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 Five Star Index, with an average rating of 4.0 out of 5.
Also known as
guardianinterlock.com
Website
guardianinterlock.com
Category
Auto Parts & Wheels
Listed on Five Star Index
2026
About these reviews
Replies
The company replied to 49% of reviews.
Latest
Most recent review: October 2026.
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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.
TC
timothy C.
Taken advantage of
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!!!!!!
Response from Guardian InterlockFeb 23, 2026
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.
WC
William C.
The costumer service is always really…
The costumer service is always really kind and helpful, you get answers quickly to any questions you might have.
Response from Guardian InterlockFeb 16, 2026
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.
JR
JOAQUIN ROBLES C.
Fue muy amable y explica todo muy bien
Fue muy amable y explica todo muy bien
Response from Guardian InterlockFeb 10, 2026
Nos alegra mucho saber que Eddie nos brindó un apoyo tan excelente. Reconocer el esfuerzo de los miembros de nuestro equipo es una de las mejores cosas que hacemos, y sin duda compartiremos sus comentarios con ellos.
CJ
CHARLIE J.
New interlock exchange
I had a great experience in setting up an exchange on my interlock.
Response from Guardian InterlockFeb 10, 2026
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.
SC
SANDRA C.
They were rude charged me for…
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.
Response from Guardian InterlockFeb 6, 2026
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.
YF
YVONNE F.
Ur customer service is great
Ur customers service was great
Response from Guardian InterlockFeb 6, 2026
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.
MJ
Manuel J. C.
Their agent Rick was very patient in…
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.
Response from Guardian InterlockJan 23, 2026
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.