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Best generator install pros near Williston, ND

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

Avatar for ACT1V8 Electric, LLC
ACT1V8 Electric, LLC
4.7(
23
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair+3 more

Serving Williston, ND and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Aaron the owner came out on a weekend too do a wiring inspection on a house my wife and I just moved into. I made several calls trying too find an electrician and in a timely manner. Several tried to upcharge (and didnâ t know I am a licensed contractor in the state I just moved from. ) He provided not only honest answers but a fair affordable price that I can safely feel confident calling again for any further electrical needs"
Electrical Wiring
Electrical Wiring
Panel Upgrade
Panel Upgrade
Electrical Wiring

+4

Response time2 days
Response rate87%
17 neighbors recently requested a quote
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Avatar for Denny's Electric, LLC
Denny's Electric, LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Williston, ND and surrounding areas

In business since 1978

Free estimates

Credit card accepted

With years of experience serving the Dickinson area, we are your solution for all your electrical needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

Residential
Simle Middle School
Stark County Veterans Pavilion
Oilfield Equipment
Oilfield Electrical

+2

Response time10 hrs
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LED Electric, LLC
5.0(
1
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Williston, ND and surrounding areas

In business since 1999

Free estimates

LED 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, are what makes us true professionals. Above all, we are watchful of the interests of our customers' and make their concerns the basis of our business.

Response time1 day
Recommended by100%of homeowners
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Minards Electric LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Williston, ND and surrounding areas

In business since 2015

Credit card accepted

Offers commercial services

Minards 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

Response time10 mins
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Avatar for Wehrman Electrical Services LLC
Wehrman Electrical Services LLC
New to Angi
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Williston, ND and surrounding areas

In business since 2018

Free estimates

Credit card accepted

Our mission at WEHRMAN ELECTRICAL SERVICES is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a homeowners face at the end of a project! WEHRMAN ELECTRICAL SERVICES stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

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Goodman Contracting
New to Angi
Fixed Generator - Install

Serving Williston, ND and surrounding areas

In business since 2013

Free estimates

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

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Generator Install FAQs, answered by experts

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

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.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The Williston, ND 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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