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Avatar for Charleston Electric
Charleston Electric
4.7(
359
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Hanahan, SC and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Not good, tech said the generator was out of code due to location, did not perform services. He told me office would be in touch they scheduled a quote bid for 9/23/2020 many weeks after tech was here, so after bid it will be one to two weeks before relocation of generator and service. Process is taking way to long I was willing to advance pay if they brought materials on 9/23 and complete proper install. It’s Hurricane season. They also billed me for the maintenance which he could not do because he said it was out of. Code."
20kw Cummins Onan Generator
Electrical Panel Upgrade
Bathroom remodel
20 KW Cummins Onan Generator
14 neighbors recently requested a quote
Recommended by91%of homeowners
Dreamworxs General Contracting, Inc.
5.0(
12
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Hanahan, SC and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"I would highly recommend this contractor. He was hired to install a home generator. He was professional and completed the job in an acceptable time. He came to my home & advised me what kind of generator I needed, gave me a quote (which I thought was very reasonable), ordered it & had it delivered to my home. Once delivered, he & his crew installed & tested it to make sure it operated correctly. They cleaned up after themselves, took away all debris. Everything was accomplished very quickly & the pro gave me good instructions on how to use it along with the manufacturer’s guidelines. Thank you, Dreamworld and thank you, Angi for recommending this pro."
Our Work
Our Work
Our Work
Our Work
Our Work

+20

Response time3 hrs
Response rate95%
5 neighbors recently requested a quote
Wadford Water Works, LLC
4.9(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Hanahan, SC and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Mr. Wadford was and is very responsive to any query or request. He was always on time as was the installer. He was very patient and thorough in explaining the system operation and Bluetooth software. He insured that I understood everything and answered any and all questions. I have only had the system for a short time but it is performing perfectly. This project is to replace n old system. This new system cost $1500 less than the 20 year old system it replaced. The Wadford Water Works provides a quality system as well as quick, efficient and professional installation. I am thoroughly pleased with my decision with my choice to do business with Mr. Wadford."
Response time2 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mister Sparky
Mister Sparky
4.3(
144
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Hanahan, SC and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"Very well. The Mister Sparky electrician who did our estimate also did the repair work on our home at our request. He did an excellent estimate of the work we needed done, did the work very professionally and personably, and finished the job within the estimate. This involved pulling new cable through an underground conduit and routing part of the same cable through a Charleston crawl space - it was no simple job. If I was rating this electrician I would rate him "A" across the board, but the company gets a "C" for Responsiveness because of its extremely poor office support, i.e., its answering service. Similarly, the electrician would have been rated "A" for Professionalism but the company gets a "B" rating for Professionalism for its office support. I told the company's manager and the electrician who made the repairs that its answering service is in need of substantial improvement at the time of the job."
Additional Photos
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+2

Recommended by84%of homeowners
Avatar for J and Jelectric
J and Jelectric
5.0(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Hanahan, SC and surrounding areas

In business since 2007

Emergency services offered

"The company does great work. I am please with the work. They worked fast and were very friendly. They will be installing more lights for me in the near future. The lights that I bought for him to install in the kitchen doesn’t light up the kitchen enough, so since I liked the design of light so much the owner suggested that i place the same exact light in another area of the kitchen. Great idea. He was hundreds dollars cheaper than other quotes that I received. They do wonderful work. I have already recommended him to my sister that needs electrical work."
Additional Photos
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Additional Photos
Additional Photos

+15

Recommended by100%of homeowners
Avatar for ENERGY OPS LLC
ENERGY OPS LLC
5.0(
15
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Hanahan, SC and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"I had a wonderful time working with Michael and Energy Ops to install some beautiful new lighting in my home. He was quick to answer questions, listen to my requests, and complete my project in an expedient manner. I'm very happy with his company and with the result of the project. Highly recommend!"
Response time2 hrs
Response rate98%
Recommended by100%of homeowners
Avatar for South Star Electrical Services
South Star Electrical Services
4.9(
27
)
Portable Generator - Install

Serving Hanahan, SC and surrounding areas

In business since 2017

Free estimates

Small jobs welcome

"Zach and Chance installed 10 ceiling fans on our porches and a new bath exhaust fan. Stellar service, quality and attention to detail. Kiawah and Seabrook residents should call South Star for any electrical work!"
Response time1 day
Recommended by100%of homeowners
Avatar for ALC Electric
ALC Electric
4.9(
35
)
Portable Generator - Install

Serving Hanahan, SC and surrounding areas

In business since 2022

Offers commercial services

"Vitaly did a super professional job installing five ceiling fans in our home. He was on time, friendly and did a very clean job. We would definitely call him for more electrical work."
Response time3 hrs
Response rate92%
Recommended by100%of homeowners
Showing 1-10 of 42
Generator Install questions, answered by experts

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

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

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.

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.

The Hanahan, SC homeowners’ guide to generator installs

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