Tire Installation involves removal of the old tires from the rims, mounting the new tires on the rims (with a new valve stem), and putting the wheels back on your car
Tire rotation is the practice of moving the wheels and tires of a car from one position to another, to ensure even tire wear. Even tire wear is desirable to extend the useful life of a set of tires. The weight on the front and rear axles differs which causes uneven wear.
Taking an already installed set of tires and replacing them with the existing ones on the car.
Wheel balancing is the process of balancing the weight of a tire and wheel assembly so that it travels evenly at high speeds. Balancing requires putting a mounted wheel and tire on a balancer, which centers the wheel and spins it to determine where the weights should go.
Tire repair is plugging a hole in a tire that is leaking air.