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Avatar for Electrical Maintenance, Corp.
Electrical Maintenance, Corp.
5.0(
13
)
Portable Generator - Install

Serving Grant, MI and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"John from Electrical Maintenance was very responsive and reliable. The quality and speed of installation was great. Would highly recommend them to anyone with an electrical project. Very profess!"
Response time7 hrs
Response rate85%
Recommended by100%of homeowners
Avatar for PM Technologies
PM Technologies
5.0(
4
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Grant, 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%
45 neighbors recently requested a quote
Avatar for Premier Electrical Solutions LLC
Premier Electrical Solutions LLC
5.0(
5
)
Fixed Generator - Install

Serving Grant, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Scott was very professional and thorough. I appreciated that he looked into the specs for the fireplace that was going to be put on the wall, and positioned the outlet where the unit would not be impeded by the plug. I would highly recommend his work!"
Pierson house
Pierson house
Pierson house
Pierson house
Pierson house

+4

Response time8 hrs
Response rate87%
3 neighbors recently requested a quote
Avatar for Apex Precision
Apex Precision
New to Angi
Portable Generator - Repair

Serving Grant, 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.

Avatar for Ambrose Electrical Services, LLC
Ambrose Electrical Services, LLC
4.9(
19
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Grant, MI and surrounding areas

In business since 2000

Warranties offered

Small jobs welcome

"Fantastic job!! Very polite! They called right away and we were able to set up an appointment for an estimate quickly. The job took less time than he thought it would and even cleaned up after. We will definitely use them again for ANY electrical needs. Thank you Home Advisor for getting us the perfect match!"
Response time1 day
Recommended by100%of homeowners
Michigan Critical Power
4.8(
8
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Grant, 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
Showing 1-10 of 19
Generator Install questions, answered by experts

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.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

The Grant, MI homeowners’ guide to generator installs

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