Top-rated generator install pros.

Get matched with top generator install pros in Randall, MN

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Randall, MN?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Randall, MN

*The Angi rating for Generator Install companies in Randall, MN 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 Randall, MN 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 January 19, 2026

Find Generator install pros in Randall

Avatar for Swenson Electric
Swenson Electric
4.7(
137
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Randall, MN and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Professional, Prompt, and Courteous! Nathan helped me complete two other small projects in addition to the two fixture installations that I contacted him about!"
Response time2 days
37 neighbors recently requested a quote
Recommended by96%of homeowners
Request Quote
Avatar for Aquarius Home Services
Aquarius Home Services
4.6(
260
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Randall, MN and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Emergency services offered

"Service install technicians were great!"
Additional Photos
Additional Photos
Additional Photos
Our Team
Response time10 hrs
4 neighbors recently requested a quote
Recommended by91%of homeowners
Request Quote
Avatar for Trapper Electric
Trapper Electric
4.3(
12
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Randall, MN and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"The 2 gentlemen that came to my home were personable, professional and patient with my questions. I will hire them again as well as recommend Mr. Curtis' co. to anyone. Mr. Curtis was also polite and professional when he met with me to provide a bid."
New 200 amp
11 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Tamm Electric, LLC
0.5(
1
)
Fixed Generator - InstallPortable Generator - Install

Serving Randall, MN and surrounding areas

In business since 1989

Free estimates

We can take on a wide range of residential and commercial electrical projects to include; full installation for additions and remodels, wiring, panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients, and guarantee your satisfaction.

Request Quote
Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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

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.

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 Randall, MN 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