumbing guidanceWhat to send with your request
- A photo of the full toilet and the area where water, movement, or damage is visible
- Whether the toilet runs, leaks, rocks, flushes weakly, clogs, or overflows
- Whether any other sink, tub, shower, or toilet is also draining slowly or backing up
- The toilet brand or model if known, plus any previous repair or replacement history
Common toilet problems
Start with the symptom, then find the condition causing it.
The same symptom can have different causes. A clear inspection helps avoid treating a drain, flange, or supply problem as a simple tank repair.
A toilet keeps running or refilling
The symptom can involve a flapper, fill valve, flush valve, handle, adjustment, or another tank component. We identify the failed part before recommending a repair.
Water is at the base or supply connection
A leak can come from the supply, shutoff, tank connection, seal, mounting, flange, or a damaged fixture. The source matters because the correct repair is not always visible from above the floor.
The toilet rocks, shifts, or has an odor at the base
Movement can affect the seal and can point to a mounting, floor, flange, or fixture condition that needs inspection before the toilet is reset or replaced.
A toilet clogs, drains slowly, or flushes weakly
A single toilet can have a fixture or nearby branch-line issue. Repeated symptoms, multiple slow fixtures, or wastewater returning elsewhere can require drain or sewer diagnosis instead.
What a toilet-service visit should answer
Find the source before choosing the scope.
The goal is to identify the affected fixture and connection, then explain the appropriate repair, replacement, or related drain-service path.
Confirm the symptom and history
We start with what the toilet is doing, when it happens, whether the issue is isolated, and any prior repair or replacement history.
Inspect the fixture and its connections
The inspection can include tank components, supply, shutoff, mounting, base seal, flange, floor connection, and the drainage symptoms that relate to the concern.
Explain the practical next step
You receive a repair, replacement, or related drain-service recommendation based on the condition found, before work beyond the diagnostic scope begins.
Repair or replacement
Repair the serviceable part. Replace when the condition supports it.
We do not use age alone to recommend a new toilet. The fixture, its parts, and the connection below it determine the practical path.
Repair a serviceable component
A fill valve, flapper, flush valve, handle, supply connection, shutoff, seal, or mounting concern can often be corrected when the fixture and the connections below it remain sound.
Correct the connection behind the symptom
A base leak, rocking toilet, weak shutoff, or flange problem can require work below the fixture. Correcting that condition can matter more than replacing a visible part.
Replace when the condition supports it
Cracked porcelain, an unserviceable fixture, repeat failures, a damaged mounting condition, or an incompatible replacement part can change the recommendation from repair to replacement.
What changes the scope
The diagnosis, fixture condition, connection, and access drive the work.
We inspect before recommending a larger project. These are the factors that can change the time, materials, coordination, and price.
Related toilet and drain work
A toilet concern can lead to a fixture, drain, or smart-toilet decision.
When the inspection shows an issue beyond the everyday toilet repair, these pages explain the adjacent service. We keep the recommendation tied to the condition that is actually present.
Toilet repair questions
Know what a toilet-service visit should clarify.
The first conversation should make the symptom, safety boundary, and repair path clearer.
Do you repair toilets in San Francisco?
Yes. Lutz Plumbing diagnoses and repairs running, leaking, loose, weak-flushing, and clogged toilets in San Francisco. We inspect the toilet, its supply and shutoff, the mounting and base connection, and related drain symptoms before recommending repair or replacement.
Why does my toilet keep running or refilling?
A running or refilling toilet can involve a flapper, fill valve, flush valve, handle, adjustment, or another tank component. We identify the failed part and the condition of the rest of the fixture before recommending a repair.
Can you fix a toilet leaking at the base?
Yes. Water at the base can come from a seal, flange, mounting condition, tank or supply connection, or the fixture itself. We inspect the source before resetting the toilet or recommending a replacement, because the floor connection may need attention too.
What should I do if my toilet is overflowing?
If it is safe to do so, close the fixture shutoff valve and do not flush again. Keep water away from electrical items, use towels or a container to limit spread, and do not add chemical drain cleaners. Wastewater coming back through more than one fixture can indicate a larger drain or sewer concern.
Does a clogged toilet need toilet repair or drain cleaning?
An isolated toilet clog can have a fixture or nearby branch-line cause. Repeated clogs, multiple slow drains, or wastewater returning through another fixture can point to a drain or sewer concern. We use the symptoms and inspection to identify the appropriate path.
Should I repair or replace my toilet?
The decision depends on the failed component, the condition of the fixture, the flange and mounting surface, part availability, repeat failures, and the work required below the toilet. We do not recommend replacement solely because a toilet needs a common service part.
Can you replace a standard toilet or prepare for a TOTO smart toilet?
Yes. We can replace a standard toilet and evaluate the flange, shutoff, supply, mounting, and rough-in. For a TOTO smart toilet or bidet, we also verify the model-specific clearance, water, and electrical requirements before installation.
Ready to understand the repair?
Request toilet repair in San Francisco.
Send the symptom, a photo if possible, where water is visible, whether the toilet moves, and whether another drain is also slow or backing up. The detail helps us understand the likely scope before the visit.