Chyntia was great
Chyntia was great. Very helpful.
By David
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
Chyntia was great. Very helpful.
By David
I was delighted with Tawana !!! Very helpful and got the best rates for me
By Karen
Your CSR/Customer service person Melissa, was prompt with email replies, and prompt and courteous over the phone. Made the process easy.
By Jeff
I really appreciate the excellent customer service...
By katayia
Was very helpful and went out of his way to assist me and get me setup.
By Yang K.
Very helpful throughout the process, quick and easy.
By Derek
Very easy process
By Nick
The process of getting the breathalyzer installed was very simple. The Guardian staff has been very helpful. I spoke with Gerald and he was extremely professional, friendly, and helpful.
By David