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Best generator install pros near Decatur, MI

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Top-Rated Generator install pros in Decatur - Updated Nov 2026

Avatar for Electrical Innovations LLC
Electrical Innovations LLC
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Decatur, MI and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"I needed an upgrade on my electrical panel at my summer home and Electrical Innovations was very resourceful and professional to work with. They completed my work in a timely manner and for a reasonable price. I would highly recommend them for any of your electrical needs."
Basement remodel
Landscape lighting
Network system
Local Landscape Lighting Project
Local Landscape Lighting Project

+21

Response time2 days
Response rate100%
16 neighbors recently requested a quote
Avatar for Martell Electric, LLC
Martell Electric, LLC
4.4(
41
)
Generator - Install - For Business

Serving Decatur, MI and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"They promptly installed two generators, one for each house, and walked through the app install. They called me a year later to schedule yearly maintenance. Great all the way around."
Response time2 days
Recommended by94%of homeowners
Michigan Critical Power
4.8(
8
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Decatur, MI and surrounding areas

In business since 2002

Free estimates

Credit card accepted

"I’ve been using Michigan Critical Power for several years to service my generator, and they’ve consistently delivered exceptional service. Their technicians are always on time, highly skilled, and clearly well-trained. What stands out most is their honesty and customer-first mindset — they truly look out for your best interests. I’ve never had a single issue with their work, and I can confidently say they’re reliable in every sense of the word. If you need generator service, I’d highly recommend giving them a call.”"
Response time3 days
Recommended by83%of homeowners
Avatar for Electrocal, Inc.
Electrocal, Inc.
3.9(
4
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install+1 more

Serving Decatur, MI and surrounding areas

In business since 1997

Free estimates

Credit card accepted

"Very professional and quality work. I would highly recommend this company to anyone seeking electrical work. He was able to find and fix issues where a previous electrical company dropped the ball. Was true to his word regarding when he would be here to work and everything was done on a timely basis. Friendly and trustworthy-highly recommend!"
Recommended by100%of homeowners
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Generator Install FAQs, answered by experts

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.

In most cases, there are no tax credits available for home generators. However, that’s a general statement that applies to federal tax credits, so you might have access to state or local tax incentives. You can check the Database of State Incentives for Renewables & Efficiency (DSIRE) for more information about your area. If you hire a reliable home generator installer, they should also know if there are any state or local perks you can use to reduce your installation costs, including tax breaks and rebates.

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 might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

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.

The Decatur, MI homeowners’ guide to generator installs

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