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Verified Reviews for Generator Install pros in Shelby, MI

*The Angi rating for Generator Install companies in Shelby, 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 Shelby, 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 September 23, 2026

Find Generator install pros in Shelby

Avatar for PM Technologies
PM Technologies
5.0(
4
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Shelby, 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 rate100%
49 neighbors recently requested a quote
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Avatar for Apex Precision
Apex Precision
New to Angi
Portable Generator - Repair

Serving Shelby, MI and surrounding areas

Approved

Small jobs welcome

At Apex Precision, we take pride in providing reliable, high-quality handyman and general contracting services for residential and commercial customers. From small repairs and maintenance to custom projects, we bring precision, professionalism, and attention to detail to every job.\n\nWe specialize in a wide range of services including drywall, flooring, painting, trim work, repairs, installations, carpentry, and general home improvements. No project is too small or too big — our goal is to deliver dependable workmanship, honest communication, and results you can trust.\n\nCustomer satisfaction is our top priority, and we work hard to make sure every project is completed safely, efficiently, and to the highest standards. When you choose Apex Precision, you’re choosing quality craftsmanship and service you can count on.

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Avatar for D Maddux Electric
D Maddux Electric
1.0(
1
)
Fixed Generator - Install

Serving Shelby, MI and surrounding areas

Free estimates

Emergency services offered

Small jobs welcome

⚡️ D Maddux Electric – Trusted Electrical Services in NW Michigan! ⚡️\nServing Traverse City • Cadillac • Surrounding Communities\n\nLooking for experienced electricians you can count on?\nD Maddux Electric is licensed and insured, proudly serving Northern Michigan with high-quality electrical work you can trust.\n\nWe specialize in:\n🔧 New Build Construction Wiring\n🔌 Generac Generator Sales & Installs\n⚡ Service Upgrades & Panel Changes\n💡 All Types of Residential & Light Commercial Electrical Work\n\nWhether you’re starting a new project or upgrading your current system, we deliver honest service, expert craftsmanship, and on-time results.\n\n📍 Locally owned & operated\n🛠 Quality-driven | Professional | Dependable\n\nCall or Email Today for a Free Estimate!\n📞 231-299-7469\n📧 [email protected]\n\n🔌 D Maddux Electric – Powering Your Projects the Right Way.

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Apcom Electric
New to Angi
Fixed Generator - InstallFixed Generator - Repair

Serving Shelby, MI and surrounding areas

In business since 2005

Free estimates

Credit card accepted

Apron Electrjc is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

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Generator Install questions, answered by experts

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

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.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

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. 

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

The Shelby, 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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