Alenco Balance Spring is Broken
Hey there, thanks for reaching out! I'm sorry to say that would not be able to replace the spring in the balance. There is a good amount of tension applied to these springs and it would need to be attached by machine. You'll need to replace the balances altogether.
There is a chance that we can supply you with a replacement channel balance for you window. However, to determine the correct replacement balances needed for your window, I'll need to see a photo of an undamaged balance removed from the window.
To properly identify them, I'll need to see a photo of any attachments that may be on the top or bottom of the balance. I'll also need to know the stamp from the metal channel of your balance.
If this is a tilt window, I'll need to see any attachments that could possibly be left behind in the window or that could possibly be attached to the bottom of the window. If there is a hook at the top of the balance, I'll need to see the space in the window channel where the hook connects.
If there are no balances in the window at all, I'll need to see an undamaged balance from a similar window and I'll need to know the height of the visible glass as well as the window weight.
Let me know if you have any questions.