Unknown brand window is very hard to open

Question

Trying to find replacement parts for these windows. I do not see any identification or numbers on the windows. The windows are very hard to open, so I think that is the cause or these pieces breaking. Any advice as to repairing and replacement parts would be very helpful.
Thanks

Tom · Accepted Answer

If the window is hard to open, then the culprit is likely the balance. Looking at how your pivot bar has bent and how your frame has been damaged, it seems like you've really had to force this thing.

I am confident you have a tilt window spiral balance, which makes things easy since there are only two options. Remove the balance and measure the diameter of the outer tube. If it's 3/8", I recommend our Series 900 spiral balance. If it's 5/8" instead, I recommend our Series 600. The video below may also be helpful.

If you need the pivot bar, see our 26-297. I'm afraid we can't help with that broken frame, though. I don't think there's anything you can do to repair that. You may need an all new sash. If you don't know who made the window, maybe contact a local professional who might be familiar with homes in your area. They may know who made the sash.