Toilet Repair in Houston for Running Toilets and Leaks

A running or leaking toilet can quietly push up your water bill. Spring Branch AC repairs flappers, fill valves, floats, and flush problems for Houston-area homes, and our phones are answered 24/7.

364+ Google reviews from Houston-area clients

What Toilet Repair Covers at Spring Branch AC

Most toilet problems start inside the tank. At Spring Branch AC, the leaks we find most often come from worn parts or a flushing mechanism that has slipped out of alignment. Our technicians handle the common toilet repairs Houston homeowners call about:

  • Running toilets that keep filling or refill on their own between flushes
  • Flapper replacement when a worn flapper lets water seep from the tank into the bowl
  • Chain adjustment when the flush doesn’t work the way it should
  • Fill valve replacement when the valve fails to shut off completely
  • Float adjustment when the fill level is set too high
  • Toilet leaks from worn or misaligned tank parts
  • Tank condensation, often called a “sweating” toilet

A running toilet can trace back to the flapper, the chain, the fill valve, or the float. Swapping the wrong part leaves the problem in place. Our technicians find the root cause before starting work, then fix it correctly the first time so you aren’t paying for a repeat visit.

Real technicians work here, not professional salespeople. Your technician explains what they found and what the repair will cost before any work begins.

Our plumbing division launched just before the 2021 Texas freeze. When pipes burst across Houston, our team took on plumbing calls all over the city, and plumbing has been a growing part of what we do ever since. Toilet repair is one part of our full lineup of plumbing services.

Signs Your Toilet Needs Repair

The toilet keeps running after a flush Water that won’t stop flowing usually points to a worn flapper, a fill valve that won’t close, or a float set too high.

Water flows into the overflow tube Once the tank is full, water should stop. Water spilling into the overflow tube means the fill valve is set too high or failing.

Color shows up in the bowl during a dye test If food coloring added to the tank appears in the bowl without a flush, water is leaking past the flush valve.

The flush is weak or doesn’t work right Flushing problems often come from a chain that needs adjusting or tank parts that have worn out.

Beads of water form on the outside of the tank A sweating tank happens when cold water in the tank meets humid bathroom air.

Your water bill climbs with no clear reason Even a small, silent toilet leak can raise your monthly water bill.

Why Houston Homeowners Call Spring Branch AC

Master Plumber on Our Team

Our team includes a master plumber, and our plumbing work ranges from toilet repairs to tankless water heater installs.

Trained in Plumbing and HVAC

Every Spring Branch AC technician is cross-trained in both plumbing and HVAC, so the same trusted team covers both.

Family Owned Since 1956

Spring Branch AC has served the Houston area for more than 60 years and is family-owned and veteran-owned.

Fully Insured

Spring Branch AC carries full insurance coverage on the work we do in your home.

Toilet Repair FAQs

Remove the tank lid and flush. After the tank refills, add several drops of dark food coloring or a leak detector tablet to the tank and wait at least 20 minutes. If color appears in the bowl, the flush valve is leaking.

A running toilet usually comes from a worn flapper, a chain that needs adjusting, a fill valve that won't close, or a float set too high. To check the fill valve, remove the tank lid and watch whether water keeps flowing into the overflow tube after the tank is full.

Toilet tank condensation happens when cold water fills the tank and meets humid bathroom air. Fixes include insulating the inside of the tank with a kit, using a tank cover, or installing a mixing valve on the cold water supply. The mixing valve adds just enough hot water to bring the tank water to room temperature.

Yes. Most residential plumbing leaks are in the toilet tank, and even small, silent leaks can significantly increase a monthly water bill.

What should I do if a toilet or pipe leak is flooding my home? Turn off the water at the main shutoff valve right away, or at the meter if you can't find the valve. Call a plumber, contact your insurance company if there's damage, and don't touch any wet electrical fittings.

The cost depends on which part has failed. Spring Branch AC offers free estimates, and your technician will explain the price before starting any repair.

Professional drain cleaning, a safer choice than chemical drain cleaners that can wear down pipes over time.

Repair and installation for tank and tankless water heaters, including annual flushing for Houston’s hard water.

Faucet, sink, and tub repair, plus new plumbing fixture installation for Houston-area homes.

Leak detection and repair, plus leak detectors that help you catch plumbing leaks early.

Plumbing Service Areas

Spring Branch AC is based in Tomball and provides plumbing repair across the Greater Houston area, including:

Call Spring Branch AC About Your Toilet

Tell us what your toilet is doing and we’ll send a technician. There’s no extra charge for weekend or after-hours calls.

Scroll to Top