You may need to repaint the home exterior every five to 10 years, depending on your climate, the quality of the previous paint job, and the material of your exterior walls. Below are some general guidelines on how often you should repaint various surfaces: Aluminum: 5 years Wood: 3–7 years Painted brick: 15–20 years If you notice your paint chipping or cracking, it may be a sign that you need to repaint your home sooner.