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Verified Reviews for Generator Install pros in Grimsley, TN

*The Angi rating for Generator Install companies in Grimsley, TN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Grimsley, TN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on May 21, 2026

Find Generator install pros in Grimsley

Avatar for Zuercher Electric Company
Zuercher Electric Company
4.2(
6
)

Serving Grimsley, TN and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

At Zuercher Electric Company, our technicians are trained in all aspects of residential wiring. Most of our electricians spend their time wiring new homes, but we also have a dedicated service technician to troubleshoot existing homes electrical wiring needs. Our new homes range from the simple to the complex.

5 neighbors recently requested a quote
Recommended by16%of homeowners
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Avatar for Premier Generators
Premier Generators
New to Angi

Serving Grimsley, 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.

130 neighbors recently requested a quote
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Generx Generators
New to Angi

Serving Grimsley, 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.

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Avatar for Whitted Electric
Whitted Electric
5.0(
4
)

Serving Grimsley, TN and surrounding areas

In business since 2024

Credit card accepted

Offers commercial services

"Dane was absolutely amazing!! He was VERY thorough and kept me informed through the whole process! If your looking for a top notch professional he is the man for the job!"
AT&T Installation
Kitche Remodel
Lighting Retro Fit
Response time2 days
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Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)

Serving Grimsley, TN and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

Today, we're proud to be the world's largest home improvement retailer. In 2,300 stores across North America, we aspire to excel in service – to our customers, associates, communities and shareholders. That's what leadership means to us. That's The Home Depot difference.

Generators
Generators
Generators
Generator
Generators

+5

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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.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

The Grimsley, TN homeowners’ guide to generator installs

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

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