Guardian Interlock provides ignition interlock systems (also known as "blow and go" or "car breathalzyer" for people who need or want them after a DUI/DWI arrest. We provide high quality services and devices to make the process of installing and using an interlock as easy as possible.
Guardian Interlock (guardianinterlock.com) has 813 customer reviews on Five Star Index, with an average rating of 4.0 out of 5.
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Showing 541 reviews with 5 stars · Clear filters
BROCK W.
Very easy and helpful
Response from Guardian InterlockMar 16, 2026
We truly appreciate you highlighting Arthur. Our team takes pride in providing excellent support, and it’s great to know their efforts stood out to you.
Bradley S.
Updated my review. There's was and miscommunication in the beginning. Things did end up getting squared away. I'm grateful for Guardian Interlock. The agents and workers are mindful and willingness to listen and correct. So that's why I upgraded my review. They fixed the problem. Thanks Guardian. Will recommend and have recommended.
Response from Guardian InterlockMar 11, 2026
We’re sorry to hear about your experience at your appointment. We’ve escalated this to management for review, and a Guardian team member will be in touch to assist you directly.
STEVEN M.
Customer service is impeccable, friendly and courteous Customer service representative.
Response from Guardian InterlockFeb 26, 2026
We’re so glad you had great experiences with Soc and Jesse. At Guardian, we know that every interaction matters, and it’s wonderful to hear that their support made a difference for you.
AMANDA E.
Great service
Response from Guardian InterlockFeb 25, 2026
It’s great to hear that Arthur was able to assist you so well. Our team is dedicated to supporting our customers every step of the way, and your recognition reinforces the effort they put in every day.
William C.
The costumer service is always really kind and helpful, you get answers quickly to any questions you might have.
Response from Guardian InterlockFeb 16, 2026
We really appreciate you taking the time to highlight Jair. Providing excellent customer support is a top priority, and it’s wonderful to know that they made a positive difference in your experience.
JOAQUIN ROBLES C.
Fue muy amable y explica todo muy bien
Response from Guardian InterlockFeb 10, 2026
Nos alegra mucho saber que Eddie nos brindó un apoyo tan excelente. Reconocer el esfuerzo de los miembros de nuestro equipo es una de las mejores cosas que hacemos, y sin duda compartiremos sus comentarios con ellos.
CHARLIE J.
I had a great experience in setting up an exchange on my interlock.
Response from Guardian InterlockFeb 10, 2026
Thank you for sharing such kind words about Jose. Exceptional service is what we strive for every day, and knowing that your experience reflected that means a lot to us.
YVONNE F.
Ur customers service was great
Response from Guardian InterlockFeb 6, 2026
We truly appreciate you highlighting Jair. Our team takes pride in providing excellent support, and it’s great to know their efforts stood out to you.