Except as provided in § 150.31, any person, firm, or corporation desiring to engage in the business of electrical construction or the installation of wiring and apparatus for electric lights, appliances, heating, or power in the city shall obtain a license therefor, the fee for which shall be as provided for in § 11.01 of the Fee Schedule found in Appendix 1 of this Code. The fee shall be paid to the City Secretary before such license shall become effective.