The answer to 'how long does drain cleaning last' is that the effectiveness of a drain cleaning can vary, but typically lasts between 6 months to 1 year for most households. The duration depends on factors like the severity of the clog, the type of drain cleaning method used, and the overall condition of the plumbing system.
For example, a simple DIY drain cleaning with a plunger or drain snake may clear an isolated clog and provide relief for several months. However, a more thorough professional drain cleaning using a hydro-jet or chemical treatment can often keep drains clear for up to a year, especially if the plumber also identifies and addresses the root cause of the problem.