An electrical contractor is a specialized tradesman responsible for installing, maintaining and repairing the electrical systems found in commercial, industrial, and residential buildings. They must have a good working knowledge of all aspects of electricity, including wiring, lighting, circuit breakers and transformers. In addition to having technical skills, they are also required to apply safety codes and regulations while on the job. Good communication and collaboration skills are also important in order to efficiently collaborate with colleagues and clients. The ultimate goal of an electrical contractor is to ensure that all electrical work is carried out correctly and safely, so that it can be used without posing any kind of danger or risk.