More affordable. Single hung windows are typically less than double hung. If you’re replacing a lot of windows at once, that adds up fast.
Fewer moving parts. Less hardware means less to go wrong over the life of the window.
Energy-efficient. Because only one sash moves, single hung windows tend to seal a little tighter than double hung — which can mean slightly better energy performance.
Clean, classic look. Single hung windows are timeless. They work with traditional, transitional, and modern homes.
If you want to clean the outside of your upper-floor windows from inside the house, you’ll want double hung — single hung windows can’t tilt the top sash inward. And if airflow is a priority, double hung gives you more options.
For most other situations, single hung is the smart, budget-friendly choice.