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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%
142 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
39 neighbors recently requested a quote
Recommended by25%of homeowners
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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 13
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. 

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

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 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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