Interstate Interlock, where safety and service is our priority

Interstate Interlock

Why Choose Interstate Interlock?

  • 20 Years of experience
  • 24 hour on-call service
  • Direct interaction with the DMV and local courts
    We do all of the work to eliminate hassles with the DMV and the courts
  • Convenient service centers located throughout Central California and Northern California
  • We provide the best device in the industry since 1993
  • Flexible scheduling
    We provide mobile installations for you at home or work at no additional charge
  • All our service centers are company owned
  • We do not sub contract our services with stereo shops or secondary businesses

1-800-373-5625
DUI? We Can Help.
DUI? We Can Help.
Free mobile installation
within 10 mile radius
of a service center