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4.8

(420 reviews)

Top-rated electricians.

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Avatar for Griffin Electric
Griffin Electric
4.9(
321
)

Serving Duncan, SC and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Couldn't ask for a more professional job competition. Buzz and McLean did a fantastic job and completed the job quickly. Highly recommend Griffin Electric!"
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+24

Response time9 hrs
Response rate96%
4 neighbors recently requested a quote
Avatar for U.S. Energy Solutions
U.S. Energy Solutions
4.7(
74
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2015

Warranties offered

Credit card accepted

"We highly recommend U.S. Energy Solutions...Mom and dad had some unforeseen electrical issues that needed to be fixed in their kitchen due to an inspection review before selling their home. I went to Angie's List put in a request for suggestion and U.S. Energy Solutions got right back to me. We set up and appointment! Electrician was prompt, courteous, professional and friendly. He diagnosed the issue straight away, took the time to show us and explain the problem. His confident approach to the problem was reassuring and was fixed quickly! All the way around a great experience!!"
Horan Solar and Battery -Easley SC
Horan Solar and Battery -Easley SC
Horan Solar and Battery -Easley SC
Horan Solar and Battery -Easley SC
Horan Roof Installation 3rd day

+1

13 neighbors recently requested a quote
Recommended by96%of homeowners
Current Electric LLC
5.0(
10
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2016

Free estimates

Offers commercial services

"We wanted to update our dated kitchen, and needed to upgrade multiple aspects of the electrical. We called Current Electric on recommendation from a friend who had used their services in the past. Through the entire process of replacing the old lighting with more modern fixtures, installing an outlet in the pantry for our toaster oven to free up counter space, and adding a switch under the sink for the new garbage disposal we had plumbers install beforehand, these contractors were friendly, professional and knowledgable. They worked in a timely manner that allowed us to stress less about the project and enjoy the new look and function of our updated kitchen. Everything works just how we had hoped and we intend to use their services for any future electrical work."
Response time8 hrs
3 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Bayou Electric, LLC
Bayou Electric, LLC
4.5(
23
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"We had a great experience with Bayou Electric. They installed 7 recessed lighting fixtures for us and were very professional and did a quality job. I plan to hire them again for any electrical needs."
Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mr. Electric of Greer
Mr. Electric of Greer
4.9(
15
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"A MUST call company for all of my electrical needs from now on! Their tech Cody was clean and professional. They got the job done perfectly."
Whole Home Generator
Kitchen remodel
Parking lot lighting
Panel install
Response time2 days
14 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Dedicated Electrical Service, LLC
Dedicated Electrical Service, LLC
4.3(
163
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I was very impressed with the service. Mark, the owner, was wonderful and quickly found the problem. I have since recommended Dedicated Electrical Service, LLC to a neighbor who is looking for an honest and dependable electrician!"
 customers lamp post
 Panel Rebuild
 ceiling fan
 Replacement of old equipment
 ceiling fan

+3

Response time5 hrs
8 neighbors recently requested a quote
Recommended by95%of homeowners
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Electrical questions, answered by experts

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

The key difference between a circuit breaker versus a surge protector is that circuit breakers shield your entire electrical system from overcurrents and faults, while surge protectors defend your electronic devices against voltage surges and spikes. A circuit breaker interrupts the flow of electricity in a circuit when it detects an overload or short circuit, protecting the wiring from damage and preventing fires. In contrast, a surge protector shields electronic devices from voltage spikes, such as those caused by lightning strikes or power surges, preventing damage to the device’s inner mechanics.

Be careful not to drop your voltmeter or multimeter. Even a small fall can affect the tool’s ability to measure with accuracy. Always store your tools in their cases in a cool, dark place. Also, avoid touching the probes to each other while they’re connected to a circuit or another electrical component, and never tamper with anything inside the device.

It can be safe to buy or live in a house with knob and tube (K&T) wiring, but only if the system is in good condition, functional, and has been thoroughly inspected and approved by a licensed electrician. Never purchase a home with K&T wiring without getting a professional electrical inspection first.

Key considerations include:

  • Safety and Condition: An inspector will verify that the wiring is safe and has not deteriorated. Over time, the insulation can wear away, leaving exposed wires that pose a significant fire or shock hazard.

  • System Capacity: The electrical service should be at least 60 amps. However, even at this capacity, K&T systems often struggle to handle the demands of modern appliances and electronics.

  • Lack of Grounding: Knob and tube wiring is an ungrounded system, which is a safety concern for many modern devices.

  • Ongoing Maintenance: If you live in a home with K&T wiring, it's recommended to have it inspected by an electrician every one to two years to ensure it remains in safe working order.

Ultimately, any inspection or modification of a knob and tube system should always be performed by a certified professional.

It’s possible to distinguish a positive black wire from a negative black wire if you know what type of circuit the wires are in. If it’s an alternating current (AC), then black wires are positive. If it’s a direct current (DC), then black wires are negative. 

Sometimes, a circuit has two black wires. In that case, the positive black wire will be solid black while the negative black wire will have a white stripe on it. If you’re still unsure, you can use a multimeter to check.

The Duncan, SC homeowners’ guide to electrical services

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