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TRUSTED BY ROCHESTER, MI HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon29
    Verified generator installs reviews

Top-Rated Generator install pros in Rochester - Updated Nov 2026

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

Serving Rochester, 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
12 neighbors recently requested a quote
Recommended by80%of homeowners
St. John Electric
4.9(
69
)
Fixed Generator - InstallPortable Generator - Install

Serving Rochester, 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
Avatar for AG Electric, LLC
AG Electric, LLC
4.8(
23
)
Portable Generator - Install

Serving Rochester, MI and surrounding areas

Approved

In business since 2009

Free estimates

Customers say: Quick response

"We have had Andy do a couple of electrical projects for us. Reasonably priced. Quality Work. He tested running the generator and made sure the electrical systems in the house were running on the new generator after the electrical upgrade. Highly recommend."
Recommended by100%of homeowners
Avatar for Electrician Near Me LLC
Electrician Near Me LLC
5.0(
15
)
Generator - Install - For Business

Serving Rochester, MI and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"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
7 neighbors recently requested a quote
Avatar for Lighthouse Electrical Service
Lighthouse Electrical Service
4.6(
107
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Rochester, MI and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"We hired Lighthouse Electrical to install a generator interlock kit for our house and am very impressed at how smooth everything went. They were the cheapest out of 5 quotes, but didn't cut any corners. Corey came out on site for a quote which added comfort that he won't try to extra bill us once the work was to be done, and we got the install scheduled within a week from calling. Christian came out to do the install and once everything was complete he vacuumed up and walked me through how to use the switch. As a cherry on top, they didn't add a surcharge for paying by credit. I couldn't be happier with the experience."
Generac Generator
Panel Upgrade
EV Maintenance
Landscape Lights
Specialized Lighting

+4

Response time3 hrs
Response rate92%
2 neighbors recently requested a quote
Avatar for PM Technologies
PM Technologies
3.7(
16
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Rochester, MI and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"We lost power after a horrific storm and we contacted them and they sent a tech out after hours and got your generator back up and running. I would highly recommend. Will use again if this ever happens again and we will be referring all of our customers, family and friends to. I'll take care of you guys!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

20 neighbors recently requested a quote
Recommended by42%of homeowners
Avatar for Jag-Wire Electric
Jag-Wire Electric
4.9(
33
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Rochester, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"CJ did an excellent job with installing new wiring from my house to my detached garage. He communicated with me every step of the way to ensure it was a good time for him to come over and work it. The wiring looks great and he put all plugs and switches exactly where we wanted them. Also did an excellent job of picking out some of the light fixtures and installing them."
Port Huron Barn
Port Huron Barn
Port Huron Barn
Port Huron Barn
Port Huron Barn

+4

Response time10 hrs
3 neighbors recently requested a quote
Avatar for 3D Electric Company, LLC
3D Electric Company, LLC
4.6(
50
)
Portable Generator - Install

Serving Rochester, MI and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I opened my service request on Friday. Dan was at my house on Saturday to install a ceiling fan and deactivate a motion detector on my outdoor light. Dan is very honest and fair. He explained what the best case and worst case scenarios prior to performing the work. He did excellent prompt work. He called a couple days afterwards to make sure that everything was working properly. Great job!"
Recommended by97%of homeowners
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Generator Install FAQs, answered by experts

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

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.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Rochester, MI homeowners’ guide to generator installs

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