Sunday, November 8, 2026 · Customer reviews of US businesses
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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
Hassle free service with no judgement. Christopher Holiman answered all of my questions and got me set up and ready to go with no hassles. I only wish the install location provided the same excellent customer service that Chris did!
By Rebecca
I had the most wonderful experience with Walter. He has an outstanding customer Service. He provided all the information that I request plus some. What a delightful employee Guardian Interlock have with Walter LaSoo. If I was his boss...I will give him salary increase. It will be will deserved. COMGRATULATIONS, WALTER!
By Flora S.
It was the best experience, the stigma of being a DUII person , the agent took the time to listen to my situation and accommodated my needs!
By Remy
They were fantastic and getting me an appointment when I needed one can't say enough good things
By Paul
Stehpanie was very courteous, honest and helpful.
By satisfied
Melissa gave me excellent customer service - prompt, got me an appointment quickly, and found discounts for me. All around terrific!
By Sharon
The Guardian Alcohol Interlock device was installed on my Honda GB250cc motorbike for 6 months in 2016-2017. Every 3-4 weeks, my vehicle's battery would die because the Interlock saps a small charge from the battery even when idle, turned off, detached from the interlock, i.e. always. At the end of the 6 months, I had spent about $450 on new batteries, charging and labour costs and had been really frustrated with not having a vehicle for most of that 6 months due to the battery dying. I would call Guardian every 3-4 weeks when this would happen, and they would swear to me that it couldn't possibly be the interlock as the interlock has, and i quote, 'never caused any issues ever in its entire history'. I found this assertion particularly hilarious after looking at customer reviews (like this one) online concerning their product. I took the bike to a Honda service centre and they tested the bike and found that the Interlock in fact did take out a small but constant charge from the battery which would most certainly be causing the battery to die. All in all, if you have a motorbike or a small engine car and are in the process of looking for an Interlock provider, I would certainly recommend steering clear of Guardian. Save yourself a giant headache and look elsewhere. Ahh it feels good to vent.. As per Guardian's reply below, I've spent almost $2000 on your device with installs, calibrations, etc. over the las 6 months, and you're questioning whether or not I am even a customer of yours? I am already in email correspondence with you guys. Keep up, buddy.
By Nathan L.
Response from Guardian Interlock· Feb 28, 2017
Mr. Lord, We do not see you listed in our data base as a current or past client. If you would provide an email address, we can contact you to discuss this review further. Thank you.
It was awesome
By Jose
