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Avatar for Randolph Electrical Contracting
Randolph Electrical Contracting
4.9(
41
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Greenville, MO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Very pleased with this contractor and the cost and quality of their work. Upgraded my panel to 200 Amp service, split an overloaded circuit, and ran a line set for an HVAC project. Max and his team are real pros. The cost estimate was fair and accurate. After initial review of the project, we made a few changes on job day, and these were accomplished with zero problems. Their coordination with the electric co-op was also flawless and the job was accomplished on time and within the cost estimate. They even gave me a $100 credit for the removed 100 Amp panel. I plan to hire them again to wire an existing out building on my property. If you need electrical work, call them!"
400 amp Ameren meter base
Washer/Dryer Outlets
New Hot water Heater
Main Panel
Meter base and Mast

+2

Response time5 hrs
Response rate91%
9 neighbors recently requested a quote
Longhibler & Sons
3.6(
5
)
Portable Generator - Install

Serving Greenville, MO and surrounding areas

In business since 2016

Free estimates

Longhibler & Sons 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 time5 days
Recommended by80%of homeowners
All About Electric
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Greenville, MO and surrounding areas

In business since 2010

Free estimates

Warranties offered

Welcome to All About Electric!! We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

Strickland Electric
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Greenville, MO and surrounding areas

In business since 2014

Free estimates

Credit card accepted

With over 10 years of experience in the electric industry, we are the experts you need to take care of your home or business. We handle panel upgrades to additions and remodels. We will treat your home as we would treat ours. Give Strickland Electric a call today we look forward to working with you!!

Fitzgerald Electrical Services -
New to Angi
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Greenville, MO and surrounding areas

In business since 2009

Free estimates

Emergency services offered

Fitzgerald Electrical Services is an obvious choice for all your electrical needs. We have the power to perform and can handle any job from computer networking to electrical wiring and panel upgrades for a remodel or addition. We are experts in the installation of in-ground pools and can also assist with repair work associated with your swimming pool and the accessories and equipment. Free Estimates within 30 min drive We proudly obtain a Cape Gerardo License #852, expires March/2014. Outdoor lighting, home theater systems, telephone jacks, surveillance systems, etc..."If There is Wire to It...We Do It".

Kohler Emergency Generators and Transfer Switches
 Undergound Electrical Conduits/ Electrical Room
High Voltage Transformer
 Landscape Lighting Design and Installation
 Data Center Lighting

+15

Sides Contracting, LLC
New to Angi
Generator - Repair - For BusinessPortable Generator - InstallPortable Generator - Repair

Serving Greenville, MO and surrounding areas

Hello, I’m Dan, and myself and my crew are most capable of taking care of nearly every project you may have. With our combined experience in many fields, you’ll get superior service, quality workmanship, and fair, competitive pricing. We work when others won’t, providing standard rates on nights and weekends. \n From home appliance repair and installs, to whole home renovations, HVAC, plumbing and electrical, decks, siding and so much more, not only can we do it, we can do it beyond your expectations. For the rare instances we encounter that we aren’t 100% certain we can exceed your expectations, we can refer someone who we know will satisfy you. \n Free estimates, advice, and all work warrantied. \n Local, same day service most days, 24hr max arrival windows for repairs. \n Give us a chance to impress you, and you’ll be the person who can always tell your friends and family “I know a guy!”

Generator Install questions, answered by experts

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

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.

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

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

Many services include assembling the unit and securing it in the window. Confirm with your provider.

The Greenville, MO homeowners’ guide to generator installs

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