A loose door knob will need to be replaced to ensure that it doesn’t come off in your hand. Fix a loose door knob in your own home with help from a remodeling expert in this free video clip. Expert: Andrew Dryden Bio: Andrew Dryden has worked for McHenry Remodeling for five years as a foreman. Filmmaker: Luke Neumann Series Description: Construction work on your home doesn’t have to be something you need to hire a third party to do. Learn how to perform construction work in various areas of your own house with help from a remodeling expert in this free video series.