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    Services - JNT Systems

    Home theater calibration

    Home theater installation

    Security monitoring services

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    Security system installation

    Security system repair

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    Mar Vista Security And Intercoms Systems - Doorking telephone entry.  extremely popular.we have direct factory support 310 409 9299

    Mar Vista Security And Intercoms Systems

    (22 reviews)

    Mar Vista

    Jack the owner is fabulous. He's professional and caring. He went out of his way to help my…read moreelderly parents.His knowledge and special attention to detail have made me feel secure with our alarm system.

    I recently contacted Mar Vista Security and Intercom Systems about upgrading our call box. My…read moreinitial plan involved spending around $3000 on new hardware and installation to go from land line to cell-based, plus dealing with an ongoing monthly bill of over $50. But Jack turned that around completely with some fantastic advice over the phone. Instead of pushing for an expensive upgrade, Jack recommended switching our land line provider from AT&T to Spectrum. This simple change would save us over $300 per month without needing to touch any of our existing equipment--and he didn't charge a dime for the consultation! We're talking $30 a month for a business landline with Spectrum versus the whopping $360 we were paying AT&T. Thanks to his pointer, Spectrum is coming out tomorrow to handle the switch and finally rid us of that overpriced service. What really sets Jack apart is that he was the only one out of several companies I contacted who actually suggested this smart solution. The others either ghosted me or tried to upsell unnecessary work. Jack's honesty and willingness to help, even if it meant no immediate business for him, speak volumes about his integrity. If we ever decide to upgrade the system or add cameras in the future, Mar Vista will be my first call. Highly recommend--5 stars all the way!

    JNT Systems - hometheatreinstallation - Updated May 2026

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