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Best generator install pros near Greeneville, TN

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

Avatar for MARTY'S ELECTRIC LLC
MARTY'S ELECTRIC LLC
4.4(
38
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Greeneville, TN and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"We needed a meter pole for our RV, and Marty's gave us a very reasonable quote, as well as a full detailed estimate of the job to be done. They installed our meter pole exactly to local city/ state codes, and completed it in a very timely manner! We could not have been more pleased with the project outcome!"
Inside chandeliers
Outside lighting
Response time8 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Your Home Solar, LLC
Your Home Solar, LLC
5.0(
19
)
Fixed Generator - Install

Serving Greeneville, TN and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"Everyone from the start of working with this company was great. We had solar panels installed back in 2022 and the company then they went under federal control. I had called multiple companies, no one was willing to help except your home solar. We needed a permit to get the solar up and running which also meant the state inspection. Anita, Landon and all of the other employees that we encountered in this process made it a very easy process. I would recommend this company to anyone looking for solar or that needs to get panels they have up and running."
Knoxville Solar Project
Knoxville Solar Project
Knoxville Solar Project
Knoxville Solar Project
Knoxville Solar Project

+9

Response time1 day
Response rate90%
112 neighbors recently requested a quote
Avatar for Service Pro Electric LLC
Service Pro Electric LLC
5.0(
10
)
Fixed Generator - InstallPortable Generator - RepairGenerator - Repair - For Business+1 more

Serving Greeneville, TN and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Alex was very professional. Great communicator and planner. The estimate he gave was right on and matched my own expectations. Clean work, punctual and verifiable. I plan on using Service Pro again on future job. and planner. Had a service update and changeover from 100 amp fuse box to 200 amp breaker box. Alex didn't miss a beat. Thank you sir for making us feel important."
EV Charger
EV Charger
Panel Upgrade
Panel Upgrade
Troubleshooting Light

+4

76 neighbors recently requested a quote
Baggetts Electrical Services
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Greeneville, TN and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"I had a car charger installed and was really happy with the work. He was responsive, showed up when he said he would, and the install came out clean and professional. Everything was explained clearly, the work area was left neat, and the charger works exactly as it should. Definitely someone I?d recommend if you need electrical work done."
3 neighbors recently requested a quote
Avatar for Flip Switch Electric LLC
Flip Switch Electric LLC
5.0(
5
)
Fixed Generator - InstallPortable Generator - Install

Serving Greeneville, TN and surrounding areas

Approved

Free estimates

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! \n

Electrical
24 neighbors recently requested a quote
Showing 1-10 of 32
Generator Install FAQs, answered by experts

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

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.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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

The Greeneville, TN homeowners’ guide to generator installs

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