When it comes to removing and remediating mold it’s always best to hire a professional mold inspector and sometimes a best to hire a remediation service.
If the mold in your home is not toxic and the area of mold growth is small (less than 10 square feet, or the equivalent of roughly a 3 by 3 foot patch) then you can most likely perform the mold removal yourself.
If you are uncertain of the extent of the damage a mold inspection is a good place to start. In most cases a mold inspector can identify and quantify the the damage giving the homeowner the information necessary to decide if its a task that they want to take on. If it is a small DIY project some inspectors will also give recommendations, providing more direction on the methodology etc that should be used. Dont be afraid to call a reputable remediation contractor with questions that they be able to help with.