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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
11 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%
4 neighbors recently requested a quote
Wadford Water Works, LLC
4.9(
9
)
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 by88%of homeowners
Avatar for LimRic Plumbing, Electrical, Heating & Air
LimRic Plumbing, Electrical, Heating & Air
4.4(
69
)
Fixed Generator - InstallFixed Generator - Repair

Serving Hanahan, SC and surrounding areas

Approved (Corporate)

In business since 2001

Free estimates

Emergency services offered

LimRic Plumbing, Heating & Air has been fulfilling light commercial and residential plumbing, heating and air conditioning needs of the Charleston area for more than 50 years. Our team provides excellent customer service and is dedicated to ensuring our staff is informed and knowledgeable so that your commercial or residential space remains safe for you, your family, or your business.\n\nAt LimRic Plumbing, Heating & Air, customer satisfaction is our priority. You can rest easy on our service pledge of “Call Today, Comfortable Tonight!” With our Quick Comfort guarantee, we promise that if we can’t fix your HVAC or Plumbing issue on the first service visit, we will provide you with a temporary replacement until we can restore it to working order. With more than 80 fully stocked service vehicles, a staff of highly trained technicians and multiple locations in the Lowcountry, we can confidently promise same-day service to our customers.\n

HVAC + Plumbing Services
Same Day Service
5.0 Star Google Rating
5.0 Star Google Rating
HVAC + Plumbing Services

+2

Response time1 day
Recommended by81%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

"I found him off Craigslist, I didn't find him on Angie's List. He did his thing, he was on time, but I thought he was outrageously expensive for what he did. I didn't know it was Mister Sparky. I went on to Craigslist and they had this one ad that didn't identify who they were. They just said that they were super cheap and the lowest cost etc etc etc. I called them up and I set up an appointment and then Mister Sparky rolls in to the driveway. I had no experience with Mister Sparky. He is the on time electrician. He showed up, he wasn't in the house for more than 50 minutes. All he did really was, he took a wall socket and turned it upside down. I had the polarity upside down, I didn't know it, it was a dimmer switch, a really simple job that he knew and I didn't know it. It was knocking off some wall sockets and then he installed a ceiling light fixture for me that I couldn't do because I just needed three hands and I didn't have them. So, he had the experience. That was all he did. He really just did practically nothing and he charged me $180. It was like $200 an hour. I live in Mount Pleasant. Mount Pleasant is on the Carolina coast here, north of Charleston. It has a lot of people like myself who aren't native to the area. Mount Pleasant in here is perhaps the state's most affluent suburb. It's a very popular place because of its proximity to the downtown of Charleston, with all those attraction for dining etc. The rest of the population kind of lives elsewhere. My experience and I've been here eight years, there is like a Mount Pleasant price and there is a price for rest of the people, wherever they live. That's the problem that you have. You mention that you live in Mount Pleasant and all of a sudden the price is, "How much?" You just have to kind of grin and bear it and shop around. That's just the way it goes around here. They think everybody is rich who lives in here. I pulled them off Craigslist. They didn't identify themselves. They rolled in the driveway and I got a $200 bill, I was a little bit shocked. It was $200 an hour. I was expecting a little over $100 or something, not even that much for what he did. They were on time."
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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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+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
Showing 1-10 of 43
Generator Install questions, answered by experts

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

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 Hanahan, SC homeowners’ guide to generator installs

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