Best Reviewed Interlock Company
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Real Reviews Written By Real Customers


Crystal Valentin
17:19 08 May 22
Nationwide Interlock was the best choice I made. Easy system to use, I had absolutely no issues with the machine or any service downloads the whole time I was on their service. Customer service and billing are exceptional friendly and helpful. I would suggest Nationwide Interlock to anybody who needs this service

ann gearardo
13:56 06 May 22
Nationwide interlock handled all my questions that arose. I was having a hard time blowing into the system but they helped me understand what to do. Their staff is always friendly from billing to the download staff. I would recommend this company if you need this service.

Tyrell Dalton
15:27 03 May 22
My experience with Nationwide was very good. Anytime I had a question or problem I was there to answer me and direct me in the right direction. I would recommend their service to anyone needs a interlock on their car because they are very professional very reasonable.

Michelle Mayberry
15:29 19 Apr 22
Overall, service and billing was easy to deal with. However, on the one occasion I DID have an issue (with a malfunction of the device), the employees did not give me proper documentation, which resulted in a license suspension and violation hearing. At which point, it was nearly impossible to get in contact with Nationwide’s management, or to have them provide any documentation to SOS. Fortunately, the hearing officer ruled in my favor, saying that this is common for them to “not admit any mistakes or responsibility for malfunction of equipment”. So if you go with this provider, you should be mostly okay… just make sure you confer with your lawyer and / or Secretary of State if you have any equipment issues.

lori green
19:57 08 Apr 22
I had breathalyzer interlock device installed for a year. All the staff, down to the billing dept, are wonderful! The device was user friendly and easy to maintain. The year went by pretty fast and everybody was really really nice and helpful. My main office was the Farmington Hill office and I've been to Troy and they were exceptional as well.

Josh Kowal
17:39 05 Apr 22
Thank you Nationwide for all extra time and efforts to get me through my hard times. Had my device for three years and never had a any issues with it. All of your employees are friendly and show respect. From the super nice ladies at office to the fast and friendly guys at the service department thank you

Matthew Hawes
19:19 22 Mar 22
My experience at nationwide Troy was an overall good experience. The billing department is easy to reach and email. Though we had a couple mix ups with billing, they had the issue fixed or answers to me within a day. The technicians were also available during the day on call if ever needed.

Gabriela Barbir
04:07 18 Mar 22
As frustrating as having an interlock is this company definitely helped with all trouble shooting and with making sure I had all my appointments set up. Whenever I had an appointment conflict they very quickly would accommodate a new appointment for me. When it came time to getting my license release they actually helped push my paperwork through to the DMV in a different state. Very grateful to have used this company.

Stephanie Sparks
00:57 05 Mar 22
Fast and friendly service! I can not say enough good things about Nationwide Interlock. Staff is so kind, no matter in person or on the phone. Downloads go quickly and hassle free!

Kellie Humpert
17:14 17 Feb 22
I used this service for my drager device that I had to have in my car. They were always accessible and I loved that they were actually in Michigan. Staff was so helpful and I highly recommend.

Nicholas F
21:28 10 Feb 22
Nationwide Interlock of Troy is definitely 5 star! They were very understanding, helpful, flexible and accommodating towards my needs and requirements throughout the otherwise stressful times. They don't treat you like just anothet number on their list, they treat you with respect as a human. I would definitely recommend them to anyone who is facing these tough times and is in need of their service. Oh, and Mikaela is awesome!!

Jim Murphy
17:02 07 Feb 22
Nationwide Interlock was the best choice I made for my second go round at having an interlock in my car. I had absolutely no issues with the machine or any service downloads the whole time I was on their service. They gave you a helpful packet a nice little light to help you not fail any tests they want you to be successful in your endeavor with the Interlock. Customer service and billing are exceptional friendly and helpful. I would suggest Nationwide Interlock to anybody who unfortunately needs this service

Jesse Korhonen
14:23 31 Jan 22
Nationwide Interlock was a pleasure to work with during this whole process. Everyone I interacted with was a true professional and I would highly recommend this company for anyone who needs an ignition interlock.

Stephanie Fredin
22:32 21 Jan 22
Very easy service to use, great coordination on their end. Extremely helpful and pleasant staff.

Christian Barnes
20:09 03 Jan 22
I called three different places and these guys got me the best prices on my interlock. Carmella Leone was very helpful with the process and extremely professional. Highly recommend.

Tj Young
23:11 22 Dec 21
The staff here is respectful and courteous. When there are any billing issues, they are polite and quick to follow through.

Bill Ortman
20:26 29 Nov 21
After an issue with the reminders not being received by my phone that resulted in me missing a calibration and payment date; the owner at Nationwide Interlock reached out to me to resolve the issue.They were pleasant and professional while I explained the issue I had and were willing to refund the late fee due to the circumstances.They also promised to do all they could to resolve the issue with my reminders and ensure that I get my latest schedule mailed to my house.
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