Generator Installation in Fleming Island, FL
When George Fleming received his Spanish land grant on the St. Johns, he named it Hibernia; the island later took his family’s name, and the old homestead still goes by Hibernia. We install and service standby generators on Fleming Island from our nearest facility, within our Jacksonville service area.
Fleming Island Outage History
Why Fleming Island Homeowners Act
Fleming Island's recent storm record runs through Clay Electric. Hurricane Nicole left 7,641 of the cooperative's Clay County members without power in November 2022; Hurricane Helene left 32,726, over a third, in September 2024, and Hurricane Milton another 4,555 two weeks after that.
Fleming Island at a Glance
Power Outage Profile
The local details that shape your install: who runs the grid, who issues the permit, and which gas partners are in your area.
Clay Electric Cooperative covers most of Clay County and runs its Orange Park district office at 734 Blanding Blvd.
As unincorporated land, Fleming Island permits through Clay County's Building Division. GenerX pulls the permit with a licensed electrician and schedules the inspections. You sign the NOC.
Fleming Island is in the Peoples Gas Clay County service area. Off the main, propane.
In November 2022, six weeks after Ian, Hurricane Nicole left 7,641 Clay Electric members in Clay County without power.
Why Fleming Island Chooses GenerX
What Makes Us Different
No Subcontractors
Fleming Island installs are handled by GenerX employees only: electricians, gas specialists and crew. You get one point of accountability.
Unique in the Fleming Island Market
12-Year Warranty
Twelve years of Power Plus coverage on parts and labor for every Generac air-cooled unit we install with nothing added to the price, backed by the GenerX service department.
12 Years of Full Coverage
Storm-Ready Service Fleet
After a storm, technicians from Florida's largest service tech fleet head up to Fleming Island.
Warehouses in FL & TN
Typically 30 to 90 days from estimate to power on, depending on Clay County permit timelines. GenerX pulls the permit with a licensed electrician; you provide a signed Notice of Commencement and a property survey. See all six differentiators and the full process on the Jacksonville page ›
Fleming Island Pricing
What Does a Generator Cost in Fleming Island?
Whole home installs in the Jacksonville area typically run $7,000 to $25,000+. Here's where most Fleming Island homes land.
Essential circuits (lights, fridge, AC unit)
Most homes under 3,000 sq ft (full house)
Larger homes, multiple HVAC zones
Large homes, home offices, medical equipment
Prices include equipment, in-house installation, transfer switch, permit fees, and our 12-year warranty on every Generac air-cooled unit we install. Where a Peoples Gas main reaches your street, a natural gas connection typically adds minimal cost compared with a propane tank installation.
Because GenerX employs all labor in-house, we eliminate the third-party markup that drives up installation costs elsewhere. Our buying volume as Florida’s largest dealer means we get better equipment pricing than smaller dealers. The result: a higher-quality installation at a more competitive price, not a trade-off.
Jacksonville Hub
Part of Our Jacksonville Region
Full pricing guide, Generac vs. Kohler, and the complete regional FAQ.

Also Serving Near Fleming Island
Orange Park
View Orange ParkMiddleburg
View MiddleburgFernandina Beach
View Fernandina BeachGreen Cove Springs
View Green Cove SpringsAlso serving the rest of Clay County.
Frequently Asked Questions
Fleming Island Generator Questions, Answered
Is Fleming Island its own city?
No. To the Census Bureau it is a census designated place inside unincorporated Clay County, which means the county Building Division issues generator permits through its Citizens Access Portal. GenerX pulls the permit with a licensed electrician and schedules the inspections. You sign the Notice of Commencement and give us a property survey.
Is Fleming Island on Clay Electric?
For most homes, yes. The Florida PSC’s Helene report puts 91,337 of Clay County’s 101,538 customers on Clay Electric Cooperative, with JEA, FPL and Green Cove Springs Electric covering the remainder. Check your bill; our transfer switch works with each of them.
Can a Fleming Island generator run on natural gas?
Where a Peoples Gas main passes the house, yes: the utility lists Fleming Island in its Clay County area. Homes off the main use a propane tank, and we settle which at the free estimate.
Do Fleming Island HOAs review generator installs?
Expect the board to ask for the plan. We provide it: the site plan, a sound rating for the unit and the screening approach.
How fast can GenerX reach Fleming Island for repairs?
Fleming Island is served from our nearest facility. Call 24/7 for repairs; in a large outage, technicians come up from our other Florida locations.
Get Started
Prepare Now Before the Next Hurricane
Free Fleming Island estimate. We pull the Clay County permit, install the generator and look after service.