Good day everyone, this will be my first post so hello to all! I am the new owner of a triplex. It's actually a century home converted into Two 1 bedroom apartments and a bachelor unit in the attic. I am eager to install range hoods and vents for these units as well as one of the bathrooms is lacking a vent and fan as well. How would I go about locating an electrical supply for these range hoods and the bathroom fan? As well what is involved with punching holes in the cinder blocks to vent to the outside? I would like this to be my first DIY project and am willing to do any and all work myself. Regarding the electrical supply would it be better to bring in a certified electrician to at least rough out my work? All input is greatly appreciated.