I have a bathroom overhead fan and a wall light connected to the same wire at their switch. Is there any way separate the power so I can turn the light and fan on and off independently?

Sure - add a separate switch. You would change out the existing electrical box that has the one switch for a 2-gang box and intall 2 switches with a shared power supply. I suggest you post this question in the forum "Home & Garden - Electrical & Lighting" - you're bound to get more answers there.

I'm not sure it fits any code but...

I own a co-op apartment and the bathroom fan usually annoyed me if I was just in there while not taking a shower (it was too loud for me to hear the TV from the other room). The fan came on when the BR light was turned on.

What I did was seeing the power to the fan came from below the fan I just opened the wall, disconnected the cable (with the breaker OFF) and snaked it into an old work box, then added a short length of cable from the work box to the fan and pushed the box into place.

Then I added a new switch for the fan. This way, the fan would only turn on when I wanted it, just flick it on for my morning shower and off later when I no longer wanted it.

Your wiring will be more challanging then mine as my fan was wall mounted and I pout the new switch directly below it.

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Originally Posted by AbsntMinddPrfsr

I have a bathroom overhead fan and a wall light connected to the same wire at their switch. Is there any way separate the power so I can turn the light and fan on and off independently?

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A possible other solution would be to replace the single switch with a dual single switch-in-one unit, keep the light on one switch, and wire the fan to the other switch!

Yes you can do by using one more switch but before that check the wiring laid. If the wiring is done in such a way that one control switch and only two wiring going in to the fan and light point and parlleled or looped in one ckt. Then wiring need to be changed.