Long Island
Douglas Security System (DSS) serves Long Island as well as the five boroughs. From single-family homes and garden apartment complexes to co-ops, offices, and storefronts, we install and repair intercom and security systems for properties across Long Island, with over 35 years of experience in the New York area.
If you’re replacing an old buzzer, adding video and phone access, or securing a building entrance, we’ll inspect your property and give you a free quote. Call (212) 262-2820 to get started.
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Many Long Island properties have gates, long driveways, or separate buildings, which changes how an intercom should be designed:
We plan the layout on-site and give you a clear quote before any work starts.
See all of our services.

For homes, a video door station like the Aiphone JP-DV with an indoor monitor and app access is a simple, reliable setup. For garden complexes and co-ops, the Comelit Ultra Touch gives residents touch screen entry and phone access, and our Comelit systems are no monthly fee systems. For offices and commercial buildings, we pair the intercom with a keypad like the Aiphone AC-10S keypad and security cameras at the entrance. Buildings that want cloud management can use the DNAKE S617.

Prices depend on the building, the number of apartments and entrances, and the condition of the wiring. Most single repairs, like replacing one apartment unit or fixing a door release, cost about $250 to $600. A video intercom for a small building with one entrance typically costs about $4,000 to $5,000 or more. These are average New York prices, not a fixed price list. See our intercom cost guide for more detail, and ask about our no monthly fee systems.
New York City’s intercom rules come from the state Multiple Dwelling Law, which applies to New York City. On Long Island, requirements for multi-family buildings depend on the local town or village and on state codes, so the rules for your building may be different. If you manage buildings in the city too, see our guide to NYC intercom requirements.
We work with properties across Long Island. Communities we serve include:
For properties farther east in Suffolk County, call us first to confirm scheduling. We’ll let you know right away if your address is in our service area.
We also serve Brooklyn, Manhattan, Queens, the Bronx, and Staten Island.
Yes. We install and repair intercoms for homes, apartment buildings, co-ops, offices, and storefronts across Long Island.
We serve Nassau and Suffolk County communities, including Hempstead, Garden City, Valley Stream, Freeport, Long Beach, Great Neck, Hicksville, Huntington, and more. Call to confirm your address.
Yes. We install gate call boxes with remote door or gate release, designed for the distance between the gate and the house.
Not directly. The Multiple Dwelling Law’s intercom rules apply to New York City. On Long Island, requirements depend on the local town or village and on state codes.
Yes. We install video intercoms tied to keypads, card readers, and cameras so offices can screen visitors before unlocking the door.
Yes. We serve many Suffolk County communities as well as Nassau County. Call us with your address and we’ll confirm scheduling.
Yes. With an app-enabled system, you can see visitors at the gate, talk to them, and open the gate from your phone.
It depends on the number of doors, monitors, and whether you need a gate station. A simple video door station with one indoor monitor costs much less than a gate system with several monitors. We quote each home after a free inspection.
Most single repairs cost about $250 to $600, and a video intercom for a small building with one entrance typically costs about $4,000 to $5,000 or more. These are average New York prices. We give you a free quote after an inspection.
In many buildings, yes. Our Comelit video intercom works alongside existing intercom units, so you can add video and phone access without rewiring the whole building.
Not with our Comelit systems. They’re a one-time investment with no monthly payment. Property management software and call-log servers are optional and sold separately.
On Comelit video intercom installs, we offer a 3-year guarantee on Comelit material and a 1-year guarantee on service and labor.
Call (212) 262-2820 or use the form on this page. Tell us about the property and what isn’t working, and we’ll schedule an inspection.