Audio and Video Services in New York City

Sound masking is the work in this section. It adds a low background sound at the frequencies human speech occupies, so voices at a distance stop resolving into words while staying audible as sound. Nothing is blocked and nothing is removed — what changes is how far speech carries its detail. Three pages below cover the technology itself, offices, and commercial properties.

Sound Masking and Speech Privacy

The starting point if you are working out whether this is the right answer at all. It covers how a system produces and distributes its signal, what one consists of — generator, zones, emitters, tuning — and why it is not the same thing as soundproofing or noise cancellation. It also covers what tuning does and why a system installed to a drawing and never adjusted is the usual reason people say masking did not work for them. Detail on sound masking systems.

Sound Masking for Offices

Open floors, private offices, and meeting rooms each need different handling. An open bay needs even coverage across the whole plate. A private office needs treatment in the corridor outside rather than inside the room, because most interior walls stop at the ceiling tile. A small suite needs a system sized for the space rather than cut down from a floor plan. Installation runs above the ceiling while people work. Detail on sound masking for offices.

Commercial Sound Masking

Clinics, bank branches, retail floors, pharmacies, and hotels raise the same problem in a different building — higher and often open ceilings with no plenum to hide emitters in, customers rather than staff needing the privacy, and hours that do not stop at six. Zones follow what each area does rather than which floor it sits on, and installation is scheduled so the space stays open. Detail on commercial sound masking.

Where We Work

We cover New York City and Brooklyn, along with Queens, the Bronx, Staten Island, and the surrounding areas within our service radius. Work in this section runs in offices and commercial floors, clinics and practices, retail and hospitality spaces, and multi-tenant buildings. Clients with several addresses can keep them under one contractor.

Warranty, Service Area, and Payment

Lock and Tech USA backs new installations with a 90-day mechanical warranty and a 12-month electrical warranty, covering both parts and labor. We provide installation within 75 miles of Midtown Manhattan and support extended zones, multiple locations, and multi-site service for clients with several properties. Phone and email support is available during business hours.

We accept cash, wire transfer, ACH, credit card, and check, as well as Zelle and Venmo, and we offer invoicing and business accounts for commercial clients. Depending on the size of the job, payment is typically a partial deposit up front with the balance collected on completion. Before starting, we require a signed contract and a tax exemption form if applicable.