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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
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.

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

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

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

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

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

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.