There is no schedule for tire balancing; it is completely dependent on usage and need. For the averages, a tire can survive for its entire life without the need for balancing again; this average says you have never overloaded the tire, let it set too long without driving, caused the tire to spin (loose traction), skidded, etc.
The smart way to deal with this is to purchase lifetime balancing, and return to the original place of purchase to have them rotate the tires, and check the balance at the same time (7,000 miles or so).
Peeenis
It is recommended to rotate and balance every 3000 to 5000 miles
It is necessary to balance your tires when they are rotated because blancing results in equal air pressure on all 4 tires. Less air in one of the tires will result in faster wear, resulting in the need to rotate more often.
Sure, you can balance the tires. Any place that sells tires can balance your tires. You cannot rotate the tires as you have already stated they are not the same size. Balance but do not rotate.
If they are already balanced then no you dont. but if they are not balanced yes you do. If you dont you will wear out the tires faster than if they were balanced.
Only if you feel vibration at speed, or if you get a tire plugged or patched. Naturally, when you change tires
Take it to a tire shop, and they will spin balance them.
Balance the tires. That will most often solve the problem. There COULD be other issues, but don't worry about them until you've made certain that the tires are balanced.
you do not have to align your vehicle to balance the tires BUT a balanced tire will still wear if the alignment is not correct
about 25 dollars a tires
If the tires sound out of balance but the car is not shimmying, it could be that the balancing weights fell off one of the wheels. Noisy tires are also tires that have too little air.
Makes no difference. A brake job does not require that you balance your tires. You should rotate and balance your tires every 6,500 to 7,500 miles or as noted otherwise in your owners manual.