To provide a double-hung window or a door therewith, facilitating machining of a connection between a head and a sill to reduce man-hours for machining.

The double-hung window or a door therewith has vertically movable sashes provided in a frame comprising a head, a sill and right and left jambs 1c, and has a balancer 25 provided in the jamb 1c for suspending the movable sashes in such a manner that the sashes can be held at a certain height. The jamb 1c comprises a jamb body 1p and a jamb attachment 1q positioned inside the jamb body 1p. The head 1a and the sill 1b have their respective ends butted against the insides of the jamb bodies 1p and the jamb attachment 1q is fixed between the upper and lower ends of the jamb 1c.