Great help
Tawana was a excellent in getting me scheduled as fast as possible.
By Jesse
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
Tawana was a excellent in getting me scheduled as fast as possible.
By Jesse
Customer service was great
By Angela
PHONE REP. MELLISA WENT ABOVE AND BEYOND TO MAKE THIIS TRANSACTION HAPPEN.
By William
Great experience, easy to set up!
By Collin
Excellent help from Stephanie!!! she truly did everything she could do to help us.
By Marcus
She was very polite and helpful.
By Kathryn
The person who took my appointment was very helpful and kind. Well done.
By Wayne
Tawana out of Cincinnati made a process I didn't want to go thru pleasant. She was very thorough and informative. Please change your on hold music though. Im sure classical dose not suit the multitudes.
By Richard