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*The Angi rating for Generator Install companies in Atlanta, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

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Last update on July 22, 2026

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S&G ELECTRICAL CONTRACTORS
New to Angi
Fixed Generator - InstallPortable Generator - Install

Serving Atlanta, MI and surrounding areas

In business since 2024

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!\n

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Avatar for Dark30 Services
Dark30 Services
New to Angi
Fixed Generator - InstallPortable Generator - Install

Serving Atlanta, MI and surrounding areas

Free estimates

Emergency services offered

Warranties offered

We specialize in electrical but over the years as time went onward we have also gained other skills as well. Today, we not only offer services in electrical, but also in: plumbing, carpentry, HVAC, handyman. We have been in the skilled trades for 29 years. If anything, we are a company that believes in honesty to do the job sought after, gaining respectful trust and showing true professionalism while we do our work.

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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.

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.

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. 

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.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

The Atlanta, MI homeowners’ guide to generator installs

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

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