Window won't stay up. Plastic piece stuck and other piece broke.

Question

My window won't stay up and I think I need to replace these small plastic parts and the box thing that they go into. One of the small plastic pieces broke and left part of it in the box and won't come out. The other box has a plastic piece that didn't break but is still stuck in there.

Both also have a plastic piece that doesn't get stuck.

I have no idea how windows get put together and can't find who installed them. So I thought I'd buy 2 new boxes and new plastic pieces to fix it.

Emily · Accepted Answer

Hi there!

It looks like you have an old Simonton coil balance. We don't carry this exact system but you can replace it with our 15-259 pivot shoe and Series 159 coil springs. Take a look at the video below. This will walk you through the entire replacement process and the other parts you'll need for this repair.

There should be a number stamped on the original coil that indicates the strength option. If not, you'll need to remove and weigh your window sash. Then, you'll divide the weight by the number of coils on both sides of the window to determine the correct strength option. If you're still unsure, give me the exact sash weight and I can work out what you need from there.