This Old House is an American home improvement media brand with television shows, a magazine, and a website. The brand is headquartered in Stamford, Connecticut. The television series airs on the Public Broadcasting Service (PBS) television network and follows remodeling projects of houses over a series of weekly episodes.

The concept of home improvement, home renovation or remodeling is the process of renovating, making improvements or making additions to one's home. Home improvement can consist of projects that upgrade an existing home interior, exterior or other improvements to the property. Home improvement projects can be carried out for a number of different reasons; personal preference and comfort, maintenance or repair work, making a home bigger by adding rooms/spaces, as a means of saving energy, or to improve safety.