How to operate double hung window sashes

VIDEO: Double hung window troubleshooting

 

VIDEO: The balance mechanism in double hung windows


Removing a sash...

To tilt a sash in, raise it slightly (or lower, if top sash), then release the sash retaining clips on either side; pull gently toward you.

To tilt a sash in, raise it slightly (or lower, if top sash), then release the sash retaining clips on either side; pull gently toward you.

Grasp both sides of sash.
Grasp both sides of sash.
Gently pull up on one side while pushing down on the other.
Gently pull up on one side while pushing down on the other.
Lift sash up and out.
Lift sash up and out.

... then repeat with top sash if desired.


Replacing a sash...

Are your window sashes mounted with closed shoes or open shoes?

Double hung windows have pivot bars on the sash which fit into shoes in the frame. Some windows have closed shoes, and some have open shoes.

Closed shoe
Closed shoe
Open shoe
Open shoe

For windows with open shoes:

Use screwdriver to make sure shoe openings are pointed up.
Use screwdriver to make sure shoe openings are pointed up.
Set pivot bars into shoes.
Set pivot bars into shoes.
Gently rock sash several times to make sure pivot bars are seated securely into shoes, then tilt sash to upright and close.
Gently rock sash several times to make sure pivot bars are seated securely into shoes, then tilt sash to upright and close.

For windows with closed shoes:

 Use screwdriver to pull shoes down, turning C-shaped openings to vertical, facing you.

Use screwdriver to pull shoes down, turning C-shaped openings to vertical, facing you.

 Set one shoe opening slightly lower than the other.

Set one shoe opening slightly lower than the other.

 Insert pivot bar into one shoe, then bring sash to level while inserting pivot bar into other shoe; tilt sash to upright and close.

Insert pivot bar into one shoe, then bring sash to level while inserting pivot bar into other shoe; tilt sash to upright and close.