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

Avatar for WireOne
WireOne
4.2(
118
)
Fixed Generator - InstallPortable Generator - Install

Serving Grinnell, IA and surrounding areas

Approved

In business since 2010

Credit card accepted

Customers say: Quality work

"Lane is a great technician! Very knowledgeable, friendly and courteous. Explained pricing options clearly and with no pressure. I would definitely request him for any future projects in my home."
Wireone Work
Wireone Work
Wireone Work
Wireone Work
Wireone Work

+5

Response time11 hrs
33 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Jensen Electric LLC
Jensen Electric LLC
5.0(
6
)
Portable Generator - RepairFixed Generator - InstallFixed Generator - Repair+1 more

Serving Grinnell, IA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

The Jensen family’s history in electrical work spans three generations. It began with Kyle’s grandfather, who spent 47 years as a maintenance electrician with Mountain Bell. That dedication to craftsmanship continued with Kyle’s father, a well-respected electrical contractor in Southern Utah. Following in their footsteps, Kyle entered the trade early—starting as an apprentice at 16, earning his Journeyman license in 2002, and achieving his Master Electrician license in 2006. With that deeply rooted family foundation, he brings decades of hands-on knowledge to every project.\n\n

Gallery
Gallery
3 neighbors recently requested a quote
Avatar for Jenson Electric, LLC.
Jenson Electric, LLC.
4.4(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Grinnell, IA and surrounding areas

In business since 2015

Free estimates

Emergency services offered

Jenson Electric is a full-service electrical contractor providing versatile solutions across residential, commercial, industrial, and telecommunications sectors. Based in Johnston, IA, we design, install, and maintain electrical systems that power people, facilities, and networks?safely, efficiently, and with minimal disruption. Our team combines ~licensed electricians, project managers, and field engineers~ to deliver projects on time, on budget, and in full compliance with applicable codes. We prioritize safety, quality, and minimal disruption to occupants and operations. \n

Response time3 days
Response rate100%
Avatar for Cannon Solar
Cannon Solar
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Grinnell, IA and surrounding areas

In business since 2023

Free estimates

Credit card accepted

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 time9 hrs
Response rate100%
Generator Install FAQs, answered by experts

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

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.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

The Grinnell, IA homeowners’ guide to generator installs

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