The cost of tire installation at Walmart is $12.00 per tire.
So you'll pay the tire price and then $12.00 per tire for the installation of the tire which includes tire mounting, balancing, new valve stems and rotation after every 7,500 miles.
The cost of Walmart Tire Installation of $12.00 per tire also includes lug re-torque after the first 50 miles which should be done for safety.
Whenever new tires are installed or you've changed a tire and wheel on a vehicle you should check the lug nuts on the tires because they can sometimes work loose.
I've had it happen to me so I keep a 4 way lug wrench in my cars trunks so that I can check the lug nuts often enough.
I have found a few of them loose.