spiral balances different lengths

Quick Learner from Boston
Hi - On my windows, I believe that some of the spiral balances were replaced previously. The upper balance is 27" and the lower one is 29". The windows themselves are each 30". Is this normal/common?
4 Replies
Paul
Paul from SWISCO
SWISCO
Expert
Yes, normally balances in the upper sash are 2" shorter. It's best to take measurement of all balances that need replacement anyway, just in case.
Quick Learner from Paola kansas
Are the upper balance s installed the same as lower ones?
Paul
Paul from SWISCO
SWISCO
Expert
Yes, in most cases the installation is the same.
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