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Verified Reviews for Generator Install pros in Rochester, MN

*The Angi rating for Generator Install companies in Rochester, 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 Rochester, 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 June 13, 2025

Find Generator install pros in Rochester

Capelle's Electric, LLC
4.7(
49
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Rochester, MN and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: Quality work

"Capelle Electric installed 3 ceiling fans/light fixtures for us. They are easy to work with, answered all questions we had, and finished the job in a timely manner. They cleaned up after themselves so I didnâ t have to. Keith Capelle and his partner were professional in every way. I would not hesitate to hire them again or recommend them to others."
Response time1 day
4 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Kruger Electric
Kruger Electric
5.0(
13
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Rochester, MN and surrounding areas

Approved

In business since 2006

Emergency services offered

Warranties offered

"Awesome and friendly staff and great service! You can depend on Krueger Electric to do a great job on any of electrical needs."
4 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Hero Plumbing, Heating Cooling and Electrical
Hero Plumbing, Heating Cooling and Electrical
4.3(
805
)
Fixed Generator - InstallPortable Generator - Install

Serving Rochester, MN and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"They installed our furnace 3 years ago and came out for a complimentary tune-up. The technician was friendly and knowledgeable. Great experience all around."
Team Meeting
Working Hard
Hug a Hero
Here to help
Hero Coming Soon

+9

Response time11 hrs
64 neighbors recently requested a quote
Recommended by89%of homeowners
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Redemption Electric, LLC
5.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Rochester, MN and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"They did an excellent job installing a new 240V outlet in my garage! We were able to easily schedule an appointment. They arrived to my house on time. As they were working they were extremely friendly and communicated proficiently. Once the project was finished everything looked great and the outlet works just fine. I would highly recommend for anyone needing a local electrician."
Response time2 days
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 Rochester, 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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QualityFast
New to Angi
Portable Generator - InstallPortable Generator - Repair

Serving Rochester, MN and surrounding areas

In business since 2022

Free estimates

Emergency services offered

QualityFast 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 questions, answered by experts

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

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. 

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

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

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

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

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

The Rochester, 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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