Coil springs

Hello, thank you for posting,

We should be able to assist with new coil springs, but to further review, we will need to see the pivot shoe in the window channel that the coils attach to. It may have fallen to the bottom of the channel. Being a Certainteed window, I believe you may have an older style of the 15-192 pivot shoe, but I need to confirm before moving forward with the correct series to recommend. 

We will also need to know the weight of the sash. The window sash will need to be placed on a bathroom scale. Thank you! 

Thank you! 

Your pivot shoe resembles the 15-192 that is compatible with the Series 170 coil springs. For a 17 pound window, you can use (1) S170-409 coil on each side of the window to give you 18 pounds of support. As long as the weight range is within a pound, you should be fine! 

Also review the compatible covers and balance drum on the page if needed. If you need to replace the pivot shoe as well, please note that we have had some customers report that they had to shave down the aligners on the 15-192 shoe to fit in the window channel correctly. 

Let me know if you have any additional questions! 

detail of 15-192