Lee Wallender is a home improvement writer of nearly 20 years and specializes in home remodeling, repair and maintenance. Cassidy was an updates editor whose main responsibility is to write and edit ...

Installing a window air conditioner is a sweaty job, so you might be tempted to simply open the window, boost the air conditioner into place, close the window, and hope for the best. Not a good idea, ...

The best window AC units of 2026 are both powerful and energy-efficient. Our top five picks include quiet models from LG, ...

The first time I installed an air conditioning unit—heaving and wedging it with no small effort onto the sill of a fourth-floor bedroom window—I was shocked that more units don’t fall out and plummet ...

We got our hands on multiple units and looked for models that are quiet, energy-efficient, and easy to install.

Q: I am renting a small, old home without central air conditioning. I have a window air conditioner, and the past few years I’ve awkwardly filled in the space around it with a large piece of plywood.

Key PointsWindow AC units cool faster, use less energy, and are more cost-effective for long-term use.Portable AC units offer ...

Units with Wi-Fi support can be set to run on a schedule, or integrated with other smart home devices. This often requires installing an app, but some ACs offer Matter support, which allows you to ...

Trying to choose between a portable AC and a window air conditioner? Experts break down the pros, cons, cooling power, and ...

When it comes to small spaces, your options for cooling can be very limited. Two popular choices are window AC units and mini ...

DIYer and woodworker April Wilkerson installs a window AC unit in her workshop for improved cooling.

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 specific ...