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Verified Reviews for Generator Install pros in Saint Johns, MI

*The Angi rating for Generator Install companies in Saint Johns, 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 Saint Johns, 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 November 12, 2024

Find Generator install pros in Saint Johns

Avatar for M.R. Electric Construction, Inc.
M.R. Electric Construction, Inc.
4.4(
78
)
Fixed Generator - Install

Serving Saint Johns, MI and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Free estimates

Credit card accepted

"Great folks, quick, efficient, and professional. Would definitely recommend. I had a whole house generator installed, they had it done before I knew it!"
Response time1 day
Response rate90%
43 neighbors recently requested a quote
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Avatar for WireWorks Inc
WireWorks Inc
4.9(
299
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Saint Johns, MI and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Tom Mullaney and his team at Wire Works Inc. are top notch. Very professional, responsive, and reasonably priced. Wire Works most recently assisted as with all our electrical needs for a complete kitchen remodel - new outlets, switches, can lights, pendant lights, stove hookup, etc. When the team wasn't able to complete all tasks on the scheduled day for our rough electrical, they found a way to squeeze us back into the schedule so our kitchen remodel could stay on schedule. Tom Mullaney is one of the nicest people you'll meet, and provides an outstanding service. I won't use anyone else."
Setting approximate placement for client to visualize where lights would hang over island.
Island Lighting
Laser utilized for centering new fixture placement.
New fixtures installed. Previous fixture location patched for drywall finish repair work. Lights 100% functional and a great accent for the kitchen!
Laying out of 2x4 base over the edges of the cabinets beneath for weight distribution.

+5

Response time3 days
Response rate100%
10 neighbors recently requested a quote
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Avatar for PM Technologies
PM Technologies
3.7(
16
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Saint Johns, MI and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Great John the installer did a great job"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

18 neighbors recently requested a quote
Recommended by42%of homeowners
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Avatar for The Service Professor, Inc. - Electrical
The Service Professor, Inc. - Electrical
4.3(
1,050
)
Fixed Generator - InstallFixed Generator - Repair

Serving Saint Johns, 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%
155 neighbors recently requested a quote
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Avatar for ELITE ELECTRIC LLC
ELITE ELECTRIC LLC
5.0(
10
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Saint Johns, MI and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"John was fantasic, professioanl and polite. Showed up early, with everything needed to complete my electric baseboard install in a timely manner. Have faith with hiring Elite Electric!"
9 neighbors recently requested a quote
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Avatar for Electrical Innovations LLC
Electrical Innovations LLC
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Saint Johns, MI and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"Jarod did an excellent job. Completed an EV outlet install in a few hours. He came out to do an estimate and had all the supplies he needed in his truck and hired him on the spot. Fair pricing and very neat a clean work. EV outlet works like a charm. Will definitely hire him to do future work at my house."
Basement remodel
Landscape lighting
Network system
Local Landscape Lighting Project
Local Landscape Lighting Project

+21

Response time2 days
Response rate100%
24 neighbors recently requested a quote
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Avatar for Next Generations Power, LLC
Next Generations Power, LLC
4.6(
24
)
Portable Generator - Repair

Serving Saint Johns, 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 Positive Electric, LLC
Positive Electric, LLC
4.6(
27
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Saint Johns, MI and surrounding areas

In business since 2012

Free estimates

"Had other expenses come up, so will do project with this contractor soon."
Church Lighting Upgrade After
Church Lighting Upgrade After
Church Lighting Upgrade Before
Church Lighting Upgrade Before
Storage Condo meter pack

+4

Response time8 hrs
Recommended by95%of homeowners
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Showing 1-10 of 21
Generator Install questions, answered by experts

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.

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.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

The Saint Johns, MI homeowners’ guide to generator installs

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

See all articles