Best advice get your electrical contractor license. Electricians have more consistent work and better pay. However it takes many hours as in years to get your electrical license whereas a fiber installer in most states requires no license. Some states it is just a matter of paying a fee and taking a test.
If you want to be in business for your self. You need a CPA, Banker, Good Commercial Insurance Agent and an Attorney. If you want more specific business plan information PM me and we can talk.
