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Verified Reviews for Generator Install pros in Brooklyn, IA

*The Angi rating for Generator Install companies in Brooklyn, 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 Brooklyn, 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 27, 2026

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Avatar for Custom Electrical Services, LLC
Custom Electrical Services, LLC
4.5(
95
)

Serving Brooklyn, IA and surrounding areas

Approved

In business since 2005

Emergency services offered

Warranties offered

"Eric Fierro did all I expected and more. He arrived on time and was patient as I was helping someone at a sale. He did his estimate and then performed the work. He was conversive, attentive, and informative all while continuing to work. When finished, other than the new outlets and ground wire one would not have known he was there. When finished the the charge for the service was what he estimated. I could not have gone better. Thanks to Eric and Custom Electric Services."
Ceiling fan and cans
Commercial Service
Electric garage heater.
LED lighting Commercial
Generator Installation

+33

Response time12 hrs
Response rate88%
Recommended by91%of homeowners
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Avatar for WireOne
WireOne
4.2(
118
)

Serving Brooklyn, IA and surrounding areas

Approved

In business since 2010

Credit card accepted

Customers say: Quality work

"The price was higher than other estimates but I got the feeling that they really knew what they were doing and the electricians made a couple of suggestions that really turned out to be good ones. They did a very high quality installation and couldn’t have been more professional and cordial."
Wireone Work
Wireone Work
Wireone Work
Wireone Work
Wireone Work

+5

Response time11 hrs
34 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Jenson Electric, LLC.
Jenson Electric, LLC.
4.4(
7
)

Serving Brooklyn, 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%
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Avatar for Cannon Solar
Cannon Solar
New to Angi

Serving Brooklyn, 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 questions, answered by experts

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.

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.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

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.

The Brooklyn, 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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