Great customer service
Great customer service. Tawana was very knowledgeable
By Dee
Sunday, November 8, 2026 · Customer reviews of US businesses
The Fair Hearing score
Great
813 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
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 The Fair Hearing, with an average rating of 4.0 out of 5.
Showing 541 reviews with 5 stars · Clear filters
Great customer service. Tawana was very knowledgeable
By Dee
Tawana was very helpful. Thank you.
By Travis
Very knowledgeable gave us all information we needed quickly very personable and patient with all our questions.
By Steven
Asia did fantastic :) she was very informative and got me a great deal :) made my license a reality :) great care and concern ;)
By Brandon
Cynthia was great!!!!! she helped me get set to get the interlock installed on my vehicle. Very informative about what is needed. Thank you Cynthia
By Cynthia
The guy who helped me on the phone, Brandon, went above and beyond with helping me. Hopefully the rest of my experience with them is just as smooth.
By Krysta
Julia was very pleasant and answered all my questions.
By Linda
Excellent customer service! The woman on the phone was very helpful, polite, and informative. She made my day by being so professional. Thank you Tawanda!
By Dalton L.