877-862-9099
PROVIDING QUALITY SERVICE AND INTERLOCK DEVICES SINCE 2004
At Block our main concern is to provide quality equipment and prompt, courteous customer service.
Block Communications is family owned and operated.
Interlock devices can be installed in any and all vehicles. We have done installations in vehicles that date from 1932 to 2017. All manufacturers including but not limited to Porsche, Jag, BMW, Audi, Chevy, Ford, GMC, Lexus, Chrysler, Dodge, Jeep, Mercedes, and more......
The Draeger Interlock XT has the easiest test in the Interlock market.
One company, one focus.  Ignition Interlocks  No sub-contractors, No worries. 
Block Communications is Draeger exclusive service provider for the state of Delaware
FAQ
  Emergency technician available 24/7 Call us today and see how a personal approach can make the difference.