An electrical module support assembly for use with a junction box disposed in a building structure at a structure surface, the assembly comprising: a mounting fastener; an electrical module having a mounting portion with a module fastener aperture disposed through the mounting portion; and a support bracket defining a longitudinal axis and a lateral axis disposed perpendicular to the longitudinal axis, the support bracket having a modular face, a junction box face opposite the modular face, and a bracket fastener aperture disposed through the support bracket, the support bracket being rotatably disposable between the mounting portion and the structure surface with the modular face disposed towards the electrical module, the support bracket extending beyond the mounting portion in directions respectively along the longitudinal and lateral axes away from the support bracket with the mounting fastener disposed through the module fastener aperture and the bracket fastener aperture.