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TRUSTED BY SUMPTER, MI HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon27
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Sumpter, MI

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

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

Last update on May 20, 2026

Find Generator install pros in Sumpter

Avatar for Reliant Electric
Reliant Electric
5.0(
72
)

Serving Sumpter, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Small jobs welcome

"Very respectful, on time, and did the work professionally. Will definitely keep their card on the fridge :) We installed an external receptacle for our portable generator and a mechanical interlock for safety to prevent back feeding to the grid"
Response time10 hrs
Response rate98%
47 neighbors recently requested a quote
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Avatar for Next Generations Power, LLC
Next Generations Power, LLC
4.6(
24
)

Serving Sumpter, MI and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"Don was very pleasant to work with. He did forget to call me about when he would pick up the generator. But with the price and speed and workmanship made up for it."
Response time2 days
Recommended by95%of homeowners
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Avatar for Generator Supercenter of Detroit
Generator Supercenter of Detroit
4.0(
9
)

Serving Sumpter, MI and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"Professional and knowledgeable company who takes pride in their customer service and product. They installed a cold weather kit, took care of annual maintenance and now monitor our generator 24hours a day. Gives us piece of mind on our investment."
Office
Office Display
Inventory
Response time1 day
Response rate98%
Recommended by75%of homeowners
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Avatar for Emergency Mower Service
Emergency Mower Service
5.0(
8
)

Serving Sumpter, MI and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"The service tech was on time and very friendly and professional. I really appreciate the “at home repair service” it reminded me when doctors use to visit you at home when you were sick."
Lawn Mower Repair, Serice & Maintenance
General Maintenance
Replacing a blade.
Lawn Mower Repair, Serice & Maintenance
Replacing Blades

+22

Recommended by100%of homeowners
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Showing 1-10 of 38
Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

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. 

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

The Sumpter, 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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