Heavy lifting window

Question

I have a heavy lifting window and saw some parts are broken.

The first photo shows the part where the window itself sits and looks kind of bad.

The 2nd one, shows like a little arm that is missing from one side of the window. The one it has it looks like metal not plastic.

Any advice?

Thank you

User submitted photos of a window balance.

Paul · Accepted Answer

Your pivot shoe looks like our 15-129 and the tilt bar looks like our 26-021. You say you have a heavy window, though. Is it hard opening and closing the sash? If so, you might need a new window balance. I think you have something like our Series 770 but check it out and see what you think.