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How to Replace Non-Tilt Block and Tackle Window Balances

The process for replacing a block and tackle window balance in a non-tilt double or single hung window is easy. Follow these simple steps and your window will be working smoothly in no time. 

Step 1:

First, pop out the two take out clips located on each side of the upper portion of the inside jambs. Now, lift the sash evenly up to the take out clips so the balances catch on them and are secured in place. This step allows the sash to be removed from the jambs. Now give the sash a push to the left or right and swing the sash out from one side to remove it.

Take Out Clip in Window Jamb

Shown above is the Take out clip located inside the jamb. In tandem applications, there will be two on each side.

Step 2:

Next, you'll need to remove the old balances. First, push the balance down and out from under the take out clips to disengage the balances. Your old balance has now been removed! Repeat these steps for the other side of the window. 

Step 3:

Now it's time to install the new balances. First, place the hook on the bottom of the balance into the hole on the bottom of the frame, then position the balance in place with the take out clip and push it down and under the take out clip to re-engage the balance. Repeat on the other side of the window. Now, take the sash and first push it into one side of the frame and then swing into place. Close the window and push in the take out clips.

Window Balance Hooked into Window Jamb

The hook on the bottom of the balance hooked into the hole in the frame of the window (shown above)

Last, install your sash stops, if applicable, at the top of the window to prevent over-extension and permanent damage to balances as shown here.


That's it! Your window should operate as good or better than new!

Check out our other post to learn more about common window problems and how to address them

Additional Help

How to measure block and tackle balances

How to determine top and bottom guides

Block and tackle balance stamps

Replacement block and tackle balances

Below you can watch a video of this process. As always, we're here to help so feel free to contact us if you have any questions. Don't forget to subscribe to our newsletter and YouTube channel for more helpful how-to guides and videos.

Updated on 04 Oct 2023