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Toilet Replacement in Miami, FL

A cracked tank, a bowl that leaks at the base after every repair or an old toilet that clogs often. Call to reach an independent plumber who replaces toilets.

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New white toilet in a light bathroom

The short answer

Replacing a toilet means removing the old one, checking the flange and floor underneath, setting the new toilet on a new wax or foam seal and connecting it with a new supply line and, ideally, a new shut-off valve. Most toilets fit the common 12 inch rough-in. Any toilet sold new in the US uses 1.6 gallons per flush or less.

Measure before you buy. The rough-in is the distance from the finished wall to the center of the bolts at the base. Most homes are 12 inches; some older homes have 10 or 14. Bowl shape, round or elongated, and height matter too. Comfort-height bowls are about 17 to 19 inches tall.

In condo buildings, the toilet connects to a shared stack, and some associations ask that plumbers carry insurance or schedule work in set hours. Old 3.5 gallon toilets are still common in homes from the 1970s and 1980s; replacing one with a modern model uses noticeably less water. If the old toilet only runs or rocks, fixing it may be enough.

Common causes

  • Cracked porcelainHairline cracks in the tank or bowl cannot be sealed reliably and tend to grow.
  • Repeated clogsSome early low-flow toilets flush poorly and clog with normal use.
  • Worn-out partsOld or unusual toilets may need parts that are no longer made.
  • Damaged flange or floorIf the toilet has leaked for years, the flange or subfloor may need repair during the swap.

What may be inspected

  • The rough-in measurement and the flange condition
  • The floor around the base for softness or rot
  • The shut-off valve and supply line
  • Whether the new toilet clears the vanity, door and wall

Safety first

Problem guides

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Questions about toilet replacement

Measure from the finished wall to the center of the floor bolts. Most are 12 inches.

Elongated bowls are longer and often more comfortable; round bowls fit tighter spaces.

Yes. New toilets use 1.6 gallons per flush or less, compared with 3.5 or more in many older models.

Many people find the taller bowl easier to use, especially with knee or hip problems.

That usually means a long-term leak. The subfloor may need repair before the new toilet goes on.

Many plumbers install a toilet you supply. Ask on the call and have the box or model number ready.

Some buildings set work hours or require notice before plumbing work. Check with building management.

It is often a good idea, since old valves can fail when turned. Ask the plumber.