Toilet repair in San Antonio, TX
Running, rocking, weak flushes and water at the base. Most toilet problems are a few parts inside the tank or a seal under the bowl, fixed in one visit.
Signs you need this
- Tank refills on its own every so often
- Weak or double flush
- Water around the base after flushing
- Handle that sticks or must be jiggled
Why it happens
Nine times out of ten a toilet that runs has a warped flapper or a fill valve that never fully closes, and our minerals wear both out sooner. A puddle at the base points to the seal under the bowl, usually after the toilet has started to rock. That water wicks into the subfloor, so catch it early.
What we check first
- Flapper, fill valve and flush valve condition
- Dye test for silent leaks from the tank
- Bowl stability and the seal at the floor
- Supply line and stop under the tank
Your options
Tank part replacement
New flapper, fill valve or handle. The common fix for running and weak flushing.
Reset with a new seal
Pull the toilet, replace the seal, and correct the flange if it caused the rock.
Replace the toilet
When the bowl or tank is cracked or the model is so old that parts no longer fit right.
Before we get there
- Note whether it runs, rocks or leaks
- Turn off the stop if water is on the floor
- Leave the tank lid off so we can see inside
What affects the price
Tank parts are inexpensive, so most running-toilet calls are mostly labor. Pulling the toilet to reseal it costs more, and fixing a cracked flange or soft floor under it is extra. If the toilet is old enough that a new one costs about the same as the repair, we will say so.
A toilet that runs all night can waste thousands of gallons a month. If your water bill jumped and nothing obvious is leaking, put a few drops of food coloring in the tank. Color in the bowl without flushing means the flapper is leaking.
Toilet repair questions
Is a running toilet an emergency?
Not usually. Turn the stop behind it off if it bothers you and call during the day. Water on the floor is the one to call about sooner.
Why does my toilet clog so often?
Low flow older models, a partial blockage in the trap, or a drain line problem. We check the toilet first, then the line.
Can you fix any brand?
Yes. Most internal parts are universal or easy to match.
Why does my toilet hiss?
The fill valve is not shutting off fully, often because of grit or wear. A new fill valve usually fixes it.