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Avatar for Premier Generators
Premier Generators
New to Angi
Fixed Generator - Install

Serving Sparta, TN and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

Premier Generators has helped homeowners and businesses across the Southeast protect what matters with reliable Generac home standby generators for over 30 years.\n\nWhen power goes out, your generator is designed to start automatically and restore power within seconds, helping keep your home or business running smoothly. We start by learning what matters most on your property, then guide you through a clear process: right-sized recommendations, permitting, installation, and complete start-up and testing.\n\nOur relationship does not end at installation. We provide service and maintenance to help your system stay ready, including routine inspections, preventive maintenance, and repairs. Ask about maintenance plans and support options, plus warranty coverage that can extend up to 10 years.\n\nWhether you’re protecting a whole home or a commercial site, we’ll help you choose the right solution for your needs and leave you feeling confident, informed, and prepared long before the next outage.

132 neighbors recently requested a quote
Avatar for Priority Projects
Priority Projects
5.0(
4
)
Portable Generator - InstallPortable Generator - Repair

Serving Sparta, TN and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Very professional, quality work and quality materials. Continued to work during extremely cold weather and finished work within a reasonable time frame. Will give a follow up review in March when they come back to stain the steps once the pressure treated wood has dried out. They exceeded my expectation."
Response time12 hrs
Response rate91%
Recommended by66%of homeowners
Generx Generators
New to Angi
Fixed Generator - Install

Serving Sparta, TN and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

GenerX provides residential homeowners and businesses with all their standby electric power solutions. We sell, install, service, and maintain Generac generators. We are a certified Generac Premier Dealer. In order to meet this qualification, Generac requires that you have a large inventory of new generators and parts, employ at least eight factory trained technicians, and maintain a minimum customer satisfaction rate of 92%. GenerX exceeds all of Generac's criteria and has received an abundance of Generac awards for sales, service, and installation.

Avatar for Mr. Sparky of Cookeville
Mr. Sparky of Cookeville
New to Angi
Fixed Generator - Install

Serving Sparta, TN and surrounding areas

Approved (Corporate)

In business since 1996

Emergency services offered

Credit card accepted

Since 1996, Mister Sparky® of Cookeville has been helping families throughout Cookeville with their electrical needs. Our team is ready to help you upgrade, install, or repair any parts in your electrical system. Whether you need help upgrading your panels, installing lighting, or electrical troubleshooting, our team is ready to help you. Electrical repairs and installations are a dangerous job that should be left to our professionals. In fact, residents keep coming back to us again and again because of our unparalleled services and dedication to safety. We provide electrical repair and installation services to residents in Cookeville, Lebanon, Sparta, Woodbury, Smithville and the surrounding communities.

Avatar for CANAAN ELECTRIC LLC
CANAAN ELECTRIC LLC
5.0(
36
)
Fixed Generator - Install

Serving Sparta, TN and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"Canaan Electric LLC provided exceptional service! The team was very professional, extremely knowledgeable, and handled the upgrade with a clean, seamless process. Their work is top-notch, and the pricing is more than fair for the quality you receive. I would 100% recommend them to anyone looking for the best in the business!"
Landscape lighting job
Landscape lighting job
Landscape lighting job
Landscape lighting job
Generac Generator Install

+10

Response time7 hrs
Response rate100%
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Generator Install questions, answered by experts

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

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 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

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.

The Sparta, TN homeowners’ guide to generator installs

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