These windows were installed about 25 years ago. One of them does not stay up. I realized there is a spring coil on either side of the track and they are both broken. How can I identify the parts I need and order them? I am not very good with handyman's work. But, I can ask a friend to help me.
The only thing I learned from the contractor who installed them 25 years ago is that the brand is CertainTeed and the springs look like a steel tape measure (I told you I was not good at these things!!)
Thank you for your help,
Cemal