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Avatar for Greens Electrical
Greens Electrical
5.0(
25
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Mr. Green TRULY puts the customer first! He installed a whole house generator for me last August and called to check on us 6 months later because bad weather is coming. Brought me a key and showed me (again) how to add oil. I had several estimates and he beat other prices by several thousand $ AND he installed a bigger generator! I will definitely hire him again and recommend him to every one!! 5 star service *****!!"
Additional Photos
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+1

Response time1 day
7 neighbors recently requested a quote
Recommended by84%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

"We were looking to have a generator installed, having several quotes already cody from mr electric came and walked me thru all my options getting me the best price with a better generator I also had my main panel replaced since it was original to our home. They did the job perfect cleaned up everything and weà  à ¢à  à  à  à  ve never been happier with their overall service 5 stars!"
Whole Home Generator
Kitchen remodel
Parking lot lighting
Panel install
Response time2 days
13 neighbors recently requested a quote
Recommended by86%of homeowners
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

"5 stars! Mark Chapman with US Energy Solutions just installed a manual transfer switch box for my portable generator. The work was done professionally, on time, and very reasonably priced. Mark tested the install before he finished and it was perfect the first time. He was knowledgeable and experienced. My next electrical project will start with a call to Mark!"
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

14 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for US Energy Solutions, LLC
US Energy Solutions, LLC
4.8(
146
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Whole house Generator installation was neat and clean and the electricians, Forest and Kevin were personable, professional and did such a great job! Richard did a wonderful job communicating with us. Great Company! We highly recommend them!"
Roof Mounted Solar System
Solar Battery Energy Storage
Solar Battery Energy Storage
Heat Pump
Air Conditioning Unit

+6

Response time10 hrs
Response rate92%
1 neighbors recently requested a quote
Avatar for Surge Electrical Contractor, LLC
Surge Electrical Contractor, LLC
4.7(
19
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Serge and Reuben were very kind and professional. They showed up on time, managed the permits and inspections in record time. AND got the power company in my area on board in record time also! This in the middle of storm damage all over our town! When there were some issues with wiring (as there always is in a house built initially in 1940 and added to in no apparent plan, quirky but cool!) Serge explained them to me and we came up with a plan and though he could have, didn't charge me for the extra effort. We discussed some future projects as the remodel goes forward and he ran wires for them so it will be a go when we get there. I couldn't have asked for better service, better communication, better replacement equipment and better understanding when I wanted to change things on the fly. He will be my go to guy for all future projects and I would recommend him highly and plan to with everyone I know. He does commercial and residential and is truly a part of the pro family now"
Response time6 hrs
2 neighbors recently requested a quote
Recommended by100%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 Just Electric, LLC
Just Electric, LLC
4.6(
21
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"What a joy it is to recommend Pete and â  Just Electricâ  . To folks in need of electrical work and want reliable service! I needed a new light fixture installed as well as an inoperative wall switch. One call to Pete and he had a great team at my house working in no time. Job done quickly and to my wifeâ  s liking! Thanks Pete and your technicians! I recommend â  Just Electricâ  for any project!"
Response time6 hrs
Response rate85%
6 neighbors recently requested a quote
Avatar for Cerberus Electrical, LLC
Cerberus Electrical, LLC
5.0(
47
)

Serving Duncan, SC and surrounding areas

Approved

In business since 2022

Small jobs welcome

Credit card accepted

"Kevin did an excellent job! We hired him to install (3) bathroom exhaust fans, vent 2 upstairs properly to the outside soffit and install (2) recessed outlets in our den. On time, excellent communication, cleaned up after the job was complete and a fair price / value for the job. I would highly recommend Kevin if you need an electrician at your house. Thanks, John C."
Response time4 hrs
Response rate93%
Recommended by79%of homeowners
Avatar for Homeland Electric LLC
Homeland Electric LLC
5.0(
15
)

Serving Duncan, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"The experience was fantastic. I have used him twice both for my dental office as well as my home. You can choose homeland electric with confidence. Extremely skilled, reliable, reasonably priced for the quality of service. Most importantly, this is an electrician you can trust. I highly recommend Homeland electric!"
Response time9 hrs
5 neighbors recently requested a quote
Avatar for VoltX Electrical
VoltX Electrical
5.0(
6
)

Serving Duncan, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Offers commercial services

"VoltX is the premier electrical service provider in our area. I have worked with Andrew of VoltX for some time now and the work they do is nothing short of exceptional. From wiring my outdoor area at my home, to my business, to my complete home generator, each time has been a pleasure and I will continue to use their services in the future, as I have dozens of times in the past! If you re looking for electrical.. Call these guys!"
Mid install
Response time2 days
2 neighbors recently requested a quote
Showing 1-10 of 50
Generator Install questions, answered by experts

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. 

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

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

The Duncan, SC homeowners’ guide to generator installs

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