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Verified Reviews for Generator Install pros in Mount Holly, NC

*The Angi rating for Generator Install companies in Mount Holly, NC 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 Mount Holly, NC 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 July 31, 2026

Find Generator install pros in Mount Holly

Avatar for Mister Sparky by Wise Electric Control, Inc.
Mister Sparky by Wise Electric Control, Inc.
4.6(
293
)
Fixed Generator - Repair

Serving Mount Holly, NC and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

"This project involved the routine maintenance of a generator. All the Technicians demonstrated excellent product knowledge and attention to detail. Very pleased with the company and the service!"
14KW Generator System
Voltvault Breaker Panels
Voltvault Breaker Panels
Back-Up Generator Residential
Back-Up Generator Commercial

+13

Recommended by83%of homeowners
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Avatar for Powerhouse Electric & Generators
Powerhouse Electric & Generators
4.8(
16
)
Fixed Generator - InstallFixed Generator - Repair

Serving Mount Holly, NC and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

Welcome to Powerhouse Electric & Generators! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!\n

Generac
5 neighbors recently requested a quote
Recommended by58%of homeowners
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Avatar for Power Source Electrical Services Inc.
Power Source Electrical Services Inc.
4.3(
8
)
Fixed Generator - InstallFixed Generator - Repair

Serving Mount Holly, NC and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"They have great service. We call to tell them what’s going on, they come and fix it, then they leave and send us a bill. It’s perfect."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

66 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Mr. Electric of Gastonia
Mr. Electric of Gastonia
4.8(
64
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Mount Holly, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"On time and made repair cost was reasonable. Wil use again if needed."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+89

2 neighbors recently requested a quote
Recommended by80%of homeowners
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Avatar for Elecstroman Contractors LLC
Elecstroman Contractors LLC
5.0(
6
)
Fixed Generator - InstallFixed Generator - Repair

Serving Mount Holly, NC and surrounding areas

Approved

In business since 2011

Emergency services offered

Credit card accepted

"Take from this old gal. These guys were truly great. They came in explained the job did the job AND cleaned up after themselves. I am happy with the work they did and impressed by their professionalism."
Breaker Panel
Electrical Project
Tankless water Heater
Electrical Project
5 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for ALB Electric L.L.C
ALB Electric L.L.C
5.0(
25
)
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%
69 neighbors recently requested a quote
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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, the owner of Walker Electric was the technician that actually showed up to do the work. I had him install a ceiling exhaust fan in my bathroom. He did excellent work replacing the old one with new and didn’t do any unnecessary drywall damage. I also had Drew install under cabinet strip lighting in my kitchen that came out looking wonderful. His pricing was more than reasonable and his quality of work was top notch. I would recommend Walker Electric for any of your electrical needs and I will absolutely be using them again in the future!"
Portfolio
Portfolio
Portfolio
Portfolio
Portfolio

+12

Response time8 hrs
Response rate95%
Recommended by9%of homeowners
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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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Avatar for Madrid Projects LLC
Madrid Projects LLC
4.8(
17
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Mount Holly, NC and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Did a great job installing my chandelier looks great I strongly recommend."
Electrical Project
Electrical Project
Electrical Project
Electrical Project
Handymen Project

+44

Response time7 hrs
Response rate100%
26 neighbors recently requested a quote
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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.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

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.

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