Yes and no. You could do it and watch a couple of videos, right? Get your buddies, wear gloves, safety glasses, and maybe a little hat because you’re moving glass. You have to have an impact drill gun and some silicone, as well. That has to be a commercial-grade 600 silicone piece. You have to get some installation foam with a low low-expansion fund. You can’t even buy that at Home Depot. So some things will probably take you a while. Can you do it? Possibly. Will you get a leak? Maybe. Is it going to take you all day to do one window? Oh yeah. Probably take you a month to do your whole house. And if you mismeasure, you have to start the process over again and most likely begin new construction. It’s going to cost you more to do it yourself than if you hire a professional installer.