All of my cameras would stop working in the evenings. Three…read moreFactor Security was able to provide me a quote and quickly schedule me. Ended up diagnosing and changing a bad power supply that could no longer keep up with the added surge from night vision. Went through and made sure everything else is as it should be after changing power supply. Protessional. Pricing is competitive. Recommend.

We had a glitch in our security system and Ruben came back to check everything. Even though it…read moreended up having nothing to do with the equipment they set up for us, they still came to our house and fixed it...for free and with a smile! Customer service like this is rare these days. There are still rare businesses that actually care about repeat customers. We will continue to recommend them to friends and family. Thank you Ruben!

last night our alarm sounded at 11 pm. ACS called me first. which I didn't hear. then my husband…read more ( thank you ). they arrived at the house within four minutes and did a thorough guns drawn check. nothing was found...but wow were they on it !! Thanks to Brian and all guards

ACS has let me down more than once, and I would not recommend using them now or in the future…read more Issues related to their installation were never properly resolved, despite numerous attempts to reach management over the past two years. I pay a significant monthly fee for a system that I often can't even use because the sensors are so overly sensitive that I have to bypass them just to set the alarm. I tried escalating the issue to Vincent, one of the managers, which turned out to be a complete waste of time.

Excellent service. Did not oversell, did the job professionally and easy to communicate with.read more

Overall, service was satisfactory. Leo was professional - came out on time and completed the work…read morein a professional manner. I appreciated that he cleaned up after himself after his work. He maintained clear communication with me throughout the entire time he was onsite and explained what work was feasible versus not as well as provided alternative recommendations. There was no "upselling," so another star for that. Prices are for the most part reasonable. However, beware, they charge an upfront of $95 callout fee, which I was not informed about initially when I was scheduling the service appointment. The lack of transparency on this was the only part that left a bit of a sour note for me. I'd use their service again though.

Guardian Angel installed an intercom and elevator keypad for access control in our building. Of the…read morebids we solicited, Guardian Angel was by far the least expensive. The two technicians assigned to do the installation, Felix and Larry, were very professional, knowledgeable, and easy to get along with. They knew what they were doing and it showed in the quality of their work. What I was particularly impressed with was their ability to come up with creative solutions for the wiring of both the intercom and the elevator keypad. Some vendors we contacted were reluctant to bid on the project because of the challenges involved, especially with the elevator keypad installation. I can see why Guardian Angel gets such great reviews on Yelp. I would not hesitate to use them again.

Charlie was awesome! Great service, wonderful staff. Highly recommend…read more Convenient and very accommodating.

Great service and they are very knowledgeable and are quick to respond which is important for a…read moresecurity company. The owner Al is great. He is always patient with answering my questions about upgrades and ext.

We've had a fantastic experience with CSI Security and can't recommend them enough. Every team…read moremember we've interacted with has been professional, responsive, and incredibly easy to work with. They always respond quickly, take the time to answer all our questions, and make sure everything is working before they leave. Their work is thorough, and you can tell they're experienced and detail-oriented. Communication is another standout. Everyone we've dealt with is a great communicator, and it's clear the team shares information internally so everything goes smoothly without us having to repeat ourselves. One more important point is that their pricing is very reasonable for the quality of service they provide. Don't be tricked by other companies that offer lower numbers. You often end up paying the price in delays or poor work. With CSI, the job gets done right the first time. Truly a reliable, knowledgeable, and trustworthy company. We're so glad we chose them.

I put a positive review on here almost three years ago when my system was new and I am just as…read moresatisfied with it as I was then. There has never been a fault in my camera setup in these three years. The reason I write again is that we replaced our laptop computers this year, and needed service to help set the software up. The company runs lean, and they do not have a normal "help desk" when you call, so you don't always get an answer or help immediately, but I still give them five stars because they care about your experience with this and they make up for it once you get their highly competent technician on your case. Joe set up the software on two computers in only a couple of minutes and it feels like these cameras are sturdy and will continue running through at least a few generations of computers. If I ever want more coverage or upgrades, I would stay with this service.

The work was quick, well done, and competitively priced. Their biggest strength is their customer…read moreservice. George and Joe were always available, knowledgeable, and accommodating. While vendors would take at least a day to respond, George would either answer my call the first time, or return my call in minutes. They got my home network set up in 2 days. The work was finished before other vendors got around to sending me a quote. Money well spent and highly recommend!

Mr Ben is L.A.'s best kept secret ;) I called him after moving into a 1930s duplex that had a…read morecouple of doors that wouldn't close. I thought maybe he could jerry rig a little hook or something for my bedroom door. Instead, he removed the sprayed-over hinges and the door itself, re-planed it perfectly, rehung it (fits like a glove now), and was even able to restore the original skeleton lock & key! And then he hung my curtains! This guy's the real deal. Could probably fix or figure out anything. Old fashioned manners, very professional. Would definitely call him again!

I rarely leave a review on Yelp, but Ben deserves taking the time to leave a great one…read more Communication was responsive and fast; Ben worked with my schedule to find a time to do the work and was on time. The door fix was magical. He is very detail oriented, took the time to do it well, and even had matching paint to cover what was sanded. Finally, he cleaned up throughly. Thank you, thank you!

Since I moved to Los Angeles in 1977, I have used all the so-called "best" audio/video companies…read more We have an extensive audio/video system and our own theatre room. Through a reputable referral, my wife and I hired MIR this year. I can now say, that I absolutely, positively have found the best. Owner Roy Ziv and his crew; Jesse (the best programmer), Armando and Mike (the best installers and wiring experts) are as good as it gets! Over these last few months, Roy and his team have totally upgraded everything we had. Bottom line, everything looks and sounds better!!!

After calling around and getting quotes to install a new DoorBird Intercom/video system for our…read morecondo HOA, I went with MIR audio. I was quoted almost double the price for labor by a competitor, and I was told our project was too small by another! During the whole process they communicated well and were clear about everything. The day of installation went smoothly, and I was surprised at how quickly they finished the job. They help set everything up and made sure we understood how everything worked. I would not hesitate to use them again!