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Avatar for WireWorks Inc
WireWorks Inc
4.9(
300
)
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

"We have struggled to find accountable contractors and Wire Works finally did us justice. Laura, Chris, Jeremy and Sergei impressed us with options, communication, execution and performance. My family, from trades, are very much into code compliance, as well installation aesthetics and the Wire Works Team satisfied both on providing a new electrical service and modifying existing 1954 electrical arrangements. We are pleased to recommend Wire Works as your contractor and look forward to hiring them for future needs."
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%
3 neighbors recently requested a quote
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

"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

22 neighbors recently requested a quote
Recommended by42%of homeowners
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%
16 neighbors recently requested a quote
CRElectrical LLC
4.5(
16
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Saint Johns, MI and surrounding areas

Providing electrical services for over 20 years in residential and commercial. Generator installs from Kohler to Generac for your home or commercial settings. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

Response time1 day
Response rate100%
Recommended by80%of homeowners
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

Positive Electric, LLC, is a full service electrical contractor that emphasizes safety, professionalism, efficiency, and teamwork to provide quality electrical installations. We are licensed and insured and serve south central Michigan (Hillsdale, Jackson, Lenawee) and the Capital Region (Ingham/Clinton). Positive Electric, LLC, performs all areas of electrical work in residential and commercial. We are always on the road to serve your needs and in a prompt and timely fashion! Your satisfaction is our number one priority. Call us today at 517-260-2742 to learn why Positive Electric, LLC is the best solution for your electrical project.

 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
Michigan Critical Power
4.8(
8
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Saint Johns, 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 21
Generator Install questions, answered by experts

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

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.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

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.

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.