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Verified Reviews for Generator Install pros in Montgomery, MN

*The Angi rating for Generator Install companies in Montgomery, 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 Montgomery, 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 August 31, 2026

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

Avatar for Midwest Electric and Generator, Inc.
Midwest Electric and Generator, Inc.
4.1(
325
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Montgomery, MN and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"The project was done within 3+ hours and everything was perfect. I'd recommend Midwest Electric and Generator, Inc. to others."
Health Club: New Pool Area
New Custom Home: Main House
Crew
Commerical Generator Install
Generac Guardian Series 20kw

+108

Recommended by74%of homeowners
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Avatar for Engstrom Electrical Contracting, Inc.
Engstrom Electrical Contracting, Inc.
4.8(
5
)
Fixed Generator - Install

Serving Montgomery, MN and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Very friendly during estimate and very professional. My whole house was rewired and Zach and his team were on time every day, cleaned their mess at the end of their day to near spotless, always friendly and went above and beyond the call of duty 100%. Anyone with ANY electrical needs should call Eric at Engstrom electrical! Very satisfied with the work! Thank you!"
Golf course - club house
Golf course - club house
Golf course - club house
Golf course - club house
Golf course - club house

+19

Response time5 hrs
Recommended by100%of homeowners
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Rentas Electric LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Montgomery, MN and surrounding areas

In business since 2025

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

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Bring The Light Electric, LLC
New to Angi
Fixed Generator - InstallPortable Generator - Install

Serving Montgomery, MN and surrounding areas

In business since 2019

Free estimates

Emergency services offered

Bring The Light Electric 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.

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Generator Install FAQs, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

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.

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

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

The Montgomery, MN 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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