Top-rated generator install pros.

Get matched with top generator install pros in Madison, AL

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Madison, AL?

Select your specific project to find the pro for you.

Find Generator install pros in Madison

Avatar for Mr. Electric of Huntsville
Mr. Electric of Huntsville
4.5(
95
)
Fixed Generator - InstallFixed Generator - Repair

Serving Madison, AL and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"This was the first time I used Home Advisor to find a contractor. Home Advisor linked me with Mr. Electric who did an outstanding job. They were on time, on budget, courteous, professional, and totally a pleasure to work with. Thomas installed a 50 and 30 amp service for us at our property servicing two RV lots as well as installed a power pole with a meter box for the power company to tie into. Jan was a pleasure to work with as she was the voice for the company dealing from everything from scheduling to invoice as well as general questions. Jan was very pleaseant and professional. We will use Mr. Electric in the future and highly recommend their service..."
EV Charger Install
EV Charger Install
Electrical Upgrade in Home Shop
panel upgrade
panel upgrade

+15

54 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for PrimeHomeServices, LLC
PrimeHomeServices, LLC
5.0(
26
)
Fixed Generator - Install

Serving Madison, AL and surrounding areas

Approved

In business since 2025

Credit card accepted

Offers commercial services

"I am the clerk for the Town of Hytop. Hunter added a 50 amp circuit in our town's community center and added a pipe heater circuit to guard against freezing pipes. He was efficient and prompt. We are pleased with his work and would recommend him to anyone."
Panel Upgrades & Refurbs
Panel Upgrades & Refurbs
Panel Upgrades & Refurbs
Panel Upgrades & Refurbs
Lighting

+32

15 neighbors recently requested a quote
Avatar for APS Lighting and Electrical LLC
APS Lighting and Electrical LLC
5.0(
5
)
Fixed Generator - Install

Serving Madison, AL and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"This is our go to electrical contractor for all of our commerical projects. They communicate clearly, arrive on time, and complete everything efficiently and professionally with quality always in mind. Their attention to detail and reliability always help the projects to run smoothly. Can’t recommend them enough for whatever you need done!"
28 neighbors recently requested a quote
Avatar for Hiller Plumbing, Heating, Cooling, & Electrical
Hiller Plumbing, Heating, Cooling, & Electrical
4.5(
38
)
Fixed Generator - InstallFixed Generator - Repair

Serving Madison, AL and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Small jobs welcome

Hiller Plumbing, Heating, Cooling, & Electrical, established in 1990, stands for quality and reliability. With our 'Happy You'll Be or the Service is Free' guarantee, we are dedicated to customer satisfaction in Huntsville and the surrounding communities. Our plumbers provide emergency repairs, sewer line service, and expert installation or repair of water heaters. Our HVAC specialists ensure your comfort with preventative maintenance, air conditioning and furnace repairs, for year-round comfort. Our licensed and insured electricians offer prompt emergency response, custom upgrades, and safe, thorough electrical fixes for both residential and commercial properties. Hiller is your trusted provider for all your home service needs.

7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mobile Mx, LLC
Mobile Mx, LLC
3.7(
3
)
Fixed Generator - RepairGenerator - Repair - For BusinessPortable Generator - Repair

Serving Madison, AL and surrounding areas

Approved

In business since 2023

Emergency services offered

Small jobs welcome

With years of experience in the Appliances industry, Mobile Mx, LLC is your industry expert in Huntsville. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!\n\n

Carburetor Float Bowl
Air Filling Chuch
Response time4 hrs
Recommended by50%of homeowners
Avatar for Southern Gentlemen Lawn Care
Southern Gentlemen Lawn Care
New to Angi
Portable Generator - Repair

Serving Madison, AL and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

Southern Gentlemen Lawn Care & Home Services provides reliable, professional lawn care, property maintenance, and small home improvement services for homeowners. Our services include routine mowing, edging, weed-eating, blowing, seasonal yard cleanup, and general property upkeep. We also take care of those smaller handyman projects and home maintenance tasks that homeowners may not have the time, tools, or expertise to handle themselves.\n\nFrom keeping your yard looking its best to taking care of the little things around your home, Southern Gentlemen is here to help keep your property looking great and working the way it should.

Work in Progress!
Work in Progress!
Work in Progress!
Work in Progress!
Work in Progress!

+12

1 neighbors recently requested a quote
Avatar for Titan Electrical Contractors, LLC
Titan Electrical Contractors, LLC
5.0(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Madison, AL and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"installed upgraded fuse box from 100 to 200 amp also installed 30 amp box for motor home connection. on time and great customer service to include inspection of completed work. estimate and costs were better than expected. so glad to have TEC do the work will use again for electric work. Thank you TEC!!!"
Greenway Chevy
Grace Life Church
Grace Life Church
Greenway CDJR
SKF Bearings

+5

Response time4 hrs
Recommended by100%of homeowners
...
Showing 1-10 of 54
Generator Install questions, answered by experts

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

The Madison, AL homeowners’ guide to generator installs

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