Scope of license authority; scope of provisions.

(1) All persons engaged in the home improvement business as defined herein shall be required to obtain a license under this act as well as any other licenses required by law.

(2) No mortgage broker’s license shall be required pursuant to chapter 494 of a person whose business is exclusively in home improvement contracts or related instruments.

(3) This act may not be construed to limit or restrict the power of a city or county to regulate the quality, performance, or character of work of contractors, including requiring submission to and approval by the city or county of plans and specifications for an installation before commencement of construction of the installation, inspection of work done, and regulation by a system of permits and inspections which are designed to secure compliance with, and aid in the enforcement of, applicable state and local building laws, or enforcement of other laws necessary for the protection of the public health and safety.

(4) Nothing in this section may be construed to authorize a city or county to enact ordinances or regulations relating to the qualifications necessary to engage in the home improvement business.