I have used Mastertech for a few years now and they had always done a nice job. I met the owner when he was just starting out and only had one truck and he seemed like a very nice guy. Unfortunately, I recently had an issue and tried to contact the company but they didn't seem to care. What happened was one day I was in the shower and heard a knock on the door. I couldn't get out of the shower in time to answer the door but when I got out I noticed someone in my backyard. It was the tech spraying on my property. The problem is that the service wasn't scheduled and I did not give them permission to go on my property in the back yard. I have a large American Bulldog and if he had gotten out it could have been really bad news for the tech. I contacted Mastertech to let them know what happened and to make sure I wouldn't be billed for the service. I never received a response. I sent three separate emails and didn't get a response at all. This is very upsetting to me and it makes me worried that my dog could've attacked the tech as he is trained to protect my family and property. I hate to write a negative review but I think people should know about this. For all I know, the guy could have been casing my home to rob it. Things like that happen all the time. The fact that I gave them the opportunity to resolve my concerns and they didn't do it also bothers me a lot. I would not recommend Mastertech for anyone that values good customer service.