Excellent Customer Service
The person that helped me was very knowledgeable, quick, and a pleasure to talk to and deal with.
By Bryce
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
The person that helped me was very knowledgeable, quick, and a pleasure to talk to and deal with.
By Bryce
Very helpful and patient
By Joshua
Lady on phone was super helpful
By Bryant
Felicia was terrific! Compassionate and helpful with a sense of humor Put me at ease in what was uncomfortable situation She's a keeper!
By Clark
Tywana was awesome. Made the process easy and I feel prepared going into the appointment. Thankyou!
By Kurt
From making appointment to finished job the experience was pleasant, efficient, and helpful.
By Richard
I had a hard time getting in to get my system installed. I got into the shop (in Tampa, Fl) and a tech (I think) named Tony was a huge help. I haven't had any issues and my device works great. He covered every possible scenario. Thanks Guardian amd Tony!
By Eyehateewe
I spoke with tawanda on the phone today, she was very polite and helpful assisting me with the process of getting started
By Jacob