Hey Dr Chipster, Good Idea about the company name on the side of your van. People want to know that they are talking to someone with an actual business, not some fly by nighter. Especially if you offer a lifetime guarantee!!! A lifetime guarantee is only as good for as long as the business is alive!!! (and the Owner!!!
) Put yourself in the customers shoes. Would you call the number on the side of an unmarked van to have your windshield repaired????? Also, it's good you can answer your phone during your workday. Good Luck!