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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
32 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
2 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

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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. 

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

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.