A professional designer consults with clients to determine their wants and needs and listens carefully to the client's concerns. This includes helping to establish and manage the project budget.

Because most people have difficulty visualizing finished spaces, one of the designer's most important tasks is to help the client "see" the completed project using 3D and/or virtual reality renderings of the spaces involved.

Research and shopping for and with the client is also very important. An experienced designer has a very large choice of vendors from which to choose.

Coordination of all materials and services is another important service. An experienced designer has a large number of specialists on call to help with construction, electrical work, heating and air conditioning, carpet installation, window treatment installation, wall covering installation, cabinet installation, and countertop installation of all kinds.

In short, the professional Interior Designer is typically responsible for the entire project within the job description of the particular project.