I had my brakes repaired now they squeak when I'm driving.

Hello, have the folks who repaired your brakes inspect them. If brake rotors were not properly refinished at the time of pad replacement, you will have noise. If brake rotors have hot spots, you could have noise. If the brakes are moving at all in the caliper bracket, you'll get noise. If the backing plate is touching for any reason, there will be noise. If the brake pad material is of a certain make up, they can make noise.