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Top-Rated Generator install pros in Mount Holly - Updated Nov 2026

Avatar for Walker Electrical Services
Walker Electrical Services
5.0(
11
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Mount Holly, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Drew Darien with Walker Electrical went way beyond my expectations. He started remodeling two bathrooms changing out boxed fluorescence lighting and completely opened up our bathroom with LED recessed lighting. Drew added under cabinet lighting to our vanity and through our shower. Scones and pendants were added as well. His work was so precise that he went on to remodel our kitchen. As my lead on this project, Drew worked extremely well with other contractors. Drew was timely throughout every step of the project, hard working, on time and budget, and highly creative in his design. I wholeheartedly recommend Walker Electrical for any project."
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+12

Response time8 hrs
Response rate95%
Recommended by9%of homeowners
Avatar for ALB Electric L.L.C
ALB Electric L.L.C
5.0(
26
)
Portable Generator - Install

Serving Mount Holly, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"LJ, with ALB was fantastic, personable, professional, communication about my project was great. The install went smoothly, inspection with the county was arranged by LJ and completed… I highly recommend ALB for any and all of your electrical installation and electrical projects! Definitely a 5 star ⭐️ ⭐️⭐️⭐️⭐️ review is warranted.."
Response time2 hrs
Response rate96%
76 neighbors recently requested a quote
Smart Power Source, Inc.
4.6(
11
)
Fixed Generator - Install

Serving Mount Holly, NC and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"I had been reaching out to other vendors and had a hard time getting a call back. Jason got back to me quickly and answered every question and concernI had about generators and installation. His crew were nice, quick and tidy! Well organized and detailed work! Thank you!"
Response time10 mins
Response rate88%
Recommended by90%of homeowners
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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.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

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

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

The Mount Holly, NC homeowners’ guide to generator installs

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