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

Avatar for Swick Heating Cooling Plumbing & Electrical
Swick Heating Cooling Plumbing & Electrical
3.6(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Marquette, MI and surrounding areas

Approved (Corporate)

In business since 1977

Free estimates

Emergency services offered

Swick provides home services to Marquette, Negaunee, Ishpeming, Munising and the greater area of the Upper Peninsula of Michigan. Our services include Heating & Cooling, Electric, Plumbing, Electric Stove & Fireplace and related home services. Quality doesn't cost, it pays!

40 neighbors recently requested a quote
41 Electric
New to Angi
Fixed Generator - RepairPortable Generator - Repair

Serving Marquette, MI and surrounding areas

In business since 2018

Free estimates

Credit card accepted

41 Electric, provides complete electrical services or residential, commercial, and industrial customers. Along with new construction and exsisting remodel projects, we deliver professional grade results in office lighting, panel upgrades and any switches and fixture outlet fixes. We are licensed and experienced to provide the best quality service! Call us today.

Response time4 days
Generator Install FAQs, answered by experts

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.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

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 Marquette, MI homeowners’ guide to generator installs

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