I had a sheet rock installer come and take a look and give an estimate for the work. He said I have wires coming out of the boxes and existing switches will make it hard for him to install the sheet rock. I told them my plan is to mount the appropriate depth mud rings on each box, then tuck the wires or switch into the box, the cover the opening with masking tape. He said this would not work, as his standard procedure is to have the box completely open with no mud ring. He measures the height of the box from the floor, then write it on the floor and strike a mark. When he installs the sheet rock he will then mark where the center is, insert a "rotozip" into it, then cut across until he meets the inside of the metal box, then he zips around the inside of the box to do the cutout. I said this will probably end up tearing and cutting my wires inside, he said this is how it's done and "should be OK, you can always repair your wires later"... I don't know if this should be in electrical or wall/ceiling section. But wouldn't most people have wires in the boxes come sheet rock time?

My doorbell button remained stuck depressed until the transformer failed. My house is 6 years old and the electrician mounted the 24v doorbell transformer directley to the exterior of the circuit breaker panel. The old transformer has 2 wires - one black and one white. The white is connected to the ground bar and the black to the breaker switch. Now the only transformers I could find had three wires - 2 black and one green. How do I connect a 3 wire transformer to my circuit breaker? Do both black wires go to the breaker switch and the green to the ground bar?