Generator Services in Westchester County, NY

Since 1981: Standby Generator Installation, Repair and Maintenance For Homes and Commercial Facilities

National Standby Repair Inc. provides residential and commercial generator services throughout Westchester County. Since 1981, our family and veteran-owned company has helped homeowners, property managers, facility directors, and business owners prepare for outages and keep backup power systems ready. We install, repair, and maintain generators from Generac, Kohler, Cummins, Briggs & Stratton, WINCO, and many other manufacturers. Call us to schedule a free installation assessment, routine service, or emergency generator repair. Whether you live in White Plains, Yonkers, New Rochelle, Peekskill, or elsewhere in the Tri-State area, we are here to help.

The Home and Commercial Generator Experts in Westchester

Home Generator Services

A whole house standby generator can keep your heating system, refrigerator, well pump, sump pump, lights, internet equipment, and selected appliances running when utility power fails. Larger systems may also support central air conditioning, electric cooking equipment, and most circuits throughout the home.

We help homeowners in White Plains, Scarsdale, Rye, Bedford, Yorktown, and surrounding communities choose generators based on their electrical demand, fuel supply, property layout, and outage priorities. Our team can assist with new generator sales, installation, replacement, repairs, annual maintenance, transfer switches, batteries, and system testing.

Commercial Generator Services

Commercial properties often depend on backup power for much more than lighting. Office buildings may need to support servers, security systems, elevators, access controls, HVAC equipment, and building pumps. Medical facilities, schools, apartment buildings, restaurants, warehouses, and industrial properties may have refrigeration, communications, process equipment, life-safety systems, or large motor loads that cannot remain offline for long.

We service commercial generators throughout Westchester County, including Yonkers, New Rochelle, Mount Vernon, Peekskill, Harrison, and nearby areas. Our technicians work with natural gas, propane, and diesel systems in a range of voltages and capacities.

Standby Generator Installation and Replacement

Every installation begins with an on-site assessment. We review the electrical service, fuel availability, possible generator locations, transfer-switch requirements, service access, and the equipment you want to power. We also account for motor-starting demand from air conditioners, pumps, elevators, compressors, and other large loads.

After the assessment, we recommend a generator and provide a detailed quote covering the equipment and anticipated installation work. Depending on the property, the project may include a prepared pad, gas piping, electrical work, permits, delivery, startup, and testing. We also show you how the system operates and what to expect when utility power goes out.

Licensed and Certified Across Brands

Generac Services in Westchester

Generac is one of the most common standby generator brands in Westchester County. We install and service air-cooled Guardian Series units, larger liquid-cooled systems, automatic transfer switches, load-management equipment, and remote monitoring components.

Our technicians can diagnose failure-to-start conditions, low-voltage problems, battery and charging issues, controller faults, transfer-switch malfunctions, fuel problems, and other common Generac concerns. We also provide scheduled maintenance and can help you determine whether an aging unit should be repaired or replaced.

Kohler, Cummins and Other Generator Brands

National Standby Repair works with Kohler, Cummins, Briggs & Stratton, WINCO, Onan, Caterpillar, ASCO, Kubota, Olympian, Siemens, Baldor, Volvo Penta, and many other generator and transfer-switch manufacturers.

Different brands use different controllers, engines, alternators, monitoring systems, and diagnostic procedures. Our factory-trained technicians understand how to evaluate the complete system rather than replacing parts based on guesswork. We can also perform certified warranty repairs for several major manufacturers.

Generator Repair and Maintenance

24/7 Emergency Generator Repair in Westchester

A generator problem rarely appears at a convenient time. The unit may fail to start during a storm, shut down under load, display a warning, leak fluid, produce unstable voltage, or run without transferring power to the building.

National Standby Repair provides 24/7 priority emergency service for contract customers throughout Westchester County. Our technicians inspect the generator, controller, starting system, fuel supply, transfer switch, and connected components to find the cause of the failure. We arrive prepared to repair many common problems and explain any larger work the system may need.

Commercial and Residential Generator Maintenance

Regular service gives your generator a better chance of operating correctly when the utility fails. Maintenance may include an oil and filter change, battery testing, coolant and belt checks, spark-plug service, leak inspections, controller review, transfer-switch testing, and confirmation of the exercise schedule.

Commercial and diesel systems may also require load bank testing, fuel sampling, fuel filtration, or fuel polishing. Diesel can collect water, sediment, and microbial contamination during long storage periods, even when the generator receives routine engine service. Our Annual Service Contracts are tailored to the equipment, operating environment, and importance of the systems it supports.

FAQs About Generator Services

How Often Should a Standby Generator Be Serviced?

Most standby generators should receive professional maintenance at least once a year. Systems that run frequently, operate in demanding conditions, or protect commercial facilities may need service more often. The manufacturer's maintenance schedule, engine hours, fuel type, and operating history all affect the proper interval.

Can You Repair a Generator You Did Not Install?

Yes. National Standby Repair services generators installed by other contractors, provided the equipment and location can be serviced safely. We work on most major residential, commercial, and industrial brands and can inspect the generator, transfer switch, fuel system, and related controls.

Do You Install Both Natural Gas and Propane Generators?

Yes. We install generators that operate on natural gas or liquid propane, along with diesel systems for many commercial and industrial applications. Fuel availability, expected runtime, generator capacity, storage, and the property's existing utilities will influence our recommendation.

Do You Service Commercial and Industrial Generators?

Yes. We service generators for office buildings, healthcare facilities, schools, apartment properties, retail locations, warehouses, industrial operations, municipalities, and other commercial sites. Our capabilities include maintenance, repairs, load bank testing, transfer-switch service, fuel testing, and emergency response.

Do You Serve Areas Outside of Westchester County?

Yes. In addition to Westchester County, National Standby Repair serves the lower and mid-Hudson Valley, western Connecticut, North Jersey, New York City, and surrounding areas. Our regular territory includes Putnam, Dutchess, Rockland, Orange, and other nearby counties.

Call for Generator Repair or Installation in Westchester

Whether you need a new home standby generator, commercial backup power, annual maintenance, or help with a system that will not start, National Standby Repair is ready to help. We bring more than four decades of generator experience to properties throughout Westchester County and the surrounding region. Contact us today to schedule a free installation assessment, request routine service, or arrange generator repair.