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    Katz Locksmith

    4.8 (293 reviews)
    Open 10:00 am - 10:00 pm

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    Services - Katz Locksmith

    Key duplication

    Key extraction

    Installing or replacing locks

    8 More Services

    Lock rekeying

    Lock repair

    Lockout services

    Security monitoring services

    Security system installation

    Security system repair

    Smart lock repair

    Vehicle lockout services

    Katz Locksmith Photos

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    Recommended Reviews - Katz Locksmith

    Your trust is our priority, so businesses can't pay to alter or remove their reviews. Learn more about reviews.
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    Reviews With Photos

    Hector D.

    Found Katz at the upland farmers. Needed a couple of house keys copied, josh was friendly and helpful with our copies. Now they will be my go to if I lock myself out of the house!

    Amy D.

    Our house on Euclid Avenue in Upland was built in 1914, and the antique mortise lock on the front door was no longer operational. We called Katz, and Athena came out the very same day. After disassembling the lock and cleaning all of its internal pieces, Athena was able to figure out what was causing the problem - one of the parts had a section that had worn down over time. Because replacement parts are next to impossible to find, Athena was able to use a small piece of metal to craft a new piece that rectified the issues caused by the old, worn piece. It took a lot of trial and error, but Athena persisted until the lock was reassembled and working perfectly. The charge for this two-and-a-half hour house call was very fair. I am totally impressed and highly recommend this business.

    Amazing with the kiddos. Thanks for everything.

    The kiddos had an amazing time making keychains. Thanks for being so great with the kids.

    See all

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    9 years ago

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    11 years ago

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    8 years ago

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    10 years ago

    Good service! This guy is amazing. Only took 1 minute to unlock my apt door. Saved my life

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    9 years ago

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    10 years ago

    Great service fast and on time! Had appt at 2 and within 15 min had key in hand! Also very good prices!

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    10 years ago

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    9 years ago

    Great service and cheep as well a 350$ job he made close to 120$ so I'd highly recommend this shop

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    10 years ago

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    11 years ago

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    10 years ago

    Great locksmith guy. Came by same day appt. Had me ready to go in about 20 minutes. Definitely worth it very reasonable price as well.

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    10 years ago

    Fast and quick service. Def would recommend. thank you again. Adjusted all our equipment and recommended upgrades at a good price!

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    10 years ago

    They answered within 2 rings and came within 15 minutes. Fast and professional service. Definitely recommend to anyone.

    Business owner information

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    7 years ago

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    Page 5 of 8

    Ask the Community - Katz Locksmith

    Do you work on Safes? My safe lever doesn't turn.

    It depends on the safe. We would need to see pictures of it to see if it is a mechanism we work on.

    Do you serve Glendora,CA?

    Yes.

    Do you cut and program 2014 Mazda3 transponder keys/fobs?

    Yes

    If I need a key like right now but my budget is short will they work with me?

    Please give us a call to 909-942-0282 to see how we can help you.

    Do you program and cut 2004 Toyota keys?

    Yes we do

    View All 7 Questions

    Review Highlights - Katz Locksmith

    Don arrived at my house within 30 minutes of calling and was able to open my door in a few minutes.

    Mentioned in 21 reviews

    Read more highlights

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    I live in a new Lennar build here in Ontario so I was worried how wiring would work when it came to…read moreinstalling ethernet ports that extended from one room on the second floor to the guest bedrooms. I contacted Ricardo after checking out his reviews, he responded quickly and we easily set up an appointment. He discussed possible options of placement of the ports since the roof and outer walling might pose an issue, but he was able to find good placement of my ports. Job was done quick and easy in less than 2 hours. Aside from making a hole in the wall for the ethernet port placement, no additional breakage of the wall was necessary. Ricardo did say that in some cases, depending on the walling and roofs, breakage of the wall would be necessary for some people, but not mine fortunately. Ricardo and is colleague were awesome, professional yet friendly and personable. They cleaned up after themselves and did an overall fantastic job to make any streaks or scrapes anywhere. HIGHLY recommended if you are looking to have ethernet ports installed that extend from your main router/modem that go through the wall/roof so you don't have ethernet cords lying around on the floor.

    Ricardo and his team did an awesome job installing a security camera system. Friendly and…read moreprofessional service. Good communication with Ricardo. He answered all my questions in a timely manner and offered additional information to consider. Negotiations on cost were straightforward and no pressure or surprises. He makes you aware of options and recommendations, and lets you decide. Cost for his services was better than others, and I felt more comfortable using his company. They know what they're doing and I would have no hesitation using them again for any of my electronic wiring needs.

    CCTV Guys - More cameras mounted professionally

    CCTV Guys

    (9 reviews)

    Alan is the best he's so knowledgeable, straight to the point and reliable. We were referred by one…read moreof our neighbors, to have his team install/update a wireless security camera system for our community. We've asked multiple quotes, among which Alan's proposal offers the most detailed plan that suits our needs specifically, the most up-to-date recording unit with user friendly software, at the most reasonable prices. They had to integrate the new system with our existing cameras, which could cause a lot of compatibility issues, but no worries working with Alan. Plus our community is quite big, and the cameras spread out, in order to connect all to the Internet without running wires Alan helped install the wireless bridges/Antennas. At first the signals are occasionally unstable but Alan's always there to help troubleshoot. Once he also got out of his way to help troubleshoot when it turned out to be a power/electricity line issue. We really appreciate him, and would definitely recommend him to anyone in need!

    Alan is absolutely great! He is very knowledgeable, understanding and does nothing short of First…read moreClass work!!! Alan has installed a 13 camera surveillance system at our home, hard wired Ring Doorbell, and most recently he completed a hard wired home network system with 5 Access Points for optimal wireless coverage throughout our home. He and his team are top notch, don't cut corners and offer high quality solutions at fair prices. You won't be disappointed!

    Direct Protection Security - Adt Authorized Dealer - At your service

    Direct Protection Security - Adt Authorized Dealer

    (377 reviews)

    I had no issues with the alarm service itself. But I do have major issues with shady business…read morepractices. I do realize that ADT corporate is different from installers like DPS and my complaint is more with corporate, but I feel it is my duty to inform potential DPS customers what it is like to work with ADT. DPS did my initial install and while they have been professional and courteous, they are attached to a deceitful company. Last fall, I decided to sell my house. I wanted to upgrade my control panel to an all-digital panel as part of sprucing up the house for sale. A tech came out to check out my equipment. He quoted me a price for the new panel and came out the next day to install it. I have now moved and called ADT to cancel my service. I was informed that when I upgraded my control panel, I signed a 2 year contract. Well, I was not informed of this by the tech. Did I read the purchase document for the panel? No. I'm admitting fault on that - but I was told it was just for the panel. Again, I told ADT (both in my initial reach out and in person with the tech) that I was doing this to upgrade for a MOVE. I made it clear I was LEAVING. Why on earth would I agree to a 2-year contract extension? After more than an hour on the phone with ADT trying to get it canceled (I was transferred 5 times) I was told I got the penalty reduced to "$22/month for 12 months." Before I signed (as I was in a hurry as I was at work and had already spent more than hour trying to get a simple contract canceled), I asked the account manager if there were any other hidden fees associated with the contract. He said no. Imagine my surprise the next day when a self-install unit arrived at my door with a pricetag posted to my account for ~$400. Once again, the account manager knew I was living with family and did not want or need an alarm. I do believe I was intentionally set up twice - and fell for it. That is on me. It's on ADT that I was set up. Nefarious business practices. I reported this to the BBB and a day or so later, I got an offer from ADT to reduce my penalty by $500. (The penalty was originaly showing as $1,300.) So now it's down to $700 but I am not giving up on principle. I was a customer for more than 8 years. I paid every bill on time every month. When I buy my new home, you can bet for certain it will NOT be with ADT.

    It's been a great experience with Mike & Mart. Our family got a great deal & great service. For…read moresure if I get another place Mike will be the person.

    Katz Locksmith - locksmiths - Updated May 2026

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