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

Avatar for Montana Power Solutions, LLC
Montana Power Solutions, LLC
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Walkerville, MT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Justin did a great job installing our generator. From the time I contacted him, he had the generator ordered and installed within 10 days. He even fixed some wiring issues that our original electrical contractor left us with. We couldn't be happier with what he did and recommend Montana Power Solutions to everyone!"
16 neighbors recently requested a quote
GGC. Shane Gray
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Walkerville, MT and surrounding areas

In business since 1992

Free estimates

Emergency services offered

I am a professional person that takes great pride in my work, in a neat and orderly Fashion. That goes above and beyond the call of work to satisfy the customers needs, from the smallest to the largest jobs. \nRanging from residential electrical repair, new and existing to home improvement and remodeling projects.

Moonlight Electric, LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Walkerville, MT and surrounding areas

In business since 2021

Free estimates

Credit card accepted

Moonlight Electric LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. \n

Generator Install FAQs, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

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.

The Walkerville, MT homeowners’ guide to generator installs

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