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Verified Reviews for Generator Install pros in Vienna, GA

*The Angi rating for Generator Install companies in Vienna, GA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Vienna, GA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on May 21, 2026

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Avatar for EMH Electrical, LLC
EMH Electrical, LLC
4.4(
22
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Vienna, GA and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"They showed as agreed an they did a great job, would rehire again recommend emh electrical"
Response time1 day
Response rate95%
Recommended by95%of homeowners
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Avatar for Ross Knight Electric, LLC
Ross Knight Electric, LLC
4.9(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Vienna, GA and surrounding areas

In business since 1974

Free estimates

Emergency services offered

Ross Knight Electric, LLC is a family owned and operated business serving the Southwest Georgia community for over 40 years. We pride ourselves in honesty and hard work. Please give us a call today so we can put these qualities to work for you. We are licensed in Alabama and Georgia, and there is no job too big. We handle all types of residential and commercial jobs.

Response time3 days
Recommended by100%of homeowners
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Avatar for Northstar Electrical Contractors LLC
Northstar Electrical Contractors LLC
5.0(
2
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Vienna, GA and surrounding areas

In business since 2024

Free estimates

Small jobs welcome

"Professional and knowledgeable. Will refer them to anyone that needs quality work done."
Response time10 mins
Recommended by100%of homeowners
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Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)
Fixed Generator - Install

Serving Vienna, GA 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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Big Patriot Home Remodeling
New to Angi
Generator - Install - For Business

Serving Vienna, GA and surrounding areas

In business since 2020

Free estimates

Emergency services offered

Big Patriot Home Remodeling is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time20 mins
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Generator Install questions, answered by experts

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.

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 home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Vienna, GA homeowners’ guide to generator installs

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

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