Electric upgrading

We had an electrician in when we first moved in to add outlets, install some lights, and replace the wiring and meter outside. We had called around a few places and finally received a recommendation for JBI Electrical Contractors. They are in East Meadow. They were great, very professional and timely. We discussed upgrading when they were here and they told us they could, but that we didn't need it at this time. I thought that was great, that he wasn't just trying to sell me something I didn't need. He told us if we expland or install something like central air then we should upgrade. But now we still have 2 empty breakers.