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    Mainline Security

    4.0 (109 reviews)
    Closed 8:00 am - 5:00 pm

    Services - Mainline Security

    Key duplication

    Installing or replacing locks

    Lock rekeying

    1 More Service

    Lock repair

    Mainline Security Photos

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    Recommended Reviews - Mainline Security

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    2 months ago

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    2 years ago

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    1 year ago

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    8 months ago

    If you need simple keys copied, yes. However, re-keying a lock, no, they're overpriced from other places.

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    6 years ago

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    4 years ago

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    18 years ago

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    18 years ago

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    15 years ago

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    8 years ago

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    6 years ago

    Very helpful with key copies. Great service with a difficult to replicate key; got a new one after first didn't work

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    5 years ago

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    9 years ago

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    8 years ago

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    9 years ago

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    7 years ago

    Quoted one price over the phone. Charged a higher price after Services were rendered. Two thumbs down.

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    4 years ago

    Always prompt, polite, and knowledgable. Can't say enough positive things about Mainline Security!

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    7 years ago

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    19 years ago

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    10 years ago

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    18 years ago

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    15 years ago

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    11 years ago

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    8 years ago

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    16 years ago

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    17 years ago

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    12 years ago

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    17 years ago

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    17 years ago

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    12 years ago

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    19 years ago

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    Page 1 of 3

    Ask the Community - Mainline Security

    Review Highlights - Mainline Security

    Fast forward a few weeks, and we had run into a problem with the lock on our front door.

    Mentioned in 6 reviews

    Read more highlights

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    United Locksmith

    United Locksmith

    4.7
    (196 reviews)

    Opportunists. Tried to charge me too much. Not too bad but…read morenot the best. I've found a better locksmith since then.

    Gal was AWESOME. I live in Dublin and called him to help my elderly parents and elderly caregiver,…read morewho doesn't speak English, in San Francisco. I explained to Gal that I would not be able to meet him in SF and if he could correspond with me over the phone to discuss what needed to be done while he was on site. I had originally wanted him to disable the buttons on the mortise lock because we thought my dad was activating it, locking the exterior latch, and preventing my parents' caregiver from entering each morning. Gal saved us a lot of money by explaining that all that was needed to be done was to turn the key one extra turn. Gal also adjusted the door because it was hard to close at times and smoothed out the caregiver's keys to make it easier to unlock the door. Gal did great work, but what really stood out to me is what a great quality human being Gal is. Not only was he understanding of the situation with me living so far away, but he showed the caregiver how to open the door if it's locked from inside, took a video of the process so I could share it with the caregiver in case she forgets, had us on speaker phone because the caregiver doesn't speak English so I could help translate. His patience and understanding is of the highest quality, saying that we will all be that age at some point. He was very respectful to my elderly dad and caregiver. Gal is highly recommended! I would use him again in a heartbeat!

    Mainline Security - locksmiths - Updated June 2026

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