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.
Also known as
guardianinterlock.com
Website
guardianinterlock.com
Category
Auto Parts & Wheels
Listed on Five Star Index
2026
About these reviews
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The company replied to 49% of reviews.
Latest
Most recent review: October 2026.
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Starting an ignition interlock program is complex, and we are happy we could make it straightforward for you. Guardian customer service agents are here for you throughout your program.
DW
Dustin W.
The tech was great and got me hooked up…
The tech was great and got me hooked up and back on the road within 2 hours
Response from Guardian InterlockFeb 14, 2020
Thank you for the kind words! We’re so happy your visit at the Grand Junction, CO Guardian shop went so smoothly. I have forwarded your review to our management team in that area to recognize their outstanding service!
Please check out our money saving referral program if you know of others who need an ignition interlock.
http://www.guardianinterlock.com/blog/save-money-on-your-ignition-interlock/
JC
Jeremy C.
The tech
The tech. definitely needs improvement (warm up time, false positive, etc.) But overall no real complaint 4 stars because everything works as well as expected, and the installer/ technician was really, helpful & professional
Response from Guardian InterlockDec 16, 2019
Thank you for the honest feedback, especially the great review for our Guardian Pueblo, CO technician. I have forwarded your review to our Management team in that area to recognize their outstanding service!
Unfortunately, our devices' settings are dictated by state regulations, so the fail readings on our devices are outside our control. Please note that the ignition interlock device will register any trace of alcohol from any source containing it - this is how the device effectively ensures an impaired individual is not able to start a vehicle, and how we are able to confidently state the Guardian ignition interlock is fulfilling its purpose. We advise in our training manuals, training videos, and in person when our clients install the device - to be mindful of testing right after eating, drinking, using mouthwash, etc., as doing this can potentially register a fail and will require the device to be reset.
Please check out our money saving referral program if you know of others who need an ignition interlock.
http://www.guardianinterlock.com/blog/save-money-on-your-ignition-interlock/
SG
Steele G.
At first it cleared my service days…
At first it cleared my service days from 58 to -1. I called the mechanic, bring it in he said. When installed he told me I had 2 minutes to restart the truck after shutdown. Not true, that was why it said I tried to by pass the system. So needless to say he serviced it and told me not to restart it after shutdown. He stated that's why everyone is having trouble with this. Haven't had a problem since. I would recommend it in fact I have already. Thanks.
Response from Guardian InterlockNov 27, 2019
Thanks for the thoughtful feedback! Guardian values our clients and we’re glad you felt that.
Please check out our money saving referral program if you know of others who need an ignition interlock. http://www.guardianinterlock.com/blog/save-money-on-your-ignition-interlock/
JA
Jacksonville
The gentleman I spoke to on the phone…
The gentleman I spoke to on the phone Mr. Englander was very kind and extremely helpful. Great Service.
Response from Guardian InterlockSep 13, 2019
Thank you for taking the time to share your experience with Jim! He will be pleased to know his exceptional customer service made you feel valued and important to us. This is what we strive to be for our customers, and we are thrilled to hear that Jim was able to make you feel this way!
JD
Joseph D.
Cheap and convenient
Cheap and convenient
Response from Guardian InterlockAug 7, 2019
We are so grateful for your kind words. Thanks for sharing your review with us and the community.
RC
Robert C.
Long wait time on phone
Long wait time on phone
Response from Guardian InterlockAug 5, 2019
We appreciate you taking the time to provide us with honest feedback. We are always striving to become better for our customers, and your feedback helps us to best understand how.
SP
Sara P.
Works well
Works well, not too intrusive. My installers at Interlock Solutions LLC Guardian are awesome! Wish it had a little hook or something to hang it out of the way.
Response from Guardian InterlockJul 19, 2019
Thank you for the kind words! We’re so happy your visit at Gainesville, FL shop went so smoothly.
Pro tip: Many of our clients mount the handset to the dash with velcro. (Just be sure to move it out of direct sunlight when leaving your vehicle.)