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Avatar for Greens Electrical
Greens Electrical
5.0(
26
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marietta, 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 *****!!"
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+1

Response time1 day
Response rate100%
5 neighbors recently requested a quote
Avatar for U.S. Energy Solutions
U.S. Energy Solutions
4.7(
74
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Marietta, 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
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Marietta, 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%
4 neighbors recently requested a quote
Avatar for Homeland Electric LLC
Homeland Electric LLC
5.0(
18
)
Portable Generator - Install

Serving Marietta, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Matthew installed a new sub panel box for us. His work was thorough and fast. The finished job looked great and worked perfectly. He also installed recess lighting for us. Again another job very well done. Not only is he reliable and does a great job but he's also personable and very kine. We highly recommend Matthew with Homeland Electric"
Response time12 hrs
8 neighbors recently requested a quote
Avatar for Avila Electric
Avila Electric
4.8(
24
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marietta, SC and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"RAVE: Greg Avila with Avila Electric is an amazing electrician!! He just installed a Generac 22kw Generator to our home. Greg took care of scheduling the delivery of the generator to our house, obtaining required permit, scheduling with Duke Energy, and he does all the installation and wiring himself. Here is why the rave: - excellent communication - provides lots of options - reliable - trustworthy - very professional - super friendly and personable - attention to detail - honest and fair pricing - great listener, and provides viable solutions - answered all my questions and concerns Anyone else looking to have a permanent generator, portable generator connection, or any home electrical needs, I highly recommend Avila Electric!! For those wanting to know the process of having a permanent generator installed, please see below: 1. Propane (most difficult part) a. If you do not have propane, you will need to contact a propane company to rent propane tank(s) i. I chose Suburban Propane b. They will need to come out and see where the tank(s) will be placed, propane gas lines to be ran to the generator location c. You will need to contact 811 to mark, and survey the area (no cost) d. Schedule the installation of the propane tank(s). Currently, a lot of propane service companies are Two Weeks or more out for scheduling an appointment 2. Please contact Greg at Avila Electric for installation of our generator."
Generator hooked up and powering a house during hurricane season.
Additional Photos
Response time3 days
Response rate100%
Recommended by95%of homeowners
Avatar for Never Dark Carolinas
Never Dark Carolinas
4.9(
17
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Marietta, SC and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"Great Communications ... Knowledgeable ... Quoted work in advance ... Easy to schedule ... Arrived on time ... completed the work promptly and effectively. Highly recommended for residential generator repair / service or install.."
22 KW Generac Guardian
Generac Guardian 22KW Air Cooled Unit
Turn Key Installation
Campobello
Generac 22KW Guardian

+5

Response time1 day
Response rate88%
Recommended by100%of homeowners
Avatar for Premier Generators, LLC
Premier Generators, LLC
5.0(
5
)
Fixed Generator - InstallPortable Generator - Install

Serving Marietta, SC and surrounding areas

In business since 2019

Free estimates

Credit card accepted

Premier Generators LLC is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests and make their concerns the basis of our business. Please give us a call today!

Backup Generator
Response time5 hrs
Recommended by100%of homeowners
Avatar for Corley Plumbing Air Electric Inc
Corley Plumbing Air Electric Inc
4.0(
453
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marietta, 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
Avatar for Nodine Electric, LLC
Nodine Electric, LLC
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marietta, SC and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today. \n

Recommended by100%of homeowners
Avatar for Hinds Electrical, LLC
Hinds Electrical, LLC
5.0(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marietta, SC and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

Hinds Electrical, LLC specializes in residential and commercial electrical installation services. Whether you need a small wiring fix or the installation of state-of-the-art smart home, we get the job done right. \n\nWith 22 years of experience, we strive to provide exceptional service. \n\nWe work to save you both time and money by combining experience, high quality parts and equipment, and exceptional electrical installation service. We will stick with you until the job is done.

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+4

Recommended by100%of homeowners
Showing 1-10 of 26
Generator Install questions, answered by experts

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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.

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.

The Marietta, SC homeowners’ guide to generator installs

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