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Business Profile

Interlock Devices

National Interlock

Reviews

Customer Review Ratings

4.83/5 stars

Average of 24 Customer Reviews

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Review Details

  • Review fromChristopher W.

    Date: 03/11/2025

    5 stars
    Finding oneself needing a company such as National Interlock. Is a stressful time. Yet National Interlock made this part seamlessly smooth. I go to Jim and Preston off Middlebrook here in Knoxville.
    Great ! Shop !
  • Review fromJameszella D.

    Date: 03/11/2025

    5 stars
    Very nice people. Very clean and keep the place decorated with every holiday. Have a rest room for the customers to use.
  • Review fromJess M.

    Date: 03/11/2025

    5 stars
    Not under the best circumstances but couldn’t be happy with any other company. Awesome people!
  • Review fromMichael T.

    Date: 03/07/2025

    5 stars
    Very courteous and helpful with the process for getting your license back
  • Review fromKatie W.

    Date: 03/07/2025

    5 stars
    The install was fairly quick and the staff did a great job of thoroughly explaining the device to me. My monthly appointments I’m usually in and out within 30 minutes. Overall I am happy I chose to go through National Interlock for my interlock device.
  • Review fromHannah

    Date: 03/07/2025

    5 stars
    Very informative and helpful during the install process. Each calibration appointment is quick and easy. All of the staff is kind and courteous :)
  • Review fromChad G.

    Date: 03/06/2025

    5 stars
    Misty , Jimmy and the National Interlock crew it a home run in my book!!! They made my experience with interlock easy and supportive!!! Iam very glad to know that there are people in this world that help people who want to get through hard times and challenges that life may bring. They have my business in this field . Thank you yall !!!!!!!!
  • Review fromChelsea B.

    Date: 03/05/2025

    5 stars
    Were extremely helpful throughout the entire process and excellent customer service . Really appreciate this company and location ! !
  • Review fromeddie b

    Date: 03/05/2025

    5 stars
    they are great to work with and stayed open late to help me out
  • Review fromChad W.

    Date: 03/05/2025

    5 stars
    All great people. Never had a bad experience with them.

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