Ignition Interlock in Houston

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

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Ignition Interlock Locations in Houston, Texas

Guardian Interlock

1146 Sheffield Unit C
Houston, TX 77015

(800) 499-0994

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Guardian Interlock

11436 S Post Oak Road
Houston, TX 77035

(800) 499-0994

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Guardian Interlock

11814 Champion Forest Drive
Houston, TX 77066

(800) 499-0994

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Guardian Interlock

11700 Tx-29
Suite D
Houston, TX 77086

(713) 230-8970

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Guardian Interlock

11101 Wallisville Road
Houston, TX 77013

(800) 499-0994

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Guardian Interlock

13940 Bammel N. Houston 233
Houston, TX 77066

(800) 499-0994

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Guardian Interlock

5611 Dashwood Dr. Suite A
Houston, TX 77081

(800) 499-0994

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Guardian Interlock

1146 Sheffield Blvd
Unit C
Houston, TX 77015

(713) 234-5263

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Guardian Interlock

110 Cypress Creek Pkwy
Houston, TX 77090

(713) 814-9946

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4.5

Average Google Rating

1 million

Successful Device Installs

24/7

Customer Service

Ignition Interlock in Houston

Why choose Guardian Interlock?

In Houston, Texas 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)