The best way to hire any contractor, electrical, general contractor, etc, is by a referral from someone you trust.  But when a referral is not available, then search the internet.  You need to search using specific keywords to be sure to find someone that meets your needs and is in the local area.  An example is Electrical Contractor Dallas TX.

Do not hire a handyman to do electrical work.  There are many people out there that have experience in a lot of things, including electrical work, but properly licensed electricians have passed rigorous schooling and tests to become licensed.  They are also required to continue their education to maintain their license, which includes staying updated on the current codes.

Do not hire on rates alone.  When it comes to electricians, the right person to hire needs to be  properly licensed and insured.