The answer to 'how long does grout cleaning last' is that properly cleaned and sealed grout can last 1-3 years before needing to be cleaned again. Grout is a porous material that can easily trap dirt, grime, and bacteria, so regular cleaning is important to maintain the appearance and sanitation of your tile floors and walls. With proper care and maintenance, you can extend the time between deep grout cleanings.
The longevity of your grout cleaning depends on factors like how much foot traffic the area receives, what types of spills or messes occur, and how well you clean and seal the grout after each deep cleaning. In high-traffic areas like kitchens and bathrooms, you may need to clean the grout every 12-18 months. In lower-traffic areas, you can often go 2-3 years before the next deep clean is required.