Painting a house is considered a home renovation. It may not be as involved as some other types of home renovations like remodeling a kitchen or bathroom, but it is still a home renovation. Home renovations are upgrades that do not change the purpose of a room. So, when you paint a bedroom, it is still a bedroom. In fact, you could renovate by painting, recarpeting, refurnishing, and installing a new window and door in your bedroom and it will still be a bedroom. If you change the bedroom into something different like a closet or dining room you are remodeling, not renovating. Although sometimes subtle, there is a difference.