Commercial Electrician in Nassau County, NY
All Done Electric Works does commercial electrical work in Nassau County for offices, shops, restaurants and small industrial space: panel and service upgrades, tenant build-outs, lighting, dedicated equipment circuits and emergency repairs. Commercial jobs add steps residential ones do not. PSEG Long Island needs a load letter for every commercial service, and the Nassau County Fire Marshal regulates fire alarm and emergency-lighting work.
What we do for Nassau businesses
- 1Tenant build-outs and renovations: power, lighting and equipment circuits for a new or changed space, including electrical demolition, where we trace and label circuits and cap what is not reused before anything comes down.
- 2Panel and service upgrades, including three-phase service where the building has it.
- 3
Lighting: new fixtures, LED retrofits and controls. See our lighting installation page.
- 4Dedicated circuits for kitchen equipment, medical or retail equipment, signs, server closets and rooftop or split-system AC disconnects, each sized to the equipment’s nameplate.
- 5Emergency and exit lighting, installed and ready for the annual test.
- 6
Backup power for a business. See our generator installation page.
- 7
Repairs, safety checks and urgent calls. See our emergency electrician page.
- 8
EV charging for a business or a building, covered on our EV charger page.
PSEG Long Island needs a load letter, and there is no shortcut
For a residential service up to 200 amps, PSEG Long Island has a streamlined procedure called CONNECTS. It does not apply to commercial services, multi-metered buildings or three-phase service. For every commercial service, and for any service of 400 amps or more, the electrician completes a load letter that tells PSEG what the building will draw. We prepare that before the upgrade is scheduled so it does not hold up your reconnection date.
The Fire Marshal handles fire alarm and emergency lighting
The Nassau County Office of the Fire Marshal licenses fire and life-safety contractors and permits fire alarm systems. Under the county’s Fire Prevention Ordinance, emergency lighting and generators are tested annually with the Fire Marshal’s office present: emergency lights must run for at least 90 minutes, and an emergency generator must pick up the load within 10 seconds. If your building has either, we plan the electrical work around that test, and units that are dim or fail it get replaced.
Town and village rules still apply on top
Electrical licensing and permits in Nassau run through the towns and villages, and inspection goes through private agencies the town has approved. Some villages ask for specific paperwork: Garden City, for example, wants workers’ compensation and disability certificates, not standard ACORD forms. Where a permit is required, we can obtain it. Many buildings also have landlord rules, from approved contractors to after-hours access, and we ask for them before we price the job.
Questions Nassau business owners ask us
Often the disconnect and circuit need to be checked against the new unit’s nameplate, and sometimes replaced. A weatherproof disconnect has to sit within sight of the unit.
Yes. A planned check covers panel and breaker connections for heat damage, GFCI devices, emergency lighting and grounding, and ends with a written list of what we found, from urgent to routine.
PSEG Long Island runs programs for business EV charging, and the amounts and rules change. Check its current program pages, and we will help you through the application.
Where your town or village requires a permit, we can obtain it. Some villages ask for specific insurance or workers’ compensation paperwork, so we collect that requirement first. Larger build-outs may also involve the Fire Marshal.
It depends on the job. A panel swap behind the meter is shorter than a service upgrade that needs PSEG Long Island to disconnect and reconnect. Long planned outages have to be requested at least 10 business days ahead, so we set the date early and tell you the expected outage before we start.
Under Nassau County’s Fire Prevention Ordinance, emergency lighting and generators are tested each year with the Fire Marshal’s office present. Emergency lights must run at least 90 minutes, and a generator must pick up the load within 10 seconds. Ask us to check yours before the date.
A private inspection agency approved by your town or village inspects the electrical work. Fire alarm systems are separately permitted by the Nassau County Fire Marshal. PSEG Long Island needs the inspection certificate before it connects or reconnects a new or changed service.
No. CONNECTS covers single-family, single-phase residential services up to 200 amps on an existing overhead socket-meter service. Commercial, multi-metered, three-phase, underground and larger services follow the full process.
Yes. PSEG Long Island requires a load letter for every commercial service and for any service of 400 amps or more. The electrician completes it, and it tells PSEG what the building will draw so the service and transformer can be sized.
Talk to us about your space
Tell us the type of business, the size of the space and what you are changing, and we will tell you what PSEG Long Island, the Fire Marshal and your town or village will need before we price it. Our Nassau County electrician page lists every area we cover.