Fishing sub-panel wire from attic to basement
I live in a condo building that was built in the 1920s.
I'm on the 3rd floor (top floor).
I'm upgrading my electrical situation. I've pulled a permit and have a good electrician. My electrician's assistance is amazing!
Today we managed to use the space around plumbing vent stack pipe to fish the thick sub-panel cable from the attic to the basement.
The advantage of the vent stack is that it runs from the basement to roof.
However, 4 inches above the basement, the cable got stuck. The space around the vent stack pipe is not even. Part of it is narrow, part of it is wide. As luck would have it, the cable landed on the narrow part. I can actually touch the beginning of the fishing snake but cannot grab enough of the cable to yank it down. So close yet so far!
My question: Does anyone know of a tool that I can use in the crevice to grab the cable, move it the wider section and pull it down?
Or should I try to use a sawing tool and saw off the 2 by 4 piece of wood that seems to be in the way? My only concern with this is that I do not want to accidentally cut another electrical cable or a water pipe. Another neighbor on the 3rd floor managed to use this same space to run her sub-panel cable from the basement to her condo. So I know that this is a good chase to use.
I've included a photo of the crevice. If you look carefully, you can see part of the cable that comes down from the attic.