Top-rated generator install pros.

Get matched with top generator install pros in Grafton, ND

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Grafton, ND?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Grafton, ND

*The Angi rating for Generator Install companies in Grafton, ND is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Grafton, ND is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on April 26, 2026

Find Generator install pros in Grafton

Avatar for Denny's Electric, LLC
Denny's Electric, LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Grafton, 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
Request Quote
Avatar for H&S Electrical Services
H&S Electrical Services
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Grafton, ND and surrounding areas

In business since 2020

Free estimates

Small jobs welcome

H&S Electrical Services 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.

Request Quote
Generator Install questions, answered by experts

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 cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

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.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

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.

The Grafton, ND homeowners’ guide to generator installs

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

See all articles