Window coil balance, spring coil replace? Help

Quick Learner from MA

May 6, 2020 1:17 pm

A few windows in the house have broken coil balances. They are tilt in vinyl-type windows with no name brand on them. I couldn't see a spring coil with the notch this one has, so perhaps I would need the whole part or just the coil? No markings to describe the weight of the spring. 2 are on each window; one on each side.

4 user uploaded images

6 Replies

Tom from SWISCO

May 8, 2020 1:57 pm

Hello! Your spring isn't made anymore, unfortunately. The good news is, you should be able to use our Series 152 as a substitute. Your pivot shoe would be a match for our 15-177. These two products are explicitly designed to work together, so I feel pretty confident this is the setup you want.

Quick Learner from MA

May 9, 2020 3:10 pm

Thank you!

Tom from SWISCO

May 14, 2020 11:24 am

If you only have one spring on each side of the sash, you could either go for two 8 pound springs (S152-8) for 16 pounds of support, which is a little under, or two 9 pound springs (S152-9) for 18 pounds of support, which is a little over. It's up to you which you want to go with.

Quick Learner from MA

May 14, 2020 11:38 am

The bottom window sash is 17lbs according to my bath scale, what weight springs should I use? Is there a %of weight I should use?

Thanks again!

Quick Learner from MA

May 14, 2020 12:34 pm

Thanks