great customer service
customer service rep had complete and thorough answers to all questions.
By Gina
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
customer service rep had complete and thorough answers to all questions.
By Gina
The title says it all.
By Steven
My account rep Jennifer Collins was amazing. She followed up and kept helping as I needed it. I really felt like I had a personal assistant.
By Robert
Best customer service I have had in a long time.
By Todd
JC was very helpful in getting me set up with the system and made the process as painless as possible. She respectfully guided me through the necessary steps. We had to verify there were no surprises at the state DMV office so she waited on hold with me until we were able to confirm the necessary information. She also scheduled the installation via conference call with the auto shop. Unfortunately I ran into a little friction with the shop from someone who wasn't involved with the coordination effort when I delivered the vehicle but we worked things out.
By Matt
Nice people who want to help
By Donald
When I called JC at customer service...she was very helpful and informative. Explained everything in detail, answered all my questions, was overall a very pleasant experience.
By Johnnie
Jen and her father are great. They had us in and out quickly and were extremely helpful. I am happy to be a client of theirs.
By Tristen