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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
27 neighbors recently requested a quote
Avatar for Power House Electric LLC
Power House Electric LLC
5.0(
19
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Waynesboro, MS and surrounding areas

Approved

Free estimates

Credit card accepted

"The folks at this business are amazing! They came next day to provide a quote, and he told me me that he could do what I wanted for about 5K, but he could get the project completed going another route for only 2K. How many businesses do you know that would be so upfront about what is best for your pocket. They came the next day and got everything done and yay I have electricity in my new building. 😊💕😊"
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

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.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.