Classic charm meets modern comfort with double-hung windows. These versatile fixtures not only let you tailor airflow and light, but also look great on nearly any home style—and they’re simpler to care for than you might think. Whether you’re installing fresh units in new construction or swapping out decades-old frames, here’s a friendly guide to everything you need to know about double-hung windows: why they’re a smart pick, which materials shine, and when repair gives way to a full replacement.