Guardian Interlock (guardianinterlock.com) has a 3.8 out of 5 rating on OK.one, based on 60 user reviews collected here. It is listed under Electronics & Technology and its reputation is mixed. Opinions are polarized: 70% rate it 4 stars or higher while 28% give 1 star; The business has replied to 100% of negative reviews; 50 of them were added in the last 12 months. Last updated 2026-08-10.
The representative was really kind and understanding. He took his time and answered all my questions.
It’s great to hear that Cristian was able to assist you so well. Our team is dedicated to supporting our customers every step of the way, and your recognition reinforces the effort they put in every day.
Everything from customer service to technology to supervisor not calling back or following thru would never recommend this company
We regret to hear that your experience with our service staff was not a positive one. We understand how important respectful, helpful communication is, and we are taking your feedback seriously. We’ll be following up with you directly to learn more and make this right.
My customer service was great really helpful and polite I was confused at first asking questions and he answered every one of them and made sure I understood everything and he even explained the process step by step what to expect the day of the installation for my device
We really appreciate you taking the time to highlight Arthur. Providing excellent customer support is a top priority, and it’s wonderful to know that they made a positive difference in your experience.
We’re thrilled to hear that Selene provided such great support! Recognizing our team members for their hard work is one of the best parts of what we do, and your feedback will absolutely be shared with them.
She went above and beyond helping me with a complex situation, excellent service.
Thank you for sharing such kind words about Marilyn. Exceptional service is what we strive for every day, and knowing that your experience reflected that means a lot to us.
We truly appreciate you highlighting Arthur. Our team takes pride in providing excellent support, and it’s great to know their efforts stood out to you.
Updated my review. There's was and miscommunication in the beginning. Things did end up getting squared away. I'm grateful for Guardian Interlock. The agents and workers are mindful and willingness to listen and correct. So that's why I upgraded my review. They fixed the problem. Thanks Guardian. Will recommend and have recommended.
We’re sorry to hear about your experience at your appointment. We’ve escalated this to management for review, and a Guardian team member will be in touch to assist you directly.
Terrible. Do not use this company. I spoke to multiple representatives before I made any appointment, about the 0 installation and free month. That you wouldn’t pay anything down. They assured me multiple times this was the case, and I reiterated that, because I get paid a different day. I went to drop my car off, and went to pick it up after work. Waited an hour, for anyone to even show back up after I sat outside. Was then told I owed $115 for the labor. I was told by both, that they had negotiated and both agreed on what they had told me. After being there another hour and a half trying to figure it out, I ended up having to leave my car there, because I couldn’t pay the $115 until the next day, and they wouldn’t give it to me If I knew this, I would have scheduled accordingly. So yes, there are “hidden fees.” And this is an overall horrible first impression, not looking forward to having to deal with this for the foreseeable future. Go somewhere else
We’re so sorry your appointment wasn’t the smooth experience it should have been. We’ve shared your feedback with our field management team, and someone will be reaching out to make things right.
It’s great to hear that Arthur was able to assist you so well. Our team is dedicated to supporting our customers every step of the way, and your recognition reinforces the effort they put in every day.
Customer service is impeccable, friendly and courteous Customer service representative.
We’re so glad you had great experiences with Soc and Jesse. At Guardian, we know that every interaction matters, and it’s wonderful to hear that their support made a difference for you.
I set up a date & time to have the equipment installed at service provider, 3505 E Saint Vrain, Colorado Springs, CO. 80909. When I called Guardian Interlock services at their 1-800 number to set my appointment, at no time was I asked about any breathing difficulties, asthma of any kind and/or problems blowing into the device to measure alcohol in my body. I went to my appointment, signed their documents, and had the device installed. I couldn't blow hard and long enough into the device to make it work properly because I do indeed have asthma and COPD. The tech, Patrick, stated I could have my doctor send a letter explaining my condition. While I was there, I called my doctor and he immediately sent over a letter noting my condition. The tech, Patrick, then stated he couldn't use it that there were forms that I needed to have filled out by the dmv etc. I was told that could take 30 days. While frustrating, I still understood and asked him to remove the equipment and that I would get the proper documents. He then told me there would be a $250 charge to take it out. Very frustrated now, I could not see why the charge. I understand shop labor, but it took him 30 minutes to install it and all of 10 minutes to take it out. Seems a bit high, don't you think. The reason I am soooo frustrated and dissatisfied with Guardian, it's service provider and the tech; is that no one ever brought to my attention before the appointment nor at the install, where there any breathing difficulties. I stated to the customer service representative that, that conversation should be had with the customer prior to installation of said equipment into my vehicle. I was told, I should have asked! When I brought up to the service provider, that there should be a mockup of the equipment at the facility to use to make sure there were no problems, i WAS TOLD AGAIN, ":YOU DIDN'T ASK" Had there been any prior conversation about the use of the equipment, I would have already had my documents in order at the time of the install. So pretty much I was told by 3 persons, it was my own fault, I should've asked. Piss poor customer service by Guardian Corporate and even more piss poor service by the installer. Appears that they can do whatever they want and treat the customer however they want because they know that they have you in the strangle hold. I'm a 60-year man, not a kid and I should have not be disrespected they way I was. No suggestions and/or help was provided; just told it was my fault. DON'T USE GUARDIAN, THERE'S MUCH BETTER COMPANIES OUT THERE!!!!!!
We appreciate you sharing your experience. We're sorry to hear about the difficulties you faced regarding the interaction. Unfortunately, there are a lot of one-off variables that an interlock customer can face, and they can't all be addressed during enrollment. Not being able to provide a proper amount of air is rare but easily resolvable. Additionally, I see that we didn't collect any money. Someone from Guardian's leadership team will be in touch.
The costumer service is always really kind and helpful, you get answers quickly to any questions you might have.
We really appreciate you taking the time to highlight Jair. Providing excellent customer support is a top priority, and it’s wonderful to know that they made a positive difference in your experience.
I had a great experience in setting up an exchange on my interlock.
Thank you for sharing such kind words about Jose. Exceptional service is what we strive for every day, and knowing that your experience reflected that means a lot to us.
They were rude charged me for installing . It drained my battery dead ,and I haven't been able to drive my truck. I can't breathe that hard because I have asthma.
We know how important it is for an appointment to go smoothly, and we’re sorry we missed the mark. We’re working with our teams to make sure future visits are more positive. A Guardian team member will be in touch to assist you directly.
Ur customers service was great
We truly appreciate you highlighting Jair. Our team takes pride in providing excellent support, and it’s great to know their efforts stood out to you.
Their agent Rick was very patient in hearing and understanding my situation and took the time to review my account and answer my questions professionally.
We’re so glad you had a great experience with Ric. At Guardian, we know that every interaction matters, and it’s wonderful to hear that their support made a difference for you.
They suck. Always bill incorrectly. I was at the shop when they called saying all equipment turned in and end my service. Months later I get a bill for over $300...
Thank you for bringing this to our attention. Our team will be reviewing your account thoroughly and we will be reaching out to you to address this directly.
I called over a discrepancy with a charge and was I admit , very upset. But as soon as Jose got on the phone his immediate calming tone and easy going demeanor made me realize that i was over reacting . In this day and age of almost non existent customer service dealing with Jose was an absolute delight. I went from super upset to laughing and realizing what a jerk I was being after a short time on the phone with him, we need more people like this, and customer service clear straight to the point and the most calming person I’ve spoken with on the phone and sometime You got a real winner there !
It’s great to hear that Jose was able to assist you so well. Our team is dedicated to supporting our customers every step of the way, and your recognition reinforces the effort they put in every day.
Bad services, prices are not what they said, a lot of hidden fees,
We know this isn’t an experience anyone chooses, and we’re sorry for the frustration. Our priority is to give you the support you need to get through your program successfully. All fees are listed in your original contract. A member of our executive management team is reviewing your account and will reach out to assist you in resolving this matter.
The rep that helped me knew what he was doing and was able to answer all the questions I had
We really appreciate you taking the time to highlight Eddie. Providing excellent customer support is a top priority, and it’s wonderful to know that they made a positive difference in your experience.
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