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Top-Rated Generator install pros in Fleming Island - Updated Nov 2026

Avatar for Colson's Electrical Services LLC
Colson's Electrical Services LLC
5.0(
30
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Fleming Island, FL and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"William was prompt, set expectations and followed through and educated us on the need for a Surge Protector. He came for a quote but was able to install the EV charger quickly and cleanly same day. He is very knowledgeable about the EV market and was in and out quickly. Great experience all around. Highly recommend!!"
21 neighbors recently requested a quote
Power & Control Installations, Inc.
4.3(
181
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Fleming Island, FL and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"Actually, Power and Control Installations did much more than install electrical switches, outlets and fixtures. They installed a new 20 amp breaker, and ran wiring 60 feet underground to my new shed. The electrician they sent out was very professional, courteous, and answered all my questions. The work was completed to my satisfaction. I would highly recommend this company to others."
Response time1 day
Response rate91%
9 neighbors recently requested a quote
Avatar for Bill Fenwick Plumbing, Inc.
Bill Fenwick Plumbing, Inc.
4.5(
789
)
Fixed Generator - InstallFixed Generator - Repair

Serving Fleming Island, FL and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

Bill Fenwick Plumbing, Inc. is a Jacksonville, Florida, business that has been offering service to its customers for 40 years. We are a customer-oriented company that arrives on time, uses only quality parts and does the work right the first time. \n \nWe value your opinion and realize that you may have additional questions. Please take a moment to complete our form for more information, quotes, or appointments, and someone from our staff will contact you as soon as possible.

2 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Trademark Electric
Trademark Electric
New to Angi
Fixed Generator - Install

Serving Fleming Island, FL and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

Trademark Electric was founded in 2012 & has grown into being one of Generac’s top Power Pro Prestige Dealers in Florida. We are a state-certified electrical contractor, with Generac certified technicians who are qualified to install, service and handle warranties on both residential and commercial Generac Generators. Our office staff are educated and ready to assist with any of your generator needs from scheduling your FREE consultation, to permitting & installation, to maintaining the longevity of your unit.

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+26

38 neighbors recently requested a quote
The Generator Guys
4.8(
13
)
Fixed Generator - InstallFixed Generator - Repair

Serving Fleming Island, FL and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"Nationwide is a tried and true company... taking us from installation and coordination with gas company etc ...to biannual maintenance/ checkup...now our go to for anything related to General and anything electrical (4 years and counting!) From scheduling to always consistent with wonderful staff from office to the field."
Response time2 days
Response rate100%
10 neighbors recently requested a quote
Avatar for Generx Generators
Generx Generators
4.5(
246
)
Fixed Generator - Install

Serving Fleming Island, FL and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Totally happy. Just had my Generator hook-up today and everything went well. I would recommend them. Communication was excellent from the time I asked for a quote. They were on time that day for the quote and showed up on time for each faze of the installation. They left the work area as clean as when they found them. Totally Happy."
Generac 20kw
Setting a large commercial generator gently in pl
We're the #1 Generac home standby installer
Flood zones require elevated generator platforms
Generac 22kw

+4

5 neighbors recently requested a quote
Recommended by94%of homeowners
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Generator Install FAQs, answered by experts

Costs range from $500 to $2,500, depending on generator type and installation complexity.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

The Fleming Island, FL homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.