Top-rated generator install pros.

Get matched with top generator install pros in De Witt, IA

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in De Witt, IA?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in De Witt, IA

*The Angi rating for Generator Install companies in De Witt, 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 De Witt, 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 August 19, 2026

Find Generator install pros in De Witt

Avatar for PowerUp Electric
PowerUp Electric
4.6(
21
)
Fixed Generator - InstallPortable Generator - Install

Serving De Witt, IA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Had water leaking into the electric panel, reached out power up, came right out, diagnosed the issues, made permanent repair and was a very fair price"
Generac Generator
200 Amp Meter
6" Recessed Light
LED Can Lighting
Electrical Repair

+2

Response time1 day
Response rate89%
13 neighbors recently requested a quote
Request Quote
Avatar for WireOne, LLC
WireOne, LLC
4.3(
148
)
Fixed Generator - InstallPortable Generator - Install

Serving De Witt, IA and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Installers were awesome and very professional"
Wiring
Outlets
TV Mounting
Training
Design

+5

Response time11 hrs
131 neighbors recently requested a quote
Recommended by92%of homeowners
Request Quote
Avatar for Powerup Electric
Powerup Electric
5.0(
9
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving De Witt, IA and surrounding areas

In business since 2024

Free estimates

Warranties offered

"Lane came out and provided estimate for my project! He was truly great! Answered all my questions I had! Was very caring and worked with my hectic schedule! Andy came out to do the install and they got me on the schedule to complete the job so quick! I will recommend PowerUp to all my friends and family! Thank you so much!"
Whole Home Generator Installation
Added Can Lighting to Kitchen
Bathroom Light Fixture
Whole Home Generator Installation
Vanity Light

+7

Response time11 hrs
Response rate90%
Recommended by42%of homeowners
Request Quote
J W Koehler Electric, Inc.
4.8(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving De Witt, IA and surrounding areas

In business since 1969

Free estimates

Credit card accepted

J W Koehler Electric, Inc., has completed a variety of electrical projects and services for local residents and businesses. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Give us a call today!

Recommended by100%of homeowners
Request Quote
Avatar for Burke Electric
Burke Electric
4.4(
5
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving De Witt, IA and surrounding areas

In business since 1957

Free estimates

Emergency services offered

"Burke Electric was quick to respond and completed the project in a timely fashion."
Response time1 day
Response rate89%
Recommended by100%of homeowners
Request Quote
Avatar for Meister Electric
Meister Electric
5.0(
2
)
Fixed Generator - InstallPortable Generator - Install

Serving De Witt, IA and surrounding areas

In business since 1991

Free estimates

Emergency services offered

"The professional pays attention to details, he makes sure the jobs done right on the first time."
Response time10 hrs
Recommended by100%of homeowners
Request Quote
Avatar for Cannon Solar
Cannon Solar
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving De Witt, 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%
Request Quote
Generator Install questions, answered by experts

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.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

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.

The De Witt, IA homeowners’ guide to generator installs

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

See all articles