I get asked this question quite often. When it comes to interior painting, there are a few things to consider. First, the quality of the paint you select. Most home owners have an instinct to save money, and go for the cheaper paint. However, this means that you will probably have to redo the paint job much sooner than if you have used the quality paint.
On average, quality paint is around the $30 price point. If quality paint is used, and the walls are kept clean and maintained, an interior paint job can last for up to ten years.
However, if there are children, pets and plenty of parties, the paint may need to be redone sooner than that! As a rule, home owners decide to paint to change the look of a room long before the paint is really ready to be changed.