The answer is yes, but there may be some exceptions. For example, if you have a very old, narrow, or very thin window, you'll want to ensure that the bracket you purchase is rated for that specific type of window. Additionally, some brackets are made specifically for certain types of windows, so it's essential to read the product description before making your purchase. In general, however, air conditioner brackets can be used on most types of windows. Follow the instructions included with your bracket to ensure proper installation.