Exterior trim painting can last anywhere from 3 to 5 years, but the longevity largely depends on several factors. High-quality paint, proper surface preparation, and the climate where you live all play a role in how long the paint will endure. For example, areas with harsh sun, rain, or extreme temperatures may require more frequent touch-ups. Additionally, regular maintenance such as cleaning and addressing any small cracks or peeling as soon as they appear can help extend the lifespan of your paint job, ensuring that your trim stays vibrant and protected for years. If you are looking for a permanent maintenance free solution consider calling a PVC exterior trim contractor. Cost up front can be higher with PVC trim but it will last 50 years so it is a good option for some homeowners.