His original bid was closer to $5k. He price matched another contractor and brought it down to $4200. My house is already pre-wired for AC, but lets assume there’s $500 in misc. materials; if his cost is $2900 for the units + $500 misc. materials, that leaves $800 for labor. He charges $100/hr and he said he can have it done in 8 hours, so $800 in labor makes total sense as to why he can go down that low. This price does not include permit. That will be extra as is any load test, etc. that will be required by this program.
I’m aware of the pvc pipes that are needed for the 95% unit.