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Verified Reviews for Generator Install pros in Three Oaks, MI

*The Angi rating for Generator Install companies in Three Oaks, 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 Three Oaks, 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 June 17, 2026

Find Generator install pros in Three Oaks

Avatar for The Service Professor, Inc. - Electrical
The Service Professor, Inc. - Electrical
4.3(
1,049
)
Fixed Generator - InstallFixed Generator - Repair

Serving Three Oaks, MI and surrounding areas

Approved

Super Service Award Winner

In business since 1978

Free estimates

Credit card accepted

"Nearly flawless generator installation - quickly responded and fixed problem. I would recommend Service Professor for your generator install!"
Water Service
Water Service
Store Front
Panel Upgrade
Panel Upgrade

+13

Response time2 hrs
Response rate100%
138 neighbors recently requested a quote
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Avatar for PM Technologies
PM Technologies
5.0(
4
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Three Oaks, MI and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"We just had the generator installed today and are so pleased with the guys from PM Technologies from the electricians, helpers, and Ken the salesman. We couldn't have asked for nicer people to do our job."
Additional Photos
Additional Photos
20KW Kohler
Response time1 day
Response rate95%
39 neighbors recently requested a quote
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Avatar for Ls industrial repair
Ls industrial repair
5.0(
2
)
Portable Generator - Repair

Serving Three Oaks, MI and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

"He showed up in a timely manner. He did the job quickly. There was a shorted wire that he had to re-run and pull through the existing pipe. So far it's all working great and has not needed to return. So far everything working great."
3 neighbors recently requested a quote
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Avatar for Martell Electric, LLC
Martell Electric, LLC
4.4(
41
)
Generator - Install - For Business

Serving Three Oaks, 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
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Avatar for A2Z Services
A2Z Services
2.5(
28
)
Portable Generator - Repair

Serving Three Oaks, MI and surrounding areas

In business since 2007

Free estimates

"Responded right away and got the job done quickly, and at a reasonable price. I was not there personally, but the person who was also reported they were friendly and professional. My only hesitation in writing this review is I don't want them to get too much work because I want to use them again in the future!"
Mobile Home Demolition
Mobile home Demolition
Front Yard Grading & Black Dirt
Response time6 hrs
Recommended by81%of homeowners
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Showing 1-10 of 12
Generator Install questions, answered by experts

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. 

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

The Three Oaks, 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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