Imagine your life without power. The conveniences you enjoy and the essentials you rely on are suddenly gone. No lights, no heat, no air conditioning. No sump pump to keep your basement dry. No refrigeration to keep your food from spoiling. But it doesn’t have to be that way. With a Generac GUARDIAN® Standby Generator installed by Generators of L.I., your power will return within seconds of an outage, keeping your home and your family safe and secure. Because it’s fully automatic, your GUARDIAN Standby Generator will produce electricity as soon as it senses a power outage - 24 hours a day, 365 days a year, even if you’re away. Unlike a portable generator, there are no switches to flip, extension cords to plug in or gas tanks to fill.

Generators of L.I. is equipped to handle all of your emergency and backup power needs. We provide reliable power protection for all applications from home to critical facilities. We offer complete sales, service and installation for all of our generator systems. We carry products from manufacturers including Generac/Guardian and Kohler. From these manufacturers, we offer their complete line of power generation equipment.

Generators of L.I. also have several master electricians licensed in several villages & towns, and we offer turn-key installations for all of our generator systems.

Janon G/C and Electric Corporation are the exclusive electricians for Generators of Long Island — a full-service sales, service & installation company focused on standby power systems for both commercial and residential applications. A one-stop shop for all of your generator needs.

  • Home / Residential Stand-by Generators

  • Commercial / Industrial Stand-by Generators

  • Propane & Natural Gas Generators

  • Service, Tune up's, Repairs, Engine Replacement

  • Load Bank Testing

  • Preventive Maintenance Contracts

  • Automatic and manual transfer switches

  • Certified Generac Tecnicians on staff

Call us today at 516-662-8441 or email us at generatorsoflongisland@verizon.net.

Scheduled Maintenance Program
Our expert technicians can maintain your system to ensure continual operation and compliance with your warranty:
  • Replace engine oil and air filters
  • Inspect fuel delivery system
  • Replace engine fuel filters
  • Clear and clean air vents
  • Examine battery posts and cables
  • Analyze battery charger
  • Inspect wire connections
  • Study belt tension - tighten or replace
  • Test engine and transfer switch safety devices
  • Exercise the unit at full rated load


Authorized Guardian Dealer