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

Avatar for Cagen Electric, LLC
Cagen Electric, LLC
4.7(
6
)
Fixed Generator - InstallPortable Generator - Install

Serving Joanna, SC and surrounding areas

In business since 2025

Free estimates

Credit card accepted

"Spencer Cagen is very professional and honest. He finished my project which could cost more than $1600 from another company for a little over $200. I strongly recommend his service and will hire him again for home project next time."
Response time7 hrs
Avatar for THE LEGACY ELECTRIC SERVICES OF THE UPSTATE INC
THE LEGACY ELECTRIC SERVICES OF THE UPSTATE INC
5.0(
2
)
Fixed Generator - Install

Serving Joanna, SC and surrounding areas

In business since 2024

Free estimates

Credit card accepted

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

My jobs
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+7

Response time10 mins
Response rate100%
Recommended by100%of homeowners
Clark Electric Service, Inc.
1.0(
1
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Joanna, SC and surrounding areas

In business since 1996

Credit card accepted

We have the experience and commitment to provide quality workmanship and superior customer service on all our applications. We strive to maintain our reputation as a high quality, very service oriented company, with our main focus being customer satisfaction.

Response time5 days
CD Service
New to Angi
Fixed Generator - RepairGenerator - Install - For BusinessGenerator - Repair - For Business+2 more

Serving Joanna, SC and surrounding areas

In business since 2007

Free estimates

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

BNR Engineering
New to Angi
Generator - Repair - For Business

Serving Joanna, 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 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. 

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.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

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

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

The Joanna, SC homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.