Not sure if this was meant in response to my initial comment, I’m not exactly egotistical about it, I just know what I’m good at. Sorry if I came across that way.
Thanks guys for your responses.
@Derrick I was lead tech for 2 yrs at service master. Their products stink, I prefer others but I made it work. I worked for another local place before then, that’s how I got started with window cleaning.