I have no Idea if this is even your product.

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Handy Person from Apex NC

Mar 17, 2024 1:46 pm

Your balance springs are the closest thing I have seen on the web to the broken ones I need to repair.

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4 Replies

Bob from SWISCO

Mar 17, 2024 5:26 pm

Thanks for posting. We carry replacement parts that are used by many different window manufacturers. From what I can see of the pivot shoe in your photo, I do believe we'll be able to help; but I'd like to see the shoe and whatever balance assembly it attaches to removed from the window for clear identification. We should be able to narrow down what you are working with from there. I believe this is probably a pivot shoe attached to coil balances (coiled springs that regulate the window's movement); if so, the video below should help with removal. Let me know if you have any questions.

Handy Person from Apex NC

Mar 18, 2024 3:09 pm

Well oddly enough that is the only window in this house that doesn't match the rest of them and the pivot shown is the only part that remains, everything seems to be gone. I agree that it is most likely a coil spring assembly. I can try to take more specific photos if that would help

Tom from SWISCO

Mar 19, 2024 9:55 am

Hey there! Bob's not here today but I can do my best to assist you.

Looking at your photo, your pivot shoe appears to be a match for our 15-199. You should check to verify, though. Pivot shoes kind of act as a "key" that will let you determine every other component you need for the balance assembly. To put it another way, once you figure out the pivot shoe, you have a very narrow scope of what else will be compatible.

The bad news is that if you do have the 15-199, then you have a choice between two different spring sizes. The 15-199 is designed to work with both the 3/8" thick Series 165 and the 1/2" thick Series 160. Which size your window needs is not something that will be possible to answer without an old spring on hand to measure.

So at this stage you have a choice: you either go with the 3/8" spring or the 1/2" spring. Each has their own different plastic cover that is meant to go with their respective sizes. They are also individually weighted, with the rating of each spring combining to cover the full weight of the sash. (as an example, two 5 pound springs carry a 10 pound sash; two 8 pound springs carry a 16 pound sash; and so on)

I'm sorry to say I can't help you pick one of these two options unless you have an old spring as a reference, though. If you really have nothing else to use for comparison, then you'll have to use your best judgement. There's no trick or secret I know of that will let you garner the proper spring size without having an old one on hand to measure. Right now it's basically going to be a coin flip for you.