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Verified Reviews for Generator Install pros in Johnsonville, SC

*The Angi rating for Generator Install companies in Johnsonville, 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 Johnsonville, 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 June 05, 2026

Find Generator install pros in Johnsonville

Avatar for Mister Sparky of Florence
Mister Sparky of Florence
5.0(
17
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Johnsonville, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Emergency services offered

"We had an emergency light in our electrical closet that got no power. What a weird, isolated occurrence, since no other electrical issues existed. Brian was such a pleasant technician to work with! He was knowledgeable, prompt, gave me the best possible fixature option, a reasonable price and his service was fast! Thanks, Blake and Brian. They even installed the new emergency light. I will be sure to count on you for all of our electrical needs in the future. At least, then I can expect our exit lights won't be crooked :)"
Install - Under Cabinet Lighting
Install - Outdoor Outlets
Install - Outlet Replacements
Install - Outlet
Install - Door Bell

+5

12 neighbors recently requested a quote
Recommended by29%of homeowners
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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 Johnsonville, SC and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Got the job done quick, and for a good price!"
Smith Electrical
20 neighbors recently requested a quote
Request Quote
Avatar for Swift Services Heating & Cooling, LLC
Swift Services Heating & Cooling, LLC
4.0(
65
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Johnsonville, SC and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Emergency services offered

"Swift is an efficient and professional service company. They installed my new air conditioner quickly and with no problems. They were on time, and the installers were friendly and courteous. I would recommend them to everyone. I would not use anyone else for my AC service. They are the best!"
Response time10 hrs
53 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Rabon Brothers Services, LLC
Rabon Brothers Services, LLC
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Johnsonville, SC and surrounding areas

In business since 2023

Free estimates

"Very professional, showed up on time, performed the generator service and was a pleasure to work with. You wonâ t go wrong hiring the Rabon Brothers!"
Response time4 days
Recommended by100%of homeowners
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Avatar for B1 Electric, LLC
B1 Electric, LLC
4.1(
30
)
Fixed Generator - Install

Serving Johnsonville, SC and surrounding areas

In business since 2016

Free estimates

Small jobs welcome

"Came the very next morning after my initial estimate request. The cost was exactly what they quoted, no surprises. Professional and friendly, great company."
200A Service Upgrade
200A underground Service with disconnect
Kitchen lighting Project
Outdoor lighting and outdoor 100A electric service
Exterior Ceiling Fan with Leaf Design

+4

Response time4 hrs
Recommended by96%of homeowners
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Showing 1-10 of 23
Generator Install questions, answered by experts

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

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.

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.

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.

The Johnsonville, 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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