Welcome to B.E.S.T Interlocks of California

Highly skilled, certified IID installers guaranteed.

Highly skilled, certified IID installers guaranteed.

Let us take care of all your IID needs.

Let us take care of all your IID needs.

We can check with the DMV, set up your installation, and even refer you to an SR-22 insurance provider.

5-star Average

Across the entire state of California

Simplify your IID experience