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Verified Reviews for Generator Install pros in Sumter, SC

*The Angi rating for Generator Install companies in Sumter, 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 Sumter, 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 March 29, 2026

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Avatar for McLean Electric LLC
McLean Electric LLC
5.0(
15
)

Serving Sumter, SC and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Nick was wonderful to work with. He was prompt, honest and he had great ideas! The work was completed when he said it would be with very little disruption to our busy lives. I recommend him highly."
44 Thatcher Halloway
44 Thatcher Halloway
Upper and lower cabinet low voltage Led tape lighting.
44 Thatcher Halloway
44 Thatcher Halloway

+35

Response time1 day
Response rate86%
16 neighbors recently requested a quote
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Kirby Electric Services
5.0(
5
)

Serving Sumter, SC and surrounding areas

In business since 1980

Emergency services offered

Credit card accepted

"I can not say enough good things about Mr. Kirby and his company. He was very thorough, efficient and professional. I recently hired him to wire my new barn for lights and power as well as some improvements to my new home. We discussed my wishes prior to starting and his knowledge was pivotal in guiding me through the planning and supply process. He knew and adhered to all the electrical codes and he knew his business and trade. He worked very hard and was there every day until the project was complete. He even found some issues regarding previous work I'd had done and helped me resolve those in addition to the project I hired him for. I highly recommend him for ANY electrical project or problem you may have. I will always call him first for any of my future electrical needs."
Response time3 hrs
Response rate85%
Recommended by100%of homeowners
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Generator Install questions, answered by experts

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

The Sumter, 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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