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
Thanks for the generosity
By MICHAEL H.
Response from Guardian Interlock· Apr 27, 2026
We’re thrilled to hear that Arthur provided such great support! Recognizing our team members for their hard work is one of the best parts of what we do, and your feedback will absolutely be shared with them.
I love Guardian Interlock was recommended by a friend that had a previous DUI rates are affordable and interlock device easy to use starts up fast, informs you about upcoming appointments, customer service is quick & fast glad I chose these guys.
By Christopher S.
Response from Guardian Interlock· Apr 24, 2026
Thank you for sharing such kind words about Will's service, our device, and the program overall. Exceptional service is what we strive for every day, and knowing that your experience reflected that means a lot to us.
Fast and spent time with me to use the interlock
By JULIE D.
Response from Guardian Interlock· Apr 20, 2026
We truly appreciate your kind words about the Lakewood, CO Guardian location. Our technicians and partners work hard to support our customers, and we will make sure your feedback is passed along to the local team!
Friendly staff and they installed it in less time than they quoted
By NICOLE W.
Response from Guardian Interlock· Apr 7, 2026
We’re so glad you had a great experience with Solina and our Denver, CO shop. At Guardian, we know that every interaction matters, and it’s wonderful to hear that their support made a difference for you.
The representative was really kind and understanding. He took his time and answered all my questions.
By AMANDA P.
Response from Guardian Interlock· Mar 27, 2026
It’s great to hear that Cristian 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.
My customer service was great really helpful and polite I was confused at first asking questions and he answered every one of them and made sure I understood everything and he even explained the process step by step what to expect the day of the installation for my device
By RICARDO GOMEZ J.
Response from Guardian Interlock· Mar 23, 2026
We really appreciate you taking the time to highlight Arthur. Providing excellent customer support is a top priority, and it’s wonderful to know that they made a positive difference in your experience.
Made it easy
By BRYCN G.
Response from Guardian Interlock· Mar 23, 2026
We’re thrilled to hear that Selene provided such great support! Recognizing our team members for their hard work is one of the best parts of what we do, and your feedback will absolutely be shared with them.
She went above and beyond helping me with a complex situation, excellent service.
By adam E.
Response from Guardian Interlock· Mar 20, 2026
Thank you for sharing such kind words about Marilyn. Exceptional service is what we strive for every day, and knowing that your experience reflected that means a lot to us.
