I had used Heimer Engeineering services in the past to inspect homes before purchasing. I previously worked with an inspector named Victor. Victor was professional, courteous, through, and answered questions that were asked. Basically, I was satisfied with the quality of work. Today, an inspector named Frank Drost arrived to the property over 30 minutes late. Upon meeting him I brought my concerns to his attention. Frank stated that he would like to do a walk through of the building first then he will address my concerns. After Franks spent about an hour inspecting the building we met and he began reviewing his report. Frank report omited many of the issues present. When I brought several of them to his attention he stated "Well, I didn't think it was important". His tone was condencinding, as though he was annoyed by me asking a question. My response is that I am paying for a service. I am the customer and any question that I have concerning the inspection deserves an answer and should be taken seriously. Frank conducted himself in a disrespectful manner by raising his voice, and using sarcasim. This type of conduct is unprofessional. I am not his friend, or someone on the street. I am a customer who hired him to provide a service. Because, I did not want the situation to esculate I stepped outside and called his supervisor named Howard. I informed Howard of Frank's unprofessional behavior and my complaints about the inspection rendered. For example: After Frank claimed to complete the inspection. Several occassions I pointed out my concerns. Frank response was " Oh, I didn't notice that. Then he took notes" This lead me to believe that Frank inspection was not through and that he is incompntent.