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Verified Reviews for Generator Install pros in Walterboro, SC

*The Angi rating for Generator Install companies in Walterboro, SC 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 Walterboro, SC 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 September 16, 2025

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

Avatar for Mock Electric, Inc.
Mock Electric, Inc.
5.0(
4
)
Fixed Generator - Install

Serving Walterboro, SC and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Terrific job. Mock Electric installed a power line on an independent circuit for a new electric fireplace located about 100 feet away from our fuse box. They were on time and did the work in a thorough and efficient manner and on budget. Thank you for this recommendation!"
5 neighbors recently requested a quote
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Avatar for J and Jelectric
J and Jelectric
5.0(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Walterboro, SC and surrounding areas

In business since 2007

Emergency services offered

"Have to give these guys 5 stars. If you need an electrician they are the ones to contact! They did a great job at my house! Honest, trustworthy and great work!"
Additional Photos
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+15

Recommended by100%of homeowners
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Avatar for Sparkchasers Electrical Contracting, LLC
Sparkchasers Electrical Contracting, LLC
5.0(
5
)
Fixed Generator - Install

Serving Walterboro, SC and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"The owner, David Smith, was able to schedule my job in a reasonable timeframe and kept me informed when an emergency delayed his arrival. He is very professional and knowledgeable, with a pleasant personality that made him easy to work with. He removed and replaced my foyer light fixture quickly and very carefully. His price for the job was quite fair and the 10% new customer/military discount was nice. I would certainly call on him for any future electrical work."
2 Electrical Pros
Working with THE BEST!
Response time1 day
Recommended by100%of homeowners
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Avatar for Five Star Contracting, LLC
Five Star Contracting, LLC
2.9(
7
)
Portable Generator - Repair

Serving Walterboro, SC and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"We had our bathroom shower and floor remodeled. Their craftsmanship is excellent. They were timely and Courteous. Excellent in every way"
Reccesses Can
Five Star Contracting
Cameras
Led Lighting
Led Lighting

+8

Response time1 day
Recommended by75%of homeowners
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Avatar for Menace Electric
Menace Electric
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Walterboro, SC and surrounding areas

Welcome to Menace Electric electrical services — your trusted local electrician for reliable, high-quality electrical work.\n\nI’ve proudly owned and operated this small business for a little over two years, providing dependable electrical services to homeowners and businesses in our community. As a detail-oriented electrician, I take pride in delivering safe, efficient, and professional results on every project — no shortcuts, no compromises.\n\nWhether you need residential wiring, lighting installation, panel upgrades, troubleshooting, or maintenance, I’m committed to providing honest work, fair pricing, and top-tier craftsmanship.\n\nAt Menace Electric, customer satisfaction and safety is our top priority. I look forward to continuing to grow with the community and being your go-to electrician for years to come.\nAs always, we look forward to seeing you. ~ Dawson Robnett.

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Generator Install FAQs, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

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

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

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.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

The Walterboro, SC 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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