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Top-Rated Generator install pros in Erin - Updated Nov 2026

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

Serving Erin, 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.

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+3

85 neighbors recently requested a quote
Recommended by16%of homeowners
Avatar for MARK S HOOD & SONS
MARK S HOOD & SONS
5.0(
4
)
Fixed Generator - Install

Serving Erin, TN and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Excellent work for us started off with a two car garage add-on. Then in two years a complete remodel of our little farmhouse add on about 2200 ft.² and a full built-in living basement had another two car garage. Excellent work all done an extremely timely method all on budget wonderful people to work for would recommend highly. Our address is 4139 Ashland City Rd. drive-by anytime to inspect the excellent work."
New Construction Build
New Construction Build
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New Construction Build

+11

Avatar for Weyer Works Home Solutions
Weyer Works Home Solutions
New to Angi
Portable Generator - Repair

Serving Erin, TN and surrounding areas

Approved

Emergency services offered

Weyer Works – Quality Craftsmanship You Can Trust\nAt Weyer Works, we provide dependable, high-quality home repair and improvement services with a focus on doing the job right the first time. From small fixes to full repairs, we bring the same level of care, precision, and professionalism to every project.\nOur services include drywall repair, carpentry, flooring, deck repair, door and window replacement, and general property maintenance. We take pride in clean work, clear communication, and showing up when we say we will.\nAs a locally owned business, we value honesty, fair pricing, and building long-term relationships with our customers. No shortcuts, no surprises—just solid work you can rely on.\nCall or text 615-973-0038 today for a free estimate and let Weyer Works take care of your next project.

Avatar for Premier Generators
Premier Generators
5.0(
5
)
Fixed Generator - Install

Serving Erin, TN and surrounding areas

In business since 1974

Free estimates

Emergency services offered

Power outages don't have to disrupt your life. Founded in 1994, Premier Generators has been the Southeast's trusted Generac dealer for over 30 years. As a top Generac partner trusted by thousands of homeowners, we deliver factory-certified home standby generator installations that provide reliable safety and security when you need it most.\n\nOur certified technicians bring unparalleled service quality, ensuring your generator automatically kicks in during outages to keep your home powered. Whether you need whole-home backup or essential systems coverage, we tailor power solutions to your specific needs using natural gas or propane systems.\n\nWhat started as a commitment to providing reliable backup power solutions has grown into the region's leading authority in home standby generator sales and installations. Choose Premier Generators for dedicated satisfaction, certified excellence, and peace of mind that your family stays comfortable and secure no matter what.

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Generator Install FAQs, 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.

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.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

The Erin, TN homeowners’ guide to generator installs

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