Very easy to work with
Corissa helped me with all of my questions and was very kind and pleasant to work with.
By SG
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
Corissa helped me with all of my questions and was very kind and pleasant to work with.
By SG
My experience with Guardian was quick, easy, and their staff was very friendly. If you need to have an interlock installed, you may be stressed and going through some trying times. Dealing with Guardian was a breath of fresh air and I really appreciate their friendly customer service. I highly recommend Guardian.
By Michael
Heather's help made my transition much easier.
By Paula
Tawanda Rozier, Thanks so much for the excellent customer service and patience this morning Tawana. You were more than helpful and courteous throughout the whole process. Know that you are appreciated! You made an embarrassing situation very easy and helped me to feel comfortable getting back on track with driving again! Know that you are appreciated! Thanks. Sc
By Sc
I would absolutely recommend this company because of the employee that assisted me with signing up for their services. She was very polite patient and explained everything to me in detail. I would like to thank her for making me feel so comfortable during my stressful time. The employees name was Tawanda and I would like her to be recognized for the amazing job she did.
By Amy
EXTREMELY EFFICIENT. JENNIFER WAS GREAT.
By Rene
Helped me set an appointment up and answered any questions i had
By Mathew
Great people skills.Answered all my questions.
By Ann