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Verified Reviews for Generator Install pros in Defiance, IA

*The Angi rating for Generator Install companies in Defiance, IA 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 Defiance, IA 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 May 30, 2026

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

Avatar for Jenson Electric, LLC.
Jenson Electric, LLC.
4.4(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Defiance, IA and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"They were great to work with. Dana completely understood my project and sent me a very fair bid the next day. The work was completed the following week, exactly as promised. Dean and AJ were great; very knowledgeable and friendly. I will definitely call Jensen with future electrical needs."
Response time3 days
Response rate100%
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Avatar for Cannon Solar
Cannon Solar
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Defiance, 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%
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Generator Install FAQs, answered by experts

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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.

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. 

Costs range from $500 to $2,500, depending on generator type and installation complexity.

The Defiance, IA 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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