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Firefly Services Inc
4.7(
504
)

Serving Calhoun, GA and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"Lightning Bug Electric did a wonderful job. We had Josh & Jake come out to install a ceiling fan & a new switch for it in our two story living room. They were extremely nice, funny & professional. They taught us a lot about the home’s existing wiring, & recommendations to upgrade our house that were extremely helpful. The ceiling fan came out great, & the switch as well! I highly recommend them to anyone looking to get electrical work done the right way. Incredible!!"
19 neighbors recently requested a quote
Recommended by90%of homeowners
Firefly Services Inc
4.7(
501
)

Serving Calhoun, GA and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

Having been awarded for our excellence by numerous professional organizations, our team at Lightning Bug Electric has the skills and knowledge to help you with a wide array of electrical problems. Our Marietta electricians have over 25 years of experience in the industry and we always provide around-the-clock availability. If you are looking for a team led by a master electrician, you have come to the right place. We provide residential and commercial customers with wiring and rewiring, lighting upgrades, outlets and switches, full electrical remodeling and installation, and more. Call our team today to schedule your free electrical service estimate.

13 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Premier Generators
Premier Generators
New to Angi

Serving Calhoun, 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.

152 neighbors recently requested a quote
Avatar for EZ Spark LLC
EZ Spark LLC
New to Angi

Serving Calhoun, GA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

Making electrical problems disappear is shockingly easy for us.\nYou shouldn't have to play guessing games with your wiring or wait around all day for a reliable electrician. At EZ Spark, we bring the bright ideas, safe hands, and fast fixes your home deserves. From flickering lights to total panel upgrades, we make the entire process completely painless. No drama, no hidden fees—just pure, reliable power.

3 neighbors recently requested a quote
Avatar for All Pro Generator Service & Repair, LLC
All Pro Generator Service & Repair, LLC
5.0(
4
)

Serving Calhoun, GA and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"Ashley made the process painless and easy. He communicated with me throughout the entire repair and even took the time to answer my questions as well. I’ve since added them for my annual maintenance to keep my generator working every time we need it."
Cleaning a residential generator.
The owner (Ashley) in front of the Atlanta Falcons head coach's home after repairing his generator and transfer switch
This generator is now serviced and spotless and ready for the next storm.
Recommended by100%of homeowners
Showing 1-10 of 35
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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

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.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.

The Calhoun, GA homeowners’ guide to generator installs

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