Done! handles the full range of toilet repairs — from a running toilet that won’t stop cycling to a slow-flushing bowl, a cracked tank, a leaking base, or a toilet that rocks on the floor. Our plumbers carry common replacement parts on the truck and can diagnose and fix most toilet problems in a single visit, without needing to order parts or schedule a return trip.

Running Toilets

A toilet that runs constantly or cycles on randomly (phantom flushing) is almost always a fill valve or flapper issue. The flapper — the rubber seal at the bottom of the tank — wears out over time and allows water to seep past it continuously, causing the fill valve to keep refilling the tank. In Denver’s hard water, flappers and fill valve seals degrade faster than their rated lifespan because mineral deposits prevent a clean seal. A running toilet can waste hundreds of gallons per day, so this is worth fixing promptly even if it’s not causing visible damage.

Weak or Slow Flush

A weak flush is usually caused by clogged rim holes (the small holes under the toilet rim that direct water during a flush) or a partially blocked trap. Mineral buildup from hard water is a common culprit in Denver homes, narrowing the rim holes until the toilet loses flushing force. In older homes, a worn or warped flapper that doesn’t open fully can also reduce flush volume. If cleaning and adjustments don’t solve it, a plumber can determine whether the toilet itself is past its useful life and worth replacing with a modern high-efficiency model.

Leaking at the Base

Water pooling at the base of the toilet after flushing almost always means a failed wax ring — the seal between the toilet flange and the toilet horn. This repair requires removing the toilet, replacing the wax ring, and resetting the toilet. It’s a straightforward job for a plumber, but it’s not a DIY fix to attempt without experience, since improper installation can lead to recurring leaks and sewer gas infiltration. Done! will also inspect the floor flange for damage while the toilet is off — a corroded or broken flange needs to be addressed at the same time.

Rocking or Unstable Toilet

A toilet that rocks side-to-side is a sign that the floor bolts (closet bolts) are loose, the floor around the flange has deteriorated, or the wax ring has failed. Even minor rocking should be repaired promptly — continued movement will eventually break the wax seal and allow sewage to leak under the subfloor where it causes hidden water damage and mold.

Full Toilet Replacement

Sometimes repair isn’t the best value. If your toilet is more than 20 years old, uses 3.5 gallons per flush or more, has a cracked tank or bowl, or has required multiple repairs in a short span, replacement may be more economical. Modern toilets use 1.28 gallons per flush or less — if you’re on Denver Water’s tiered rate structure, a new toilet can meaningfully reduce your water bill. Done! can supply and install a new toilet or install one you’ve purchased.

Toilet Repairs Done! Handles

  • Fill valve and flapper replacement
  • Handle and flush mechanism repair
  • Wax ring replacement and toilet reset
  • Floor flange repair or replacement
  • Supply line replacement
  • Shut-off valve repair or replacement
  • Full toilet replacement and installation

Schedule toilet repair through our kitchen and bath plumbing page. If your toilet isn’t flushing fully and you suspect a partial clog deeper in the drain, our drain cleaning services can clear the line as part of the same visit.