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Avatar for U.S. Energy Solutions
U.S. Energy Solutions
4.7(
74
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Mayo, SC and surrounding areas

Approved

In business since 2015

Warranties offered

Credit card accepted

"These guys did a great job! I was called within 1 minute of requesting quotes for this job. I was given a reasonable quote promptly. Within a few days the unit was installed and is working wonderfully. I have to point out the technician that did the install. Josh was courteous and professional at all times. He stayed in contact with me thru the whole process. I would absolutely recommend this company and will to any of my neighbors that have such needs."
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

18 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for US Energy Solutions, LLC
US Energy Solutions, LLC
4.8(
146
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Mayo, 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%
2 neighbors recently requested a quote
Current Electric LLC
5.0(
10
)
Portable Generator - Install

Serving Mayo, 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
2 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for VoltX Electrical
VoltX Electrical
5.0(
6
)
Fixed Generator - InstallPortable Generator - Install

Serving Mayo, 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
Avatar for Geter Electrical Services
Geter Electrical Services
5.0(
3
)
Fixed Generator - Install

Serving Mayo, SC and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"My initial inquiry was quickly responded to by the business owner. We discussed the problem, and he provided good advice. Based on that I hired him and scheduled the visit. Everything went smoothly and the work was completed to my satisfaction. I would hire DJ Geter again and refer him to anyone who asks me who my electrician is."
Response time12 hrs
Response rate88%
8 neighbors recently requested a quote
Avatar for Old Timey Electric, LLC
Old Timey Electric, LLC
New to Angi
Portable Generator - Install

Serving Mayo, SC and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

Old Timey Electric is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

Projects
15 neighbors recently requested a quote
Avatar for Corley Plumbing Air Electric Inc
Corley Plumbing Air Electric Inc
4.0(
453
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Mayo, SC and surrounding areas

In business since 1986

Emergency services offered

"SUMMARY: HIGH QUALITY WORK WITH LARGE PRICETAG. Corley plumber arrived on time. Their plumber was polite and offered several options for the repair. The repair was completed correctly and in a timely manner. Work area was cleaned after plumbing work was completed. No problems with the repair since it was completed which was several years ago. In short, I would give them FIVE STARS FOR THE QUALITY OF THEIR WORK. I would hire them again in an EMERGENCY (which is why I hired them for this work; the usual plumbers I use were unavailable), but NOT for non-emergency work. My reason for not wanting to use them for routine work is that their prices were OUTRAGEOUS and I'm not a miser (this is why I removed one star in my rating). The few replacement parts needed would have been nominal cost at a plumbing supply store. That means their labor was $200+/hr for installing compression fit connections which is even easier and quicker than gluing PVC pipes together (no heavy lifting; nothing complicated; easy access to pipes). I've had other plumbing jobs that were too big for me to do. I've found competent plumbers that do a great job (quality like Corley's) for half the price if you are willing to wait a day or two. Lesson: Instant gratification has a high price tag. FYI: They will charge for the cost estimate if you don't have them do the repair."
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+5

Recommended by77%of homeowners
Showing 1-10 of 36
Generator Install questions, answered by experts

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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

Many services include assembling the unit and securing it in the window. Confirm with your provider.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

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 Mayo, SC homeowners’ guide to generator installs

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