Most people will have a need for an electrical contractor's services at one point or another. If you're looking for quick and cheap work, be extra careful you do not find a local electrical contractor that likes to do things somewhat too lax. Heeding the following advice can help keep you from becoming the victim of a disreputable electrical contractor.
If the quality of work is good, then go ahead and release the final payment. Do the inspection of the work yourself or you could hire someone else do the inspection for you. Only make the final payment after the work is complete and you are fully satisfied with the work done. Minimize or avoid altogether making cash transactions so you could keep proper documentation of all financial transactions for tax and other purposes.