Top-rated generator install pros.

Get matched with top generator install pros in Greeneville, TN

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Greeneville, TN?

Select your specific project to find the pro for you.

Find Generator install pros in Greeneville

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%
7 neighbors recently requested a quote
Avatar for Service Pro Electric LLC
Service Pro Electric LLC
5.0(
10
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+3 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

69 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."
9 neighbors recently requested a quote
Avatar for Adam Thurman
Adam Thurman
4.9(
20
)
Generator - Install - For Business

Serving Greeneville, TN and surrounding areas

In business since 2015

Free estimates

Warranties offered

"Adam and Jeff did a great job wiring all aspects of our whole house during new construction. They were meticulous in their work and I will use them again when I have more projects in the future. I highly recommend them for their work ethic, honesty and quality of work."
Response time1 day
Recommended by100%of homeowners
Avatar for E-Z Electric, LLC
E-Z Electric, LLC
5.0(
22
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Greeneville, TN and surrounding areas

Free estimates

Credit card accepted

"Exceptional Electrical Services by E-Z Electric! If you're in search of a reliable electrician, look no further than E-Z Electric. I recently relocated my business and urgently required an electrician. After receiving quotes from multiple companies, I was amazed by the difference in service when I met with E-Z Electric. They promptly provided me with a quote, and scheduled the work for the very next day. Their troubleshooting took one-third of the time of other estimates, and their quote was $2500 less than the lowest bid we received from other companies. Despite the number of issues we had with the wiring, E-Z Electric identified and resolved them all within the same day. Not only that, but they completed the work under the quoted cost! Their honesty and expertise make them an exceptional contractor - I highly recommend them! If you need electrical services, E-Z Electric is the way to go."
Electrical Project
Electrical Project
Wiring new 400 amp service
Electrical Project
Electrical Project

+20

Recommended by100%of homeowners
Showing 1-10 of 29
Generator Install questions, answered by experts

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.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

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. 

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

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.

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.