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Avatar for Jones Electrical Services
Jones Electrical Services
5.0(
43
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Afton, TN and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Bruce and assistant came on a Sunday afternoon in 20 degree weather to complete electrical work for a portable generator. In addition, they picked the generator up for us at Lowe's, set it up, and explained how to operate it and did a test run. Very knowledgeable, professional, and courteous. Work completed in less time than estimated, cleaned up the work area leaving no mess behind. Also very fair price for excellent work. Highly recommend. Bruce is the only electrician I will call on when needs arise."
Here we captured a panoramic of some of the work done in different areas of the house.
Old Meter Base
Kitchen close-up.
New Meter Base
Outlets and Switches

+25

Response time6 days
Response rate100%
4 neighbors recently requested a quote
Avatar for Hensley Electric
Hensley Electric
5.0(
34
)
Portable Generator - InstallPortable Generator - Repair

Serving Afton, TN and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"Mike always provides great service, punctuality of time on the job site, great communicator, and very knowledgeable! You will NEVER go wrong working with Mike! He’s my “go to” for every project!"
Rivian Charger
Rivian Charger
EV Charger Outlet
Response time2 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for MARTY'S ELECTRIC LLC
MARTY'S ELECTRIC LLC
4.4(
38
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Afton, 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 Your Home Solar, LLC
Your Home Solar, LLC
5.0(
19
)
Fixed Generator - Install

Serving Afton, 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%
118 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 Afton, 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

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

Serving Afton, 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 Afton, 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
Showing 1-10 of 27
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.

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.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

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

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

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

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

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 Afton, TN homeowners’ guide to generator installs

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