The answer to 'how long does pressure washing cleaning last' is that the results of a professional pressure washing can last anywhere from 6 months to 2 years, depending on several factors. Pressure washing removes built-up dirt, grime, and mildew from outdoor surfaces like siding, decks, driveways, and patios. The longevity of the cleaning depends on the material being cleaned, the weather conditions, and how much foot traffic or use the surface gets.
For example, a pressure-washed wooden deck may only stay looking fresh for 6-12 months before needing to be cleaned again, while a concrete driveway could maintain its clean appearance for 1-2 years. Factors like sun exposure, heavy foot traffic, and buildup of new dirt and debris over time will all affect how long the pressure washing lasts. Regular maintenance, such as annual or bi-annual pressure washing, can help extend the lifespan of the cleaning.