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Avatar for Britebox Electrical Services
Britebox Electrical Services
4.5(
43
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Fairburn, 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
6 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Atlanta Master Electricians
Atlanta Master Electricians
5.0(
9
)
Portable Generator - Install

Serving Fairburn, GA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Excellent Work! Prompt and professional. I've used Atlanta Master Electricians several times and they never disappoint. I highly recommend for your electrical needs - indoor and outdoor."
Foyer Lighting
Bathroom Lighting Contemporary Upgrade
Dining Room Lighting Upgrade
Bathroom Mirror Lighting Upgrade
Chandelier Foyer Lighting

+7

Response time10 hrs
4 neighbors recently requested a quote
Recommended by88%of homeowners
Simon E Electric, LLC
4.4(
16
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Fairburn, GA and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

We offer over 18 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We are committed to providing a personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

4000 switch gear
4000amp switch gear
Living room
Dinning light
Rang hood

+20

Response time12 hrs
Response rate88%
Recommended by100%of homeowners
Troy Bettis Electric
4.0(
116
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Fairburn, GA and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We’re committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

10 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Premier Generators
Premier Generators
New to Angi
Fixed Generator - RepairGenerator - Repair - For Business

Serving Fairburn, 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.

Avatar for Assured Comfort Heating Air Plumbing
Assured Comfort Heating Air Plumbing
5.0(
1
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Fairburn, GA and surrounding areas

Approved (Corporate)

In business since 2002

Emergency services offered

Credit card accepted

Your residential HVAC and plumbing systems are the backbone of a happy homeand when something goes wrong, you need a trusted company to turn to.\n\nEnter the pros at Assured Comfort. Our team of expert heating and air conditioning contractors and plumbers is proud to serve the communities of Atlanta, Marietta, Woodstock, Peachtree City, and many other surrounding areas.\n\nWe bring comfort to homes and businesses by delivering WOW Service at budget-friendly prices, but our real passion is giving back to the community that has given so much to us. You can regularly find us volunteering our time and services to local nonprofits and charities.\n

14 neighbors recently requested a quote
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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.

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.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

The Fairburn, GA homeowners’ guide to generator installs

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