Saved me. Wore a mask, very professional. Excellent right on time. What I liked is he answered the phone and said he would be there in 20 minutes. read more

I accidentally broke my one and only key to my vehicle and Ray battled through bay area traffic from one side of the bay to the other to assist me in cutting and programming a new key. He was very professional and his years of experience and knowledge show through his calm, precise deliberate movements. His customer service and great prices make his company in my opinion, TOP NOTCH!!!! read more

I highly recommend Diamond Locksmith! We needed help installing two gate locks that were really tricky to install for several reasons. At least one other locksmith had rejected the job because they said the locks we'd selected would be too hard to install. But Alex from Diamond Locksmith was very dedicated and willing to go the extra mile and get creative to figure out how to install the two gate locks that we wanted. We're super happy to have the locks installed and Diamond Locksmith will definitely be our go-to locksmith in the future. read more

Ray was helpful & quick to respond.excellent customer service! Definitely would recommend!

The technician came out on time, polite, professional and fixed the problem quickly. I won't use any other company from now on. HIGHLY recommend! read more

I had to rekey my locks and they were able to get me an appointment the next day which was great. Amir was super efficient and friendly. I ended up changing a lock too. Amir was able to go get a lock that would fit and came back within 15 minutes with a new one! Highly recommended. read more

Lost the key to an exterior lock we don't use very much, and contacted Diamond Locksmith based on the stellar reviews. DeShawn was great - came out within an hour of my call, contacted me as he was on his way, was professional and highly efficient. Was able to re-key the lock to match our primary door lock, so we only have to keep track of one key. Reasonable price for the service. Would definitely call them again. read more

He was on time and notified me before he arrived because I was not at the property. He was very knowledgeable and worked quickly. What I liked best is he give me advice about the repair I requested that was not really a good value for the money. He talked himself out of a $150 repair. I really appreciated that. read more

Ray did a great job today! On time, professional and knowledgable! He solved some long-time mysteries I have been having with my locks!

My daughter locked her door short before 9pm one week ago. I called Diamond Locksmith and they told me someone would come in 30 minutes. In 20 minutes I was able to open the door myself. I called them and they canceled the service even a worker is on his way to my house without any charge. It's a very positive experience. read more

Dependable, friendly and knowledgeable locksmith - Thank you so much Ray, I really appreciated your ability to come so quickly, and make a new remote-entry key for my 2011 VW Jetta. I rely on my car for work, and was afraid I might not be able to find someone on a Sunday to make a brand new key for my car, but you were prompt, highly skilled and super kind. Thank you for your service, and the informative and thoughtful conversation while you worked! read more

I was locked out of my carport storage unit. Between my roommates and I, we lost the key to the master lock. We were helped out by Ray. He came over the same day we called and got that lock off in minutes. Fast, simple, easy! Now I can store things and get back to my quarantine home projects! read more

I highly recommend. Ray was amazing. Quick response, super efficient service and an expert locksmith. Thank you so much.

Just when I was beginning to believe good honest service was an antiquated concept, Ray from Diamond proves me wrong. We had gotten a key stuck in the ignition of my dads car and couldn't figure out what to do. We tried AAA, nope. We tried YouTube video hacks, nope. I called Ray and within the hour the key was extracted & all was good in the world. Thank you Ray! read more

I spoke with Amir on the phone. We set up an appointment for a mobile service because my ignition was sticky in my old Honda Element. I was afraid I'd get stuck somewhere without being able to remove the key. He showed up on time at my home and repaired it on the spot. He's knowledgeable in his craft, professional and efficient. The ignition works great now. read more

Our bedroom door was locked and after trying to unlock it on my own and getting frustrated, I called Diamond Locksmith. They answered immediately and provided a quick cost estimate and arrival estimate. Shortly before their arrival, I had managed to open the door. Called them back to let them know they no longer needed to come and was prepared to pay a fee for their trouble - they were 7 minutes away! They declined and were very polite. Really appreciated their quick response and accommodation. Would use this service in the future. read more

Its my first time using a mobile locksmith to replace 2 Mercedes key fobs. Reasonable price and got it working in under an hour. Ray took care of it with a good attitude. read more

Excellent service, got same day deadbolt installed and way better price than Millbrae lock!

Excellent service and communication! Ray was responsive and quoted a reasonable price. Josh came out and was professional and courteous and was quick to replace and re-key our door lock. Appreciated them coming to Newark, too! Thank you! read more

We lost our key to an old coke vending machine. Ray came the next day after we contacted him. He showed up right on time and was able to get us a new key made with a spare. He was professional and wore a mask the whole time. read more

Easy and convenient, great service. He came to my work and was able to make a new car key remote. Thank you!

Ray is a great guy, very professional, prompt with his service and good sense of humor. He was quick in diagnosing the problem and fixing it with fluency. Found him on Yelp with all 5-star rating and he definitely deserves the high rating. read more

Amazing service. Skilled, customer oriented, reasonably priced, and works quickly. I can't recommend Diamond Locksmith enough.

I got a motorcycle with a missing key. I emailed Ray with a couple questions. He responded immediately with a quote. I called the next day, they showed up that afternoon, wearing a mask. Very friendly and helpful. Got the job done pretty quickly for something I thought would take hours. Took a credit card through square. read more

Ray is in one word: "awesome"! He really knows his stuff and is as flexible as he can be in this profession. I cannot speak highly enough about this hard working man who really, really cares about his work, his customers and his family. read more

Fast responder, at first gave my husband great tips before he came out just incase it can be fixed my husband walked in the home smiling Bc he finally got a brand new key that unlocks the car lol! Thank you for such a professional service! read more

When I saw the reviews I thought this was the guy to call to get my car keys cut! But dam I was wrong! After confirming with him for 12 o'clock today I thought we were good. But after waiting an hour after 12 I decided to text him to see what was going on, which he responded he was running behind schedule and would be here from 2-3, so I decided to wait more. Now it's 4 and no text from him no call no apology nothing so again I text him saying don't come, I'm a father and have things I need to do today. What a disappointment! I hope he doesn't do it to you! read more

Ray trouble-shot and worked around a problem that kept my 2004 Sonata from programming remotes.. Recommended!

Ray is really nice and does amazing work! My company works doing deliveries for Amazon and he was able to make my spare keys for our vehicles super fast! His prices are very affordable too! Thanks Ray! read more

Zero Stars. The worst contractor/locksmith experience of my life. Took $1800 to install a new lock, did a horrific job (drilled all kinds of holes in my door- when he assured me none would be needed, messy wood filler all over the place on my expensive door). Didn't use provided latch plate- said he would come back with the right one and never did. A trained monkey would have done a better job! read more

Marco did an excellent job installing my new deadbolt on my front door. He made sure everything was clean after completion and that the lock was installed to my satisfaction. He was very polite and courteous with superb workmanship. Thank you. read more

Fast, professional, responsive, and cost effective. How much more could you want? :) I reached out to them at 5:45 on Thursday to have locks RE keyed and they were at my house at 6:25. UNREAL!!!! Thank you so much!!! read more

$90 to open my car door?! Get out!!car keys another $350 ??Not Highway robbery at all, really!

Ray was super responsive and able to quickly provide a quote and schedule an appointment. He was very efficient and the price very reasonable. read more

We were locked out Black Friday and the apartment emergency services was closed, we tried for so long to get in. Finally called Diamond locksmith and he arrived in 12 mins. Even though the lock was advanced, he got us without drilling anything/requiring us to replace the lock. Was in the apartment within 5 minutes. Was very professional, such a life saver. Definitely recommend. read more

These guys(Rey and Ron) rock!!! I found this diamond locksmith via words of mouth. Super easy and quick. Great mobile service with nice office car. Thank you guys. Best, HJ read more

Diamond Locksmith - Keys & Locksmiths Near Me - San Mateo, California

Wow, loved this guy! He showed up on time, had all the necessary materials, made the repair look effortless and completed the job in a reasonable amount of time. Changing a car ignition system due to a break-in would have cost me hundreds of dollars. Ray's on the spot repair job was certainly worth the expense! read more

We received expert, on-time, efficient and extremely courteous service from Joshua and Sean. They took care of some old door locks which needed repair. Highly recommended without reservation! read more

I had a great experience with diamond locksmith they showed up promptly and were very professional; communication was very clear and easy they replicated a car key for me that I had had trouble finding someone else else who could replicate. overall it was a great experience. And probably saved me $200 compared with getting my key from the dealer. read more

Beyond a quality service. From the moment you call to the end of the service, it is a straight to business type of service. There was No price dodging at all during the phone call. Gave me a fair honest quote from the start. I called several places before and they quoted much higher. The young gentleman gave us a very good deal! Call them and you will not regret it. 6/10/2021 read more