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TRUSTED BY WASHINGTON, MI HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon12
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Washington, MI

*The Angi rating for Generator Install companies in Washington, 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 Washington, 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 01, 2025

Find Generator install pros in Washington

Avatar for Mr. Electric
Mr. Electric
4.5(
42
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Washington, MI and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Very happy with my experience with Mr. Electric. I have used them to put in my whole house generator. They were great. Sam Stone is awesome. He showed up on time and upgraded our panel box. I found him to be very professional and knowledgeable. I would highly recommend this company and Sam Stone for all electrical services"
Response time8 hrs
17 neighbors recently requested a quote
Recommended by80%of homeowners
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St. John Electric
4.9(
69
)
Fixed Generator - InstallPortable Generator - Install

Serving Washington, MI and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"I would give Kevin and St. John Electric 10 stars if I could. He put in a fairly challenging outlet for me and also a second outlet for a freezer in the basement and did an excellent job. Very reasonable pricing. I will definitely be calling him in the future for a generator installation. I recommend him highly and without reservations."
Response time1 day
3 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Electrician Near Me LLC
Electrician Near Me LLC
5.0(
14
)
Generator - Install - For Business

Serving Washington, MI and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Andrew came to our house between Ann Arbor and Plymouth at 8 PM on Tuesday when a storm caused an electrical outage. We had a generator but we're only getting partial power in the house. Andrew ran tests inside the house, determining that not enough power was coming into the house. He then started testing different areas of the generator until he found the part not working. Once he located the problem, he quickly fixed it. Because he didn't give up on me or my problem, he restored electricity, saving me hundreds from food spoilage in a refrigerator and freezer. I don't think most electricians would have stuck with the problem or been able or willing to fix the generator. If I could give more than 5 stars, I would."
Service panels
Wholehouse Generator
New Panel
New construction
8 neighbors recently requested a quote
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Avatar for Lighthouse Electrical Service
Lighthouse Electrical Service
4.6(
107
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Washington, MI and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Mr. Bailey assembled the fan, installed it properly and quickly. He took the old fan to the curb so that I wouldn't have to. The cost (211.50) was a bit more than I had anticipated but the value for the service was reasonable. I can wholeheartedly recommend Lighthouse Electrical Service."
Generac Generator
Panel Upgrade
EV Maintenance
Landscape Lights
Specialized Lighting

+4

Response time3 hrs
Response rate92%
2 neighbors recently requested a quote
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Avatar for Electrix, LLC
Electrix, LLC
4.7(
243
)
Portable Generator - Install

Serving Washington, MI and surrounding areas

Approved

Super Service Award Winner

In business since 1983

Free estimates

Emergency services offered

"I hired them to fix a prior electricianâ s installation of a hardwired camera doorbell that was not installed properly. They pinpointed the problem immediately and fixed it. Jeff and Brandon made me feel comfortable and kept me updated as they worked. I would not hesitate to recommend them for any electrical work."
Panel Replacement
Panel Replacement
Panel Replacement
Panel Replacement
Recessed Lighting

+18

Response time4 hrs
Response rate99%
1 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 Washington, 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

22 neighbors recently requested a quote
Recommended by42%of homeowners
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Generator Install questions, answered by experts

Costs range from $500 to $2,500, depending on generator type and installation complexity.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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 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.

The Washington, 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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