Double-hung windows are slightly more expensive, easier to clean and ventilate, and less energy-efficient. Single-hung windows have only one operable sash, which is the framed glass panel that moves ...

Find the best window replacement companies for your home in 2026. We analyzed top installers for cost, quality and customer reviews.

The main difference between single-hung and double-hung windows is the number of movable sashes. Single-hung windows are generally less expensive but offer more limited ventilation. Double-hung ...