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Verified Reviews for Generator Install pros in Republic, MO

*The Angi rating for Generator Install companies in Republic, MO 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 Republic, MO 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 March 21, 2026

Find Generator install pros in Republic

Avatar for NextGen Electric
NextGen Electric
4.7(
28
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Republic, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Hans was prompt returning my request for service, and showed up exactly on time. He installed my charging unit for my new hybrid in my garage where I wanted it, along with 2 surge suppressors for my 2 breaker boxes. After finishing the install, he cleaned up behind himself along with the leaves, etc. that had accumulated over the years. His price was fair and I'd definitely hire him for more work in the future. Nice young man to boot!"
Electrical Project
Electrical Project
Electrical Project
Electrical Project
Electrical Project

+43

Response time3 days
11 neighbors recently requested a quote
Recommended by68%of homeowners
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Avatar for NextGen Electric, LLC
NextGen Electric, LLC
4.8(
58
)
Fixed Generator - Install

Serving Republic, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Nextgen finished up a job that was started by another contractor. Finishing up where someone else left off can be challenging sometimes. These guys got right in and finished it up. I ll be calling them again"
New Ceiling Fan Box
New Ceiling Fan
Junction Box
Light Switches
Circuit Additions

+25

Response time12 hrs
Recommended by98%of homeowners
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Avatar for Electric Geek Squad
Electric Geek Squad
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Republic, MO and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"Very good customer service, friendly and knowledgeable. Would hire again."
Response time3 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
New to Angi
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Republic, MO and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game.\nWe provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

Response time1 day
Response rate100%
53 neighbors recently requested a quote
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Avatar for Griffis Power Systems, LLC
Griffis Power Systems, LLC
5.0(
12
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Republic, MO and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"Service was exceptional. Adjusted generator as needed. Fluent in answering questions about generation needed for my home and shop. Fast,friendly service with helpful advises. Will definetly reuse this provider for future repairs and installations.. 2 ?? up!! Thanks Darren!!"
Genset and ATS
Engine and generator
24 Kw generator
Genset installed
Honeywell Install 2

+25

Recommended by100%of homeowners
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Showing 1-10 of 29
Generator Install questions, 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 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 determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

The Republic, MO 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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