Old Window Springs / Replacements Needed

A home owner from Columbus, Ohio says:

I'm hoping to get a quote for some replacement window springs.

Unfortunately, I'm not seeing any markings, names or numbers on the hardware. I don't even know the make of the windows(original/1977)

I've added some notes to the attached picture; hoping it provides enough information for you.

Thank You,
User submitted image of their window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Hello, Darrin. We can replace this balance as a custom order. Before we begin, can you tell me how many you need?
A handy person from Columbus, Ohio says:
I started to take an inventory on my window balances tonight and noticed the springs are either red or green. However, there appears to be different lengths. Is that just different tube lengths or are there different spring lengths as well?
Profile picture of Tom
Tom from SWISCO responded:
Length is important, yes. If you have a variety of balances that differ from what you showed us in your initial post, we will need detailed information for each type.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)