I have double hung windows that use a coil spring on each side to assist
the window in its slide. The plastic clips that hold the end of the springs
in tension have all broken, and the springs have retracted up about 6
inches inside the window frames.

Does anyone have a clever way of reaching up and grabbing those springs? I
tried threading in a lag bolt, but it would not hold long enough to pull
the spring down. Ditto for a mechanic's grab tool.

Any ideas would be much appreciated! Thanks.