I needed panel modifications, 60ft of 4 guage wire, dry wall work in my finished basement and garage, and ended up north of $2K. The cost can vary wildly based on how close your panel is to the charger, if it's adequate (~200 amp panel), if there is a need to transit a finished basement or long distances, and the region where you live. My install did take two guys a full day to complete, but they did a quality job. The state of VA also offers a tax rebate for the installation, so I'd check your state for any benefits.