Replacing windows can be costly, ranging from $300 to over $5,000 per window. Learn what factors influence the price in 2026.

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

But the latest window air conditioners are capable of cooling and dehumidifying an apartment nearly as quietly and efficiently as a built-in system. When you set the temperature on a regular window AC ...

We tested the Windmill AC for 18 months to see if the viral window unit lives up to the hype. Here’s why it impressed our experts.

As is the case for many people, my home cannot be retrofitted with central air. My 100-plus-year-old Brooklyn apartment, which features prominently in my seven years of air quality reporting for WIRED ...