I hired Monty Davis (Fire Sprinkler Company) to inspect the sprinkler system in my ADU, completed…read moreMay 12, 2026. A few issues worth knowing about before you hire him. Payment dispute: I received his invoice on May 13 and told him I'd pay once I received the certificate. Over 4 hours of back-and-forth that day, he first said he'd send it "when back in the office tomorrow." He continued to say that the certificate was actually the tag on the sprinkler pipe and told me to photograph it for my insurance company. When I asked again for an actual certificate, he said no certificate existed. When I still asked for documentation, he threatened to instead file paperwork with the fire department flagging my property as missing items -- adding that he'd kept his word and I should too, and that he normally charges more. I paid him that same day to resolve it. Report delay: The written inspection report still hadn't arrived 5+ weeks later, despite multiple follow-ups. I eventually notified him I'd prepared a formal complaint to the Contractors State License Board and gave him 7 days to send the report before I filed it. He sent it on day 8 -- one day past that deadline. The complaint was not filed. Compliance threat despite no requirement: Monty did identify certain items as missing during the inspection, and during the payment dispute he threatened to report these to the fire department. However, after speaking with CAL FIRE, I learned that as a single ADU where I reside on the property -- not a larger multi-unit building -- these items were not actually required for my property, and both CAL FIRE and my insurance company confirmed no inspection was required at all. Monty is licensed in both California and Arizona -- the issue here isn't his credentials, it's the pressure tactics and lack of follow-through. If you do work with him, get every commitment in writing and document your communications.

Monty was one of the only sprinkler system companies that responded to my questions about our…read morein-home sprinkler system, and he was the only one who came out to our home to look at the issue. Monty provided insight and ideas to address our issues. Thank you Monty for taking the time to come out to talk with us, and provide us with viable options

I would actually give 0 stars if possible. We had a contract…read morewith him to install our fire sprinklers. We sent him the plan and paid the deposit. We never heard back from him since the day we paid. He doesn't answer our calls. Outright waste of money!

These guys are really helpful…read more I needed to replace couple of my sprinklers and even though I did not sign up with them, They understood my issue and gave a great feedback. They definitely seemed reasonable from price point. Thank you for your help!!

Great experience working with this fire protection company. The team was professional, responsive,…read moreand very knowledgeable. They showed up on time, completed the work efficiently, and made sure everything was up to code and properly tested. The whole process was smooth from start to finish, and they made sure all inspections were handled without any issues. Highly recommend them for reliable and quality fire protection services.

Fast service, highly recommended. I had fire inspection done. Will use them again. Thx Shahin!read more

These guys are Great. I called and spoke with Terri who was a big help in scheduling my building…read morewith 135 fire extinguishers that need servicing.There are very few union shops who perform this service and GS just happens to be one. I highly recommend Golden State Fire! .

Fire Sprinkler valve starter leaking at my home in Livermore, which I thought could be fixed by…read moreplumber. Surprise :-( I've been one of the home owners that did not realize the boundary between plumbing and sprinkler repair.. I've asked few companies and chose Golden state fire safety because they're local. Barbara and Mark are friendly and they sounded knowledgeable. The fire sprinkler is fixed and I'd be glad to recommend Golden State Fire Safety to others.

On Friday night of a long holiday weekend I hear the dripping of water from a fire sprinkler head…read morein a closet. I serious drip, everything in the closet was drenched. I had absolutely no idea of how such a thing was fixed. A plumber told me how to turn off the water to the house, and I was left without water all night. No one responded to yelp requests, and when trying to find help on google it turned out that few do this type of residential work, and none of those called me back. I found Liquitech and made a Hail Mary phone call. Justin responded, and left a job in Monterey to drive over two hours to Dublin to help. What an incredibly nice man! He got me up and running until a more permanent solution could be found. It was the pipes, not the fire system. Then he drove back to Monterey. I expected to pay through the nose, but he was very reasonable. I'm incredibly grateful.

Fair, honest, and reliable business. Their expertise in fire systems is outstanding. Highly…read morerecommend them for any fire system work, professional and knowledgeable team!

Very professional family company! Highly recommend! They work for my multiple commercial complex.read more

Great service honest. Recommended. Will use every year. Also sent someone out immediately since I…read morehad an immediate issue

Great company super reliable and professional. Highly recommend these guys…read more They definitely know what they are doing.

Great Company to work with. Had a Leak in our Apartment complex Laundry room coming from the fire…read moresprinkler system I contacted Cosco Fire In Livermore And they sent a Tech out rite away and got the leak fixed.. all in a few hours that same day. The Tech was a pleasure to work with he knew what he was doing. He was courteous and respectful the whole time he was here at my Home he was a right to business.. I am thankful Cosco Fire was able to fix my leak. I would highly recommend Cosco Fire Protection for your Fire Sprinkler emergencies

Called & received same day service. Dan was reliable, timely & inspected 4 of our fire…read moreextinguishers. We will be using Dan for future inspections.

We've been doing business with Mazzy's for many years but will no longer be contacting them. We…read morehad an issue with service and billing. The service person never showed up for the appointment and there were no calls, texts; nothing. Mazzy also charged finance charges on a bill, for which i paid on time but for which they claim they didn't receive the check. I have a bank billpay confirmation that i trust more than i do Mazzy's A/R department. We find Mazzy's a difficult company to work with and will no longer be doing business with them.