DSS installs, repairs, and upgrades intercom systems across Brooklyn, Manhattan, Queens, the Bronx, Staten Island, and Long Island. Our Comelit video intercom works alongside your existing intercom units, so tenants can see and talk to visitors straight from their cellphones, with no additional wiring.
We build custom security systems for single-family homes, brownstones, co-ops, and apartment buildings. From smart intercoms and door buzzers to HD surveillance cameras, DSS keeps your family and your tenants safe.
We install professional-grade equipment from Comelit, Aiphone, DNAKE, Akuvox, ButterflyMX, and DoorKing. With over 35 years of experience, DSS only installs technology we trust to work day after day.
DSS technicians are fully trained and certified to install and repair intercoms, security cameras, and access control systems. We follow strict safety standards on every job across the five boroughs and Long Island.
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Yes. Our Comelit video intercom upgrade requires no additional wiring and saves money by using your existing intercom units. Tenants keep their apartment units, and the building gets HD video, remote door release, and PIN code entry. Call us to learn more about our intercom products.
Featured Product
The Comelit Ultra Touch VIP Kit brings premium video entry to your building with a sleek Italian design. See and talk to visitors, open the door, and manage entry right from your phone. It’s a one-time investment with no monthly payment.
What sets DSS apart from the competition is simple: professional-grade equipment, affordable prices, and customer service that doesn’t end after the install. We repair what can be repaired and only recommend a replacement when it makes sense for your building.
Every job starts with a free quote, and we explain your pricing options and payment methods up front. Whether it’s a dead buzzer in a Brooklyn walk-up or a new video entry panel for an apartment complex in Queens, call us anytime and a DSS technician will walk you through your options.
Douglas Security System, Inc. (DSS) is an intercom and video surveillance company serving commercial and residential properties, including property management companies, multi-family housing, and single-family homes.
Headquartered in Brooklyn, New York, with over 35 years of experience in the security field, we take pride in providing quality services and solutions tailored to our customers’ needs throughout all five boroughs (Manhattan, Brooklyn, Queens, the Bronx, and Staten Island) and Long Island. Learn more about DSS. DSS is made up of five tightly integrated divisions:
We repair and install intercoms, security cameras, access control systems, smart locks, roof alarms, and door strikers, and we run network cable throughout the tri-state area.
Intercom repair: We repair existing intercoms, replace entry panels and apartment units, and fix dead buzzers, door releases, and wiring problems. Under the NYC Housing Maintenance Code, buildings with eight or more apartments built or converted after 1968 must keep a working intercom with two-way voice and door release, so we treat these calls as urgent (see our NYC intercom requirements guide).
Intercom installation and upgrades: We upgrade buildings to brand-new video intercom systems, both Wi-Fi and hardwired, with smartphone apps, PIN code entry, key fob access, and temporary codes for guests and deliveries.
Security cameras: HD and IP camera systems for residential houses and commercial properties, with a crystal-clear picture and cloud storage.
Access control and locks: Keypads, key fobs, smart locks, and door strikers for lobbies, offices, and storefronts. See all our services.
Brands we work with:
We work on private houses, office spaces, storefronts, apartment buildings, co-ops, and commercial properties. Residential or commercial, big or small, we handle it.
Property Manager
Douglas Security System installed a full CCTV and access control system at our family-owned retail store in Brooklyn. The installation was smooth, and the techs answered all our questions patiently. The quality of the cameras and user interface is top-notch. Best part? Their customer support after installation is just as great.
Business Owner
FAQ
Most single intercom repairs in NYC, like replacing one apartment unit or fixing a door release, cost about $250 to $600. Replacing a part such as an entry panel or power supply usually runs $500 to $1,500, and a dead lobby panel with a new transformer runs about $1,200 to $2,800. Wiring repairs in older buildings can cost $1,000 to $3,000. These are average NYC prices. We give you a free quote after we inspect your system, so you know the full price before any work starts.
Yes. Our Comelit video intercom works alongside your existing intercom units, so most buildings upgrade with no additional wiring. That keeps the job faster and more cost effective.
No. Our Comelit systems are a one-time investment with no monthly payment. Property management software and call-log servers are optional and sold separately.
Yes. With the Comelit app, tenants see visitors in HD video, talk to them, and open the door from anywhere. We can also set up temporary access codes for guests and deliveries.
Buildings with eight or more apartments built or converted after January 1, 1968, must have a working intercom with two-way voice and door release. We repair and replace intercom systems to keep buildings compliant.
We work with Aiphone GT and IP series, Comelit Ultra Touch, DNAKE, Akuvox, ButterflyMX, DoorKing, Linear, Leedan, Elvox, and 2Easy systems.
We serve all five boroughs (Manhattan, Brooklyn, Queens, the Bronx, and Staten Island), Long Island, and the tri-state area from our office at 1541 E 46th Street, Brooklyn, NY 11234.
Yes. We work on private houses, apartment buildings, office spaces, storefronts, and commercial properties.
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 send us a message. You can also reach us at (917) 250-0972. Your final price depends on a wire inspection of your entry panel and door striker.
Yes. Douglas Security System is licensed and insured, and our technicians install and repair intercom, camera, and access control systems across NYC and Long Island.
We hired DSS to upgrade the intercom and surveillance system across our apartment complex in Queens. The team was incredibly professional, punctual, and knowledgeable. Not only did they deliver exactly what we needed, but their pricing was very reasonable compared to other quotes we received. We feel much more secure now—highly recommended!