Balance Replacement for Sash

Thanks for posting! I don't believe you can use a channel balance to replace a coil balance. I've heard of some people using spiral balances, but even those turn into a bit of a project. We usually recommend sticking with what you have to be safe. 

I can say that neither a channel or spiral balance would last longer than a coil balance; a balance's longevity depends on its calibration. A balance properly calibrated to the weight of the sash can last anywhere from 5-10 years, depending on how often it's used. This is the case for any type.

If you really do want to go with a different kind of balance, let me know and we can try to determine what might be used on this window.

Sure, we offer a ton of different coil balances. I am confident we can get you exactly what you have now, or at least the most modern replacement option for it. Can you show me a clear photo of the pivot shoe? I cannot make it out in your original batch of pictures. Seeing it out of the window will be a huge help. Pivot shoes act as a sort of "key" that allow us to determine everything else you need for the balance setup.

Many thanks for writing in to us. Your old balance system has been replaced by the manufacturer with the 15-140 balance shoe, the 15-143 coil bushing, the 15-144 coil bushing cap and the 15-145 coil spring bushing. For a 21 lb sash you would use one Series 150-5 and one Series 150-6 on each side of the sash. We do also offer a more complete coil balance system that people like to use, the Series 140. For your 21 lb sash you would use an S140-11 on each side of the sash. Please review both options and see what you think is best.

Glad to be of help! Let us know if you have any questions about installing.

Sorry to hear you're having trouble! I know the cutout is smaller than this balance system, but you should still be able to install it. You just have to feed it in at an angle, bottom-first. You typically always want to install a coil balance system as a completed assembly, since you aren't able to attach the individual pieces once they're inside the jamb. 

If you still are not able to do it, you could make the cut out a little larger, but you don't want to make it too big.

That's fantastic news! I'm glad you got it in there, Bob. Thank you for the update and, of course, thank you so much for getting in touch with us so we could help you with this project. If you ever need anything else in the future, you know where to find us!

Ditto what Paul said! We're always here to help as best as we can, Bob. 

As a Patriots fan also named Bob, I'd just like to salute you, Bob, for this very witty comment about our team owner (also named Bob). 

In Bill We Trust (a big trade on draft day would be swell too though).