Depending on how they ran the wire and the type of wire it may not require a professional but if you dont feel comfortable doing the work there is nothing wrong with hiring an electrician.

To verify if a ground wire was run, there are two things you can do:

1. Check existing receptacles

This means turning of a receptacles at the breaker, removing the cover and pulling the receptacles out of the box to look at the wire run. If it has a black/white and bare copper (or copper clad aluminum) then there is a ground wire in the box. If you dont see a bare copper wire or if the wire was cut short at the point the wire enters the box then an electrician is probably required.

2. Check the breaker box

To check your breaker box, flip the main breaker that runs service to your house. It should be the 50/100/200 amp breaker at the top that is not part of the column of smaller breakers. Then remove the cover around the breaker box to expose the wiring inside the box. All the wires from your house should run into this box and if you have ground wires they should be connected to the ground bus inside the breaker. Again you should see lots of black/white wires and bare copper wires that are ground wires. If they are all cut at the point the cables enter the box you will probably need to run new wire and that will require an electrician.