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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

9 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
30 neighbors recently requested a quote
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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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Singleton Electric
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Johnsonville, SC and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"They were good company. They were really professional. They had a competitive price. They showed up when they said they're gonna be. They were very reliable. The owner was hardworking man and really conscientious. He goes above and beyond. He really cares about his work and his customers."
Recommended by100%of homeowners
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Showing 1-10 of 23
Generator Install questions, answered by experts

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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.

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.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

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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