Vintage window balances

Question

Hi, we have double hung wood windows in a 1950s ranch. No identifying marks that I can find. The balances seem to be just a plastic tube with a spring inside, screwed to the sash at the top and the bottom of the window itself. We would like to replace them with something better, if possible. What kind of modern balance can we use, and how can we determine the dimensions and models we need? There are a few different sizes of windows in the house, but they are all constructed this way.

Bonus question: if we want to open both the top and bottom windows for better air flow, how can we install screens for both ends? (These are not removable tilt out windows.) The sash has channels for upper and lower storm windows, but only one for a screen. Do you double them up somehow, or do you replace one of the storm windows with a screen in warm weather?

Thank you!

Paul · Accepted Answer

Thanks for reaching out to us. I believe you need our Series 500 non-tilt balance as well as the 17-012 which is sold separately. To determine the length, you will want to measure the outer tube and weigh the window sash on a scale to determine the proper color tip option.

Regarding the screens, you already have one screen on the inner track, so I'd recommend you take the middle glass insert out and take it to your nearest hardware store to see if they can make a screen to match it.