Except as provided in Section 7026.13, the installation of a fire protection system, excluding an electrical alarm system, shall be performed only by either of the following:
(a) A contractor holding a fire protection contractor classification, as defined in the regulations of the board.
(b) An owner-builder of an owner-occupied, single-family dwelling, if not more than two single-family dwellings on the same parcel are constructed within one year, plans are submitted to, and approved by, the city, county, or city and county authority, and the city, county, or city and county authority inspects and approves the installation.