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Top-Rated Generator install pros in Waynesboro - Updated Nov 2026

Avatar for Quality Construction & Engineering
Quality Construction & Engineering
4.6(
32
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Waynesboro, MS and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Quality Construction Engineering did an outstanding job installing the generator at my home! I truly appreciate their professionalism, quality workmanship, and attention to detail. Having backup power gives me and my family added peace of mind, and I’m so pleased with the installation. Thank you for a job well done! I highly recommend Quality Construction Engineering to anyone looking for quality generator installation."
Generac Generator
26 neighbors recently requested a quote
Avatar for Power House Electric LLC
Power House Electric LLC
5.0(
18
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Waynesboro, MS and surrounding areas

Approved

Free estimates

Credit card accepted

"Powerhouse Electric was very professional and did a great job on my front porch light fixtures. I was contacted right away with an appointment Joey the Technician came out on time, finish the job and clean up after. He may sure that I was satisfied with the outcome before he left.I would definitely recommend Powerhouse for all my electrical needs!"
Generator Install
Generator Install
RV Shed
Ceiling Fan Installation
Ceiling Fan Installation

+5

7 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

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.

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

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. 

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

The Waynesboro, MS homeowners’ guide to generator installs

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