Spiral balance and shoe?

You have the old discontinued C-Alwintite window. The balance isn't made anymore, but I believe you can use our S500-23 spiral balance and 16-012 bracket to substitute it. I would also recommend a charging tool like our 75-005 to make installation easier.

Your sashes aren't made to come out unless you dismantle the master frame. This can be a time consuming job, but we have a process we like to use.

With someone helping you, you will need to drop the new balance in from the top of the sash, screw it in at the top, then let the spiral drop down. You will then raise the sash and, while someone holds the sash in the open position, spin the spiral up to the bottom of the sash. Finally, with our75-005 tool, give the balance about three turns to charge it and lock it to the end into the sash clip.

Let me know if you have any more questions.