How To Fish Electrical Wire Through Exterior Wall?


push the bit through the insulation, using short jabs, at an upward angle, toward either back corner. if there is paper, foil or plastic on your side, just cut through it. when the bit hits the back corner, walk the bit into and up the corner by giving the drill short bursts (forward or reverse, whichever works better)


Strip the end of the sheathing, attach the wires to the fish tape, and tape them in place. Then, pull the cable through the wall plate and out the next wall box opening. Make sure that someone holds the opposite end of the cable securely while you fish it to the next location, to avoid pulling the cable into the wall where you can’t reach it.

Running Wires in Walls


How to fish electrical wires through existing walls. tricks to running wires without damage.

Frequently Asked Questions

What's the best way to put a fishing hook through a wall?

This is my favorite method: Put the wire through the eyelet or around the hook, then wrap it around your fishing tool. Tape them together with electrical tape, making sure to taper the wrapped section so it will slide through holes. Running cable inside ductwork, as convenient as it may be, is not allowed by code.

What kind of foam to use for fishing wire?

Injection foam in exterior walls is the easiest of the three foams to work with when fishing wiring through it. It’s also easier than working with fiberglass or glued-in cellulose. That’s because the material is delicate enough to allow you to push the fish tape through it.

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