Depending on where you live there will be at least one primary mobile dent removal company. However, many of them may not have a website present or any noticeable way to contact them. They are often tied to local body shops and dealership groups. However, contacting a body shop or an automotive dealership for a Paintless Dent Repair technician should be a last resort. Primarily, because those entities will charge you significantly more than if you were dealing directly with a technician. If they are charging you far less than other companies' quotes, then it might be because the technician is new, or doesn’t have very much experience with such repairs.
Its never good to essentially write a blank check to someone that someone knows, to do the repairs. In these cases, you are leaving your vehicle, while the technician struggles with your dent alone.
You want to be there for the struggle for a number of reasons. It is often in your benefit monetarily and potentially in your worst fears otherwise. That is, if a technician is in a repair and they find a loophole to the problem, that will save them time, it could potentially save you money. On the flip side, if they run into a significant problem that requires access to be created or the entire car door to come off, you might want to be a part of that decision.