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Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
6
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Cedar Hill, TN and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

90 neighbors recently requested a quote
Recommended by16%of homeowners
Avatar for Travis Electrical Service, LLC
Travis Electrical Service, LLC
4.7(
110
)
Fixed Generator - InstallPortable Generator - Install

Serving Cedar Hill, TN and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Emergency services offered

Warranties offered

"These technicians are capable, friendly, punctual people. They did an inspection, completed a project that included digging and running lines, updated electrical panel, installed GFI plugs and replaced plugs and switches that were not working. Everyone explained everything and the cost was only what had been given us before doing the work. Travis Electrical will be my only call when any issue arises!"
Ceiling fan installation
New 200A panel labeled and ready to power!
Dryer outlet and normal outlet
Tesla charger installation
Generator information

+7

Response time11 hrs
57 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for RK'S Electric Solutions Inc
RK'S Electric Solutions Inc
4.7(
21
)
Fixed Generator - InstallPortable Generator - Install

Serving Cedar Hill, TN and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"RK'S Electric Solutions, was absolutely phenomenal. He was very knowledgeable on our service upgrade. He broke down what needs immediate repair, at a decent time and amount. I would highly recommend anyone using this company!"
Panel Installations
Panel Installations
Panel Installations
Panel Installations
Panel Installations

+69

Response time7 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Top Notch Electrical Group llc
Top Notch Electrical Group llc
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Cedar Hill, TN and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"This is definitely the guy to hire if you need any electrical work done! He was kind and exceptionally professional. It was supposed to be a simple ceiling fan replacement. However, Larry found a serious problem with my wiring that I'm blessed didn't actually cause a fire in my home. He showed me the problem and fixed it even though that really should have been a separate call. I am over the top pleased with the service and work performance. I HIGHLY recommend Top Notch Electrical and Larry!!! 5 STARS!!!"
New panel upgrade
19 neighbors recently requested a quote
Avatar for Hiller Plumbing, Heating, Cooling, & Electrical
Hiller Plumbing, Heating, Cooling, & Electrical
4.5(
38
)
Fixed Generator - InstallFixed Generator - Repair

Serving Cedar Hill, TN and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Small jobs welcome

Hiller Plumbing, Heating, Cooling, & Electrical, established in 1990, stands for quality and reliability. With our 'Happy You'll Be or the Service is Free' guarantee, we are dedicated to customer satisfaction in Clarksville and the surrounding communities. Our plumbers provide emergency repairs, sewer line service, and expert installation or repair of water heaters. Our HVAC specialists ensure your comfort with preventative maintenance, air conditioning and furnace repairs, for year-round comfort. Our licensed and insured electricians offer prompt emergency response, custom upgrades, and safe, thorough electrical fixes for both residential and commercial properties. Hiller is your trusted provider for all your home service needs.

My jobs
My jobs
My jobs
My jobs
My jobs

+14

Recommended by94%of homeowners
Avatar for M & M Electric & Mechanical LLC
M & M Electric & Mechanical LLC
4.1(
13
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Cedar Hill, TN and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"It would be very difficult, if not impossible to find another company that has the commitment to excellence that M&M Electric has. I had them put in new central heating and air in my house and was surprised at how quickly they installed everything while still maintaining a high quality standard and while paying attention to every detail. Very impressive considering what they charged for the install was way less than what I was expecting to pay. I will definitely keep their number handy for any other jobs that pop up."
Gas Lanterns
Wine Room Chiller
Townhomes
Brewery Steam Removal
Rooftop Install

+2

Response time9 hrs
Response rate98%
Recommended by75%of homeowners
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Showing 1-10 of 53
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.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

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.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

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.

The Cedar Hill, TN homeowners’ guide to generator installs

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