Service & panel upgrades
Load calculations, panel replacement, meter and service coordination, grounding, surge protection, and added capacity for renovations, HVAC, kitchens, pools, and other major loads.
Discuss this service ↗Nassau County electrical services
Electrical upgrades, troubleshooting, EV charging, backup power, lighting, and connected-property infrastructure for Nassau County homes and businesses.
Our services
From a tripping circuit to a property-wide modernization, we identify the requirement, account for existing capacity, and define the work before installation begins.
Load calculations, panel replacement, meter and service coordination, grounding, surge protection, and added capacity for renovations, HVAC, kitchens, pools, and other major loads.
Discuss this service ↗Fault diagnosis, dedicated circuits, lighting, controls, equipment connections, tenant improvements, and electrical support for offices, retail spaces, facilities, and multifamily properties.
Discuss this service ↗Service-capacity review, charger circuits, equipment placement, power routing, and scalable charging plans for homes, workplaces, fleets, and shared parking areas.
Discuss this service ↗Critical-load planning, generator and battery connections, transfer equipment, surge protection, and resilient power for essential property systems.
Discuss this service ↗More capabilities
Interior, exterior, landscape, security, occupancy, daylight, and energy-saving lighting systems.
Dedicated power and disconnects for HVAC, pumps, kitchens, workshops, offices, and property equipment.
Electrical and low-voltage coordination for cameras, access control, networks, sensors, automation, and condition monitoring.
Connected service network
Electrical Nassau connects property owners and facilities teams to focused tools for equipment identification, hot-water systems, and broader repair intake. Choose the route that matches what you know today.
Identify an existing circuit breaker by manufacturer, part number, series, photo, or panel information—and request help sourcing hard-to-find or discontinued equipment.
Identify or source a breaker →Start with practical boiler and tankless-water-heater troubleshooting, then request help with power, controls, equipment replacement, or a site-specific hot-water problem.
Get hot-water help →Document the property, asset, symptoms, photos, and service history in one place when the problem extends beyond a single electrical task.
Start a service request →Not sure which route fits? Call 516-400-6149 or email info@lumenstechnology.com and describe the property, equipment, or symptom.
How service starts
Tell us what you know. We will help determine what must be reviewed before the work is scheduled.
Call or email the address, symptoms or planned equipment, photos, and timing. Limited information is acceptable.
We identify the likely circuits, service capacity, access, equipment, permitting, and coordination requirements.
We explain the recommended visit or work, priorities, options, and information still needed before scheduling.
Nassau coverage
Coverage is based on project scope and scheduling. If your community is not shown, call to confirm availability.
View all service-area pages →Project questions
Electrical Nassau supports single-family homes, estates, multifamily buildings, offices, retail spaces, facilities, and active renovation projects throughout Nassau County.
Yes. We review the existing service, connected loads, planned equipment, and available panel capacity before recommending a panel change, service upgrade, load-management approach, or dedicated circuit.
Send the property address, a short description of the issue or planned work, photos of the panel or equipment when available, and your preferred timing. If you only have limited information, call us and we will help identify what is needed.
We serve Great Neck, Manhasset, Roslyn, Old Westbury, Garden City, Port Washington, Jericho, Syosset, Hewlett, Rockville Centre, Mineola, and surrounding Nassau County communities, subject to project scope and scheduling.
Start your request
Send the address, issue or planned upgrade, photos if available, and the best way to reach you.