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Avatar for Southern Power Systems, LLC
Southern Power Systems, LLC
4.9(
86
)

Serving Berkeley Lake, GA and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Randy Hamrick(owner) was very thorough answering my questions and follow up. The installation crew was pleasant and efficient. Generator installation was completed on the date promised."
Generator Installation
Generator Installation
Generator Installation
Generator Installation
Generator Installation

+2

Response time2 days
74 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for M.J. Power LLC
M.J. Power LLC
5.0(
18
)

Serving Berkeley Lake, GA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

With over a decade of experience, we offer licensed and fully insured electrical services that prioritize both expertise and reliability. We ensure the highest standards of craftsmanship, delivering top-quality workmanship in every project we undertake. Clients can rest assured knowing that their electrical needs are in capable hands, providing them with peace of mind and confidence in the safety and efficiency of their electrical systems.

7 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Lightning Bug Electric
Lightning Bug Electric
4.7(
502
)

Serving Berkeley Lake, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Emergency services offered

"We chose Lightning Bug Electric to install a backup generator for our house because Lightning Bug had handled some electrical work for us in the past, and we liked their service. Sean and Dustin installed our generator and we could not be more pleased with our experience. They were totally accommodating to our needs and schedules, installed the generator and completed their work with a minimum of disruption to us. They answered all of our questions and were extremely knowledgeable. When we had a minor glitch with our water heater, Sean made sure that we were taken care of promptly on a Saturday morning! We look forward to continuing our relationship with Lightning Bug-- they are definitely our go-to guys!"
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
36 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Keep Smiling Plumbing, Electric, Heating & Cooling
Keep Smiling Plumbing, Electric, Heating & Cooling
4.6(
156
)

Serving Berkeley Lake, GA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1985

Emergency services offered

Warranties offered

"Everything went perfectly! The information that the company prior to installation in changed in water heater (as of 4-15) was extremely helpful! They are very knowledgeable about their products and services.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

261 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Britebox Electrical Services
Britebox Electrical Services
4.4(
37
)

Serving Berkeley Lake, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Customers say: Super punctual

"Three light fixtures installed to existing wiring, less than an hour to survey work, perform task, and do paperwork...$387...Really surprised my elderly parents and me...Just found out through this experience, they have taken over the electrical for Ragsdale Heating and Air, liked it better when Ragsdale did their own electrical...So buyer beware when dealing with this company."
Response time1 day
8 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for TE Certified, Electrical, Plumbing, Heating & Cooling
TE Certified, Electrical, Plumbing, Heating & Cooling
4.7(
129
)

Serving Berkeley Lake, GA and surrounding areas

Approved

In business since 2003

Small jobs welcome

Credit card accepted

"We hired TE to install an outlet under our kitchen sink. I was worried there might be complications with the counter and cabinets in the way but everything went smoothly and Kyle did a great job with the outlet! I would hire them again for any additional electrical work we needed."
Recessed Lights
Chandelier
TE Electrician
Kitchen Lights
Pendant Lights

+5

6 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Atlanta Master Electricians
Atlanta Master Electricians
5.0(
9
)

Serving Berkeley Lake, GA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"Ron is very experienced and professional. He had installed two new outlets for me from scratch. His prices are reasonable and heâ s a fast and focused worker. Highly recommend!"
Foyer Lighting
Bathroom Lighting Contemporary Upgrade
Dining Room Lighting Upgrade
Bathroom Mirror Lighting Upgrade
Chandelier Foyer Lighting

+7

Response time10 hrs
6 neighbors recently requested a quote
Recommended by88%of homeowners
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Showing 1-10 of 113
Generator Install questions, answered by experts

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

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.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

The Berkeley Lake, GA homeowners’ guide to generator installs

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