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Verified Reviews for Generator Install pros in Saint Charles, SC

*The Angi rating for Generator Install companies in Saint Charles, 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 Saint Charles, 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 13, 2026

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Avatar for Smith Electrical And Telecommunication Services LLC
Smith Electrical And Telecommunication Services LLC
5.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business+1 more

Serving Saint Charles, SC and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Quick response, Friendly and Knowledgeable"
Smith Electrical
48 neighbors recently requested a quote
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Pro-Tech Electrical Services
5.0(
3
)
Fixed Generator - InstallFixed Generator - Repair

Serving Saint Charles, SC and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"Absolute professionals!!!! Johnny and his son John went the extra mile to explain everything they were doing and why. Very knowledgeable, professional and just all around good guys. Iâ  ll be calling back for any future electrical needs. Thanks again for a great job!"
Recommended by100%of homeowners
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E E, LLC
New to Angi
Fixed Generator - InstallPortable Generator - Install

Serving Saint Charles, SC and surrounding areas

In business since 2015

Free estimates

Credit card accepted

With over 17 years of experience in electrical, Ee LLC is your one stop electric shop. From new electrical for home additions to panel upgrades Ee LLC has got you covered. Licensed through the international code council for residential, commercial and industrial; we take pride in our high quality craftsmanship, attention to detail and excellent customer care. For quality that you can rely on; call Ee LLC today and get your project done the right way!!\n\n.

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BNR Engineering
New to Angi
Generator - Repair - For Business

Serving Saint Charles, SC and surrounding areas

In business since 2018

Free estimates

Credit card accepted

BNR Engineering: Electrical Engineering. Energy and Construction Management Services\n\nPhone: 704.737.2336\nEmail: "[email protected]" or "[email protected]"\n\n ***Energy Audit of Buildings\nResidential - Residential tax credit \n Reduce Electric Bill\nCommercial - \n *** HELP WITH PERMITTING AND INSPECTIONS ***\nFourteen (14) years experience providing Design, Construction Administration and Permitting Services for:\n* PV/SOLAR Design/Build * Upgrade of Electrical Service * Interior Lighting & Power Renovations \n* Street & Site Lighting * Fire Alarm * Telecommunication * Churches * Schools * Design/Build * Commercial & Industrial Buildings, etc.\n\nExperience in providing engineering and construction management services include engagements with:\n Charlotte-Mecklenburg Schools(CMS) Mecklenburg County The City of Charlotte \n NO SET COST($$) OR FEE($$) NO PROJECT TO SMALL \n\n

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Generator Install questions, 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. 

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

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

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.

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 Saint Charles, 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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