Permit questions for a Concord address go to the city's Permit Center, and its page points you to a way to see which permits a project needs before you ask for bids. We check with them before we schedule, and if your floor work needs a permit, we take care of the application and set the start date around it, so that's usually what moves the calendar before we're on site. While you're comparing contractors, you can ask for a contractor license from the state licensing board and a Concord business license.
The price turns mostly on what shape the slab is in, the system you pick and the size of the space, and the schedule turns on that same prep, the coating's cure time and any permit. Your written estimate gives you the figure for your floor and the reasons behind it. We do the same work in Walnut Creek and the other cities around Concord, and if yours isn't listed, just ask.