SWISCO - The Replacement Hardware Authority

What is this Alenco Window Balance?

A home owner from Lancaster CA says:
My windows are made by Alenco, and I'm assuming they were the originals in this home Lancaster California built in 1989. They are worn out and need to be replaced. I'm attaching photos of one of the balances. And here are the measurements:

length from plastic tip to tip = 29" (metal only is 28" long)
The backside measures 1/2" wide
The side measures about 5/8" deep

Is this enough info to identify the part, or do you need more?
User submitted photos of a window balance.
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Tom from SWISCO responded:
Thanks for posting. Before I can confirm what Series channel balance you have, I'll have to figure out what your bottom shoe is. Please look at the measurements for our 15-001 and 15-002 bottom shoes and note their depths. As you can see, they are 1-1/8" deep and 1" deep, respectively. Which measurement more closely resembles your own shoe?
A home owner from Lancaster says:
In the photo I've posted, which one shows the bottom shoe? The one on the right or the one on the left?
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Tom from SWISCO responded:
The one on the right appears to be your bottom shoe.
A home owner from Lancaster CA says:
It would be difficult for me to remove the balance again to look at the shoe. If I can not tell you what my shoe bottom is, can I purchase both the 15-001 and 15-002 series and return the one that does not fit? Alternately, could I order just one series, and perhaps also order just the shoe bottom for the other series, and swap them out myself if needed?

Otherwise, I would have to pay a handyman to come to my home just to remove the balance so I could measure it before ordering. Let me know what your best suggestion is for my situation. Thanks.
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Tom from SWISCO responded:
You can definitely buy the shoes separately and swap them out, if you feel that's best. Take a look at the video below to see how you can replace the shoes on a balance.
However, it's not difficult removing these balances from the window. You shouldn't need a handy man to do it. Check out this other video which details the best way of replacing these balances.
A home owner from Lancaster says:
They are 1 1/8" deep. I need to replace both balances for 3 windows. I'm assuming I need to order 6 p[arts. Can you point me to the correct balance now?
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Tom from SWISCO responded:
If you have the deeper 15-001 shoes, then you're probably looking at our Series 390 channel balance. Take a look and see if you agree.
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