The electric wiring of buildings, machines, and related equipment is the specialization of an electrician.  Electricians are very much in demand during electrical emergencies or when people have electrical problems since these electrical wires or equipment are highly sensitive and potentially dangerous.  Electricians can work in residential or private electrician jobs or commercial jobs.  Residential electricians are usually involved in putting electrical wiring in a home, and if there are electrical problems, he investigates and repairs them.  A commercial electrician's work may involve fitting building for electrical wiring, doing electrical work en masse for corporations and working aboard planes or ships.  An electrician can do many different kinds of electrical job, but there are also those who choose to specialize in some areas of electrical management.  For example, some electricians do installations and repairs of electrical infrastructure like power lines and generators.  Some electricians choose to specialize in electrical wiring of ships, airplanes, automobile, and others.  Since more and more businesses, homes, and day to day activities rely on electricity, electricians are a vital part of our modern day workforce.

There are two most common types of electrician at and these are the residential and the commercial electrician.  Specializing in a certain areas of electrical management is chosen by some electricians.  However, there are many that are trained to deal with different types of jobs in either commercial or residential areas.

Before a residential electrician can work on residential assignments, they must receive training and a license.  Residential electricians are trained to do many different types of work.  From a simple repair of an outlet to a complete rewiring of the entire house, are what residential electricians can do.  Installations, upgrades, and repairs are the three categories of what residential electricians can do. 

Electricians are always doing upgrading work.  In upgrading; the electrical infrastructure is changed so that it can accommodate the needs of the homeowner.  When there is upgrade, new outlets are installed, or wiring high voltage outlets which allows home owners to relocate large appliances, or running wire behind walls for the installation.

A residential electrician can also repair electrical problems, as the third main aspect of a residential electrician's job.   There are some electricians who work primarily in repairs.  Whether an electrician focuses on residential electrical repairs or not, they have at least the basic knowledge of troubleshooting electrical problems.  Professional residential electricians can repair outlets that are not working, electronic equipment that are not working, and  also repair faulty wiring.  Residential electricians need to respond quickly so that the home owner will not experience inconvenience, and he also assesses possible dangerous situations.

There are some residential electricians at who choose to focus on installation needs of new homes.