This is my two cents: We installed at the same time because we didn't want to lose the summer. You can't even get permits until you close. If you don't care that it isn't done right away then you can do it after. That said, I would still do it with T&D. They did a great job and it is seamless with the house. BTW: Once you are after market with any company that does business with VT you are low man totem pole. They defer to their biggest customer
