Painting the interior of your house versus the exterior of your house comes down to a difference in applications and tools that vary depending on the project. Our professional contractors are trained in utilizing the applications, tools, and practices to maximize the efficiency of your painting project. When repainting walls and trim inside that have already been painted the preferred method of application is brush and roller, due to the control you have with it. The only time a spray application should be used inside of a home for a repaint is if you are spraying a popcorn textured ceiling . Popcorn ceilings must be sprayed because if they’re rolled with paint the roller often brings the texture down. On the exterior of the home the preferred method of application is to spray and back roll the siding or body areas and brush and roll the trim areas.