In this guide, we reveal expert-backed tips for installing a window air conditioner—and our recommendations for the best units for your home.

Installing a window air conditioner is typically a straightforward DIY process that can quickly transform a muggy room into a much more comfortable space. If you have any questions about your ...

Learning how to install a window AC unit means that you can get the unit in quickly and safely as soon as the warm weather hits.

Consumer Reports' step-by-step window air conditioner installation instructions will prevent damage to your unit and prevent it from falling out of the window.

Measure every side of the window frame for a snug fit. Use 2x4 lumber or full-length piano hinges to connect pieces of plywood for extremely large windows, such as sliding glass doors.