My wife and I bought this house in June. We had some electrical work done, some of which involved relocating where the lines came to the house. The work that was done is great except for one thing. The cold has been causing a hum in the transformer on the pole across the road which vibrates along the wires and into the pipe that holds them. It is louder than the heater, louder sometimes than the alarm radio even and it keeps us up late and wakes us in the middle of the night. Is there something I can do without calling the electrician back to mute this noise? Some insulation I can fill the pipe with or foam I can put around where it is mounted?