Licensed NYC Low-Voltage Security Contractor
Unlimited Applications Security Company repairs, installs and upgrades intercoms, security cameras, access-control systems and alarms for apartment buildings, co-ops, condominiums, brownstones, homes, storefronts, offices and mixed-use properties across New York City.
Most common intercom and buzzer repairs are a $150–$250 flat rate with a 30-day repair warranty. Parts, concealed wiring, installations and larger upgrades are quoted separately. See what affects the price →
If an apartment buzzer will not ring, a door release will not unlock, cameras have stopped recording, a DVR or NVR will not play back footage, or a card or key-fob reader has stopped working, start with the affected system below. We troubleshoot the existing equipment before recommending repair, replacement or an upgrade.
Tell us the property and the system involved. Larger projects receive a free itemized estimate after an on-site review.
Start With the Problem
Choose the symptom that best matches what is happening now. These links lead to the service or troubleshooting information most relevant to that problem.
No ring, no audio, weak audio, one apartment offline, lobby-panel problems or a door that will not release.
Most common repairs: $150–$250 flat, 30-day repair warranty.
Troubleshoot an intercom or buzzer →
Intercom repair cost · Common intercom problems · How door buzzers work
Camera outages, DVR or NVR errors, hard-drive warnings, failed playback or remote-viewing problems.
Failed readers, controllers, relays, electric strikes, magnetic locks, credentials or door-release equipment.
Alarm-panel faults, sensors, communication problems, existing-system service or monitoring questions.
What We Do
Most buildings call about one system and end up needing two, because entry, video, credentials and detection share the same low-voltage wiring and door hardware. Each line below has its own service page.
Our highest-volume work. Apartment buzzers, lobby panels, telephone entry, video and IP intercoms, and the door-release equipment they depend on. Most common repairs are a $150–$250 flat rate.
Camera systems for entrances, lobbies, hallways, package areas, yards and commercial floors, sized to what the property actually needs to see.
Verified repair example: a Park Slope apartment building had live video but no recording; testing identified a storage-related failure, the Hikvision DVR hard drive was replaced with a 2 TB drive, and recording, playback and remote viewing were restored. View the 16-camera Park Slope DVR repair →
Controlled entry for buildings that need to manage credentials rather than hand out keys, from a single door to a multi-entrance property.
Intrusion detection and monitored protection for residential, commercial and mixed-use properties, including work on existing panels.
Who We Work With
A four-unit brownstone and a 90-unit co-op have different wiring, different door hardware and different approval processes. The work is scoped to the property, not to a package.
Multi-tenant entry, riser wiring, lobby panels and shared door-release equipment.
Board and managing-agent approvals, documented scope, coordination with building staff.
Two- to six-family entry systems, often with older wiring and discontinued equipment.
Doorbells, cameras, alarms and gate communication for single-family properties.
Controlled entry, camera coverage and after-hours protection for small commercial space.
Separate residential and commercial entrances sharing one low-voltage infrastructure.
Repeat service across multiple addresses under one management company.
Facilities needing coordinated entry, detection and video across several doors.
How a Job Runs
The same four steps apply whether the job is one stuck door release or a full camera and access-control installation.
Call with the address, property type, system brand if known and what the equipment is doing now. Many issues are narrowed down on the phone.
We check the equipment, accessible wiring, power and connected door hardware before quoting anything beyond a common repair.
Findings and price are explained first. Larger projects get a free itemized estimate you can circulate to a board or owner. No work starts before approval.
Work is completed and function-tested end to end. Qualifying repairs carry a 30-day repair warranty.
One Low-Voltage Path
In most NYC buildings the intercom, the camera at the entrance, the reader on the door and the alarm contact on the frame share wiring, power supplies and the same release hardware. A buzzer that rings but never unlocks may be a relay, a transformer, an electric strike or an access-control connection, and the fastest way to find out is to have one contractor who works on all four.
That also matters when a building upgrades. Adding a video intercom, putting a camera on the package area or replacing keys with fobs are separate projects that land on the same door. We review the whole entry path before recommending which part to change.
From Our Channel
Intercoms, access control, electric door hardware and cameras often share one entry path. The right solution depends on the installed equipment and the building's requirements. Watch the Short on YouTube →
Equipment and Systems
Service depends on the exact model, parts availability, wiring condition and equipment age. Brand names below help identify common systems; listing a brand does not imply manufacturer certification or affiliation.
Lee Dan, Aiphone, TekTone, Comelit, Akuvox, 2 Easy, DoorKing, Mircom, Urmet and 2N audio, video, telephone entry and IP systems.
Hikvision, Dahua, Axis, Hanwha, Bosch, Uniview and Lorex cameras, recorders, cabling and remote viewing.
Keypads, card and fob readers, magnetic locks, electric strikes, exit devices, relays, power supplies, alarm panels, keypads and sensors.
Where We Work
Queens is our home borough and our highest job volume, followed by Brooklyn, Manhattan, the Bronx and Staten Island. Service is also available in Nassau, Suffolk and Westchester counties, subject to scheduling and project scope.
Astoria, Long Island City, Forest Hills, Flushing, Jamaica and surrounding neighborhoods.
Queens service →Park Slope, Williamsburg, Bushwick, Bay Ridge, Canarsie, Flatbush and nearby areas.
Brooklyn service →Midtown, Harlem, Upper East Side, Upper West Side, Downtown and nearby locations.
Manhattan service →Riverdale, Fordham, Kingsbridge, Pelham Bay, Morris Park and surrounding communities.
Bronx service →St. George, New Dorp, Great Kills, Tottenville and nearby neighborhoods.
Staten Island service →Customer Feedback
“Amazing company, Wayne is the man. The product and level of service are top notch, the job was done right the first time, quickly, and he made sure everything was working 100%.”GM — Google Review
“My intercom was on the fritz. Wayne was knowledgeable, fair priced and very easy to work with.”TCM — Google Review
“Repair of a Lee Dan buzzer/intercom entry system for a 3-family building was done professionally and cost effectively.”Amy Strickland — Google Review
Direct Answers
Yes. Unlimited Applications Security Company is licensed, insured and bonded, and certified in alarm, CCTV, access control and intercom installation and repair, with more than 30 years of work in New York City buildings.
Most common qualifying intercom and buzzer repairs are a $150–$250 flat rate and include a 30-day repair warranty. Parts, concealed wiring, multi-unit failures, obsolete equipment, door hardware, installations and larger upgrades are quoted separately after review. See the full NYC intercom repair cost guide →
Beyond the five boroughs, service is available in Nassau, Suffolk and Westchester counties, subject to scheduling, travel and project scope. Confirm coverage for your address when you call.
Yes. We work with owners, boards, managing agents and building staff, and provide a written scope and itemized estimate that can be circulated for approval before work begins.
In most cases, yes. What matters is the equipment type, the condition of the existing wiring, whether parts are still available and whether the installed system is still supported by its manufacturer.
Yes. We service apartment buildings, co-ops, condominiums, brownstones and private homes, as well as storefronts, offices, mixed-use buildings and managed commercial properties.
Often, yes, when the systems are related. An intercom and its door release, or a camera and an access-control reader at the same entrance, are commonly reviewed together. Combining work depends on scope, parts and site access.
Intercoms, cameras, access control and alarms across New York City. Call for availability or send the details for an itemized estimate.
