Ouch, I hear stuff like that all the time though. Fucking vultures. My partner and I have a window/door install company, and we have people buy their windows directly from the manufacturer per our measurements and then pay us for the install after it's done. We make more per window than any of those companies will ever pay installers, and the people that hire us save like 40% of what they would've paid those scammers. It's bananas, sometimes we have to convince people that we're not scammers because they don't understand how we can be that much lower than "the industry standard".