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Avatar for Mister Sparky Electric - Atlanta
Mister Sparky Electric - Atlanta
4.4(
1,980
)
Fixed Generator - Install

Serving Grayson, GA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1996

Free estimates

Emergency services offered

"Excellent experience overall. Scheduling is available 24/7 and they were very flexible during Thanksgiving week. The technician was on very knowledgeable, professional, and personable. The install went perfectly and I highly recommend the service."
Your Atlanta Area Electricans
Electricians you can trust!
Meet our General Manager, Rick!
Smoke detector repair? Call in the pros!
404 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Britebox Electrical Services
Britebox Electrical Services
4.5(
43
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Grayson, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Customers say: Super punctual

"Great experience with BriteBox Electrical Services. Cory Henderson was professional, respectful, and easy to communicate with from start to finish. I showed him where I wanted the outlet installed, and he handled everything with precision. He took the time to protect the work area, safely shut down the circuit, and completed a clean, high-quality installation. The workmanship was excellent. I’ll definitely be requesting Cory again for future projects. Highly recommend!"
Response time1 day
7 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Lightning Bug Electric
Lightning Bug Electric
4.7(
508
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Grayson, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Emergency services offered

"I called Lighting Bug Electric for a quote to install a generator transfer switch. The office was prompt with scheduling and called to let me know each time when a technician would be out and was on his way. Timing was accurate. Leo came out to give a quote. He looked everything over, listened to what we wanted, answered all our questions and made sound recommendations. I was very impressed with Leo and felt comfortable with the quote and his abilities. This wasn't our first transfere switch intall. I wanted Leo to do the install so I set up an appointment for install with him on the spot for the following week. Leo and Michael came out to do the install. Again the office called to let me know the were on thier way and would be arriving in about 35-40 minutes. I sat my Alexa for a reminder, they were exactly on time. The install was fast and efficient. Very little loss of power (inconvenience to me). Afterwards, Leo walked me through the operating process and again patiently answered all my questions. Michael whom Im assuming was his assistant was very pleasant and personable. Both were people you felt you could trust. They felt like *family doing the job, you knew you were in good hands. *Just FYI , my dad (who has passed) was a licensed electrician and had his own business. We were spoiled if we needed any electrical work, dad would do it. You know he was thorough. Im not an electrician but just growing up in the environment its easy to spot electricians that are sincere, knowledgeable, thorough and care. I highly recommend Leo and Lighting bug electric."
Undercabinet lighting to code!
Up Lighting and recessed lighting
Landscape lighting
Surround your pool to give a great ambience for social gatherings.
Light up dark pathways for safety and beauty!

+5

Response time1 day
53 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Dependable Electric Service, LLC
Dependable Electric Service, LLC
4.4(
415
)
Portable Generator - Install

Serving Grayson, GA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Came in, got straight to work. Lights looked amazing. Only problem was they wouldn’t patch 2 small holes from removing old fixture. I took care of it no problem but it would be common courtesy to take care of that for your customer. Other than that, honestly the guys were extremely professional. He wanted to make sure my lights lined up with existing fixtures so in an event I ever changed it, it could match and looked uniformed to the ones installed. I’d definitely use them again for sure."
Panel Change out
Detached Bar from House
Auto Transfer Panel for Back up generator
Movie Theater
Movie Theater

+62

Response time5 hrs
Response rate92%
1 neighbors recently requested a quote
Avatar for Mr. Electric of Lawrenceville
Mr. Electric of Lawrenceville
5.0(
5
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+3 more

Serving Grayson, GA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Mr. Electric of Lawrenceville provides professional residential and light commercial electrical services throughout Lawrenceville, Grayson, Loganville, Snellville, Dacula, Buford, and surrounding Gwinnett, Barrow, and Walton County communities.\n\nOur licensed electrical professionals provide electrical repairs, troubleshooting, panel and service upgrades, lighting installation, ceiling fan installation, outlet and switch replacement, EV charger installation, surge protection, code corrections, safety inspections, and other electrical improvements.\n\nWe take the time to explain the work, review available options, and provide clear pricing before the job begins. Whether you need a small electrical repair, help diagnosing an issue, or a larger upgrade to your home or business, you can count on Mr. Electric of Lawrenceville for responsive service and quality work.\n

Test Project
82 neighbors recently requested a quote
Avatar for Premier Generators
Premier Generators
New to Angi
Fixed Generator - RepairGenerator - Repair - For Business

Serving Grayson, GA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

Premier Generators has helped homeowners and businesses across the Southeast protect what matters with reliable Generac home standby generators for over 30 years.\n\nWhen power goes out, your generator is designed to start automatically and restore power within seconds, helping keep your home or business running smoothly. We start by learning what matters most on your property, then guide you through a clear process: right-sized recommendations, permitting, installation, and complete start-up and testing.\n\nOur relationship does not end at installation. We provide service and maintenance to help your system stay ready, including routine inspections, preventive maintenance, and repairs. Ask about maintenance plans and support options, plus warranty coverage that can extend up to 10 years.\n\nWhether you’re protecting a whole home or a commercial site, we’ll help you choose the right solution for your needs and leave you feeling confident, informed, and prepared long before the next outage.

Big Frog Electric, LLC
4.1(
7
)
Portable Generator - InstallPortable Generator - Repair

Serving Grayson, GA and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"James and his team rewired my lakehouse that was built in the late 1950s. They were very professional. Showed up when they said they would, were careful to only open walls where needed, and cleaned up every day. James problem-solved some very interesting challenges in our old house. His price was reasonable and customer service was outstanding. Highly recommend Big Frog Electric!!!! Kelly"
Recommended by100%of homeowners
Avatar for Global Electrical Contractors, LLC
Global Electrical Contractors, LLC
5.0(
1
)
Fixed Generator - Install

Serving Grayson, GA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

Global Electrical Contractors is your trusted partner for residential and commercial electrical services. Proudly serving the Atlanta area since 2018, we have built our reputation on safety, quality workmanship, and dependable service. We take pride in what we do and strive to provide every customer with a true 5-star experience from start to finish. With competitive pricing and a customer-first approach that makes you feel like family, our team is ready to help with all of your electrical needs. Please feel free to give us a call directly if you need service. We appreciate your business !

7 neighbors recently requested a quote
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Generator Install questions, answered by experts

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

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

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

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

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

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.

The Grayson, GA homeowners’ guide to generator installs

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