Ignition Interlock in Frederick

Choose the most trusted ignition interlock provider in Frederick. Guardian is here to save you time and money.

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Ignition Interlock Locations in Frederick, Maryland

Guardian Interlock

289 Merrimac Court Prince Frederick, Md
Prince Frederick, MD 20678

(443) 906-2658

Open Today – 10am-5pm

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Guardian Interlock

5716 Industry Lane
Suite H2
Frederick, MD 21704

(443) 825-4593

Open Today – 9am-5pm

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4.5

Average Google Rating

1 million

Successful Device Installs

24/7

Customer Service

Ignition Interlock in Frederick

Why choose Guardian Interlock?

In Frederick, Maryland we have 24/7 customer service. Contact a California expert to answer any of your questions.

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  • Our technicians are helpful and  understanding
  • Our technicians will explain how the device works
  • Our technicians will ensure everything is working properly 
  • Our technicians will explain the next steps
  • You will be provided with a certificate of installation (often required to regain a driver’s license)