A service drop is an electrical line from overhead that runs from a utility pole to the building. The point where the connection is made between the line coming in and the house is the service drop. It is essentially where the service drops into the customer’s home. The wires in the service drop are usually fed into a waterproof weather-head that protects the wiring from the elements. Once it reaches this weather-head the wiring is fed through conduit directly down to the meter for the services. The service drops used are different depending on the area of the services and the country that they are in. Some have the service drop run to the side of the building while others run the cables to the roof where it meets up with the service drop.
Building a new home can require that you arrange a service drop with the utility company. The utility company will need to fit the building with the service drop and make sure that it is tied in with the electrical system and panels that are in the building. The utility company will also need to install a new meter to keep track of the usage so that you can be properly billed. If you have a home with established utilities, but are having trouble with the electricity the utility company may need to replace the service drop on the building. This is something that should be handled by the utility company.