Do yourself a favor and stay low volume. Take this advice from a high volume installer.
About 1 in 10 people in the world are crazy, literally. So every 10 systems you will have to deal with someone that you will never make happy.
You will have a target on your back because your the "big bad company" in every other installers eyes. Of course they assume and will tell potential customers that because of your size there is no way the quality is the same.
Overhead. The more you install means more permits, inspections, designs, walk through, BS warranty calls, etc. I have one LI that works for me and all he does is designs, permits, and inspections. It gets expensive.
4. Constantly training. Eventually a manager will steal, get too big for his pants, stop doing customer service, etc. Then you have to deal with the fallout.
Etc etc etc
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