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Avatar for A-1 Florida Electric Contractor Corp.
A-1 Florida Electric Contractor Corp.
4.6(
50
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Madison, FL and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"They are incredible!! They are by far the nicest, most conscientious electricians I've ever worked with. They're honest and get the job done. We had a major panel upgrade and they handled the whole thing from planning to permits. They were at our house for the inspection and handled the whole process. Not only that, they were friendly and got back to me right away when I had a question. They then followed up with me when the project was done to make sure all went well and if I needed anything else. These folks are THE BEST!!"
Meter Installation
Rv 50 Amp Hookup
Commercial Electrical Panel and Gutter
Commercial Job
Electrical Desconective 600 amp

+7

Response time2 days
3 neighbors recently requested a quote
Recommended by85%of homeowners
Trademark Electric
New to Angi
Fixed Generator - Install

Serving Madison, 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.

Photos
Photos
Photos
Photos
Photos

+26

44 neighbors recently requested a quote
OCC Industrial Services
5.0(
1
)
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Madison, FL and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

At OCC Industrial Services, we pride our company on reliability, communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your project. We look forward to earning your business.

Response time11 hrs
Recommended by100%of homeowners
Avatar for Generx Generators
Generx Generators
4.5(
246
)
Fixed Generator - Install

Serving Madison, 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

134 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Conde Electric, LLC
Conde Electric, LLC
4.3(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Madison, FL and surrounding areas

In business since 2014

Free estimates

Credit card accepted

Conde Electric, LLC, is the only name you need to know for all of your electrical needs. We take pride in delivering our clients with the highest quality service. We are not satisfied until you are! Give us a call today! (352) 505-6100

Sunterfiel
Gainsvilles
bushnell
Response time40 mins
Recommended by100%of homeowners
Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)
Fixed Generator - Install

Serving Madison, FL and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

Today, we're proud to be the world's largest home improvement retailer. In 2,300 stores across North America, we aspire to excel in service – to our customers, associates, communities and shareholders. That's what leadership means to us. That's The Home Depot difference.

Generators
Generators
Generators
Generator
Generators

+5

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Generator Install questions, answered by experts

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

The Madison, FL homeowners’ guide to generator installs

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