Double-hung windows allow both the bottom and the top sash to move so you can have two sashes open at the same time. Even though they look identical from the street, there are some major factors ...

You may wonder how long do sash windows last? The answer is reassuring - with proper care, they can last decades, even more ...

Large roof window in which the open sashes create a balcony, increased operational safety and burglary resistance, multi-point locking system, recommended for installation in rooms without a knee ...