The answer to 'toilet repair replacement frequency' is that most toilets last 10-15 years with proper maintenance. Factors like water quality, usage, and care can impact the lifespan of a toilet. Signs it's time to replace a toilet include cracks, constant running, or inability to flush properly.
While minor toilet repairs like replacing a flush valve or wax ring can often be done by a homeowner, more significant issues like a cracked tank or bowl usually require a professional plumber to replace the entire toilet. Replacing the toilet is generally recommended over repeated repairs once a toilet reaches the end of its expected lifespan.