Which of the following is NOT included in the definition of Home Improvement?

The concept of Home Improvement typically encompasses activities that enhance or alter a residential property. This includes the sale or installation of various improvements that can add value or functionality to a home, but it does not generally cover the more specialized category of decorative goods unless they are tied to a home renovation project.

When considering the options provided, the sale or installation of decorative goods is usually seen as more related to personal styling rather than structural or substantial improvements to a residential property. Home improvement activities typically focus on renovations, additions, or repairs that enhance a home's usability, safety, or aesthetic longevity.

In contrast, adding to residential property, repairing a roof, and the construction of custom homes all represent direct modifications or improvements to a property’s structure or functionality. These activities involve significant work that typically requires a home improvement license. Thus, decorative goods' sale or installation does not fit the standard definition of home improvement in the context of construction and licensing.