Is it time to replace your window unit AC? It's not always easy to tell, but these signs could mean you're due for a new AC unit in your home.

Your window air conditioner is old On average, window units last around 10 years. That means if your older window unit is acting up in any way or just not performing the way it used to, it's ...

Window air conditioner: Considered a self-contained unit, window air conditioners are designed for cooling a single room by fitting into a window or an opening in an exterior wall.

A window air conditioning unit is easy to install in almost any outside window in your home. As with portable air conditioners, one of these units may cost from $150 to over $1,000, depending on ...

Here are the most common problems that crop up with window and central air conditioners—many you can fix yourself—plus CR's top-rated window ACs.

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.

When you bring out your AC unit from wherever you stashed it through the winter, it’s wise to go through a quick list of check-ups before putting it in the window and flipping the switch.

Air-conditioning units are covered by homeowners insurance for things like fire and falling trees. But you're responsible for proper maintenance and replacement when your unit wears out.

I loved my top-rated Midea U-Shaped Window AC, until I learned it was recalled for mold risk. Here's how I'm dealing with it.