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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!"
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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

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

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.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

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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