Excellent service by Mike Musk
Very pleasant and helpful. Thanks!
By Paul
Sunday, November 8, 2026 · Customer reviews of US businesses
The Fair Hearing score
Great
813 reviews
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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.
813 approved reviews, newest moderated first
Very pleasant and helpful. Thanks!
By Paul
Quick to reply to my inquiry and had me set up with an appointment shortly after. Very informative and helpful.
By Denise
felicia helped me. she did a great job explaining everything and she was kind and understanding
By Jason
made me an appointment and answered all questions.
By takb
Upon making initial call to guardian for install of interlock system the experience was pleasant. Representative Sarah was amazing and very helpful. Glad we chose Guardian for this service.
By Zygnumt
I arrived on time and Steve was able to help me with the install. He was very nice, polite and knowledgeable about the product, installing the piece of equipment and training me on how to use it. Guardian Interlock is a top company that offers great customer service. This is how customers should be treated.
By Wesley P.
The representative on the phone answered all of my questions and was very nice about everything.
By Alex
Sherry is very helpful........ I think she should get a raise!
By Kimberly