What size generator do I need for a 1500-square-foot house?

• <div><p>A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the <a href="https://www.angi.com/articles/how-many-watts-house.htm">total wattage</a> of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.</p></div>

Is it better to repair or replace a malfunctioning generator?

• <div><p>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 <b>$300</b> on average, while <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">installing a new whole-house generator costs</a> around <b>$5,000 </b>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.</p></div>

Get matched with top generator install pros in Carson, IA

Q: How big of a generator do I need for a transfer switch?

• <div><p>You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator&rsquo;s largest outlet is 30 amps, you&rsquo;ll need a 30-amp transfer switch.</p></div>

Q: Do I need a permit to install a home generator?

• <div><p>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.</p></div>

Q: Can I use a generator to charge a back-up battery?

• <div><p>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.</p></div>

Q: Is it better to repair or replace a malfunctioning generator?

• <div><p>It&rsquo;s usually better to repair your generator if it isn&rsquo;t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around <b>$300</b> on average, while <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">installing a new whole-house generator costs</a> around <b>$5,000 </b>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.</p></div>

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Verified Reviews for Generator Install pros in Carson, IA

*The Angi rating for Generator Install companies in Carson, 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 Carson, 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 December 31, 2024

Reviewed in December 2024
Great work, very kind, and good quality product and installation
DC Bros LLC
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Reviewed in May 2022
Prompt service, replied right away and picked up everything I asked.
Manzer Removal Services
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Reviewed in December 2021
The team at Window World of Omaha can't be beat. The customer service and product quality is excellent. On installation, Mike and Ryan were prompt, meticulous and cared about perfection. So glad we chose this chomping to spend our dollars with. A big thank you to all the folks at Window...
Window World of Omaha Facebook
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Reviewed in September 2014
<p>The instructions given to the contractor could have been more detailed. He had questions that should have been answered in the work order. Because we used two colors of siding on a couple of sides of the house that were quite tall, we were not clear what the salesman had in mind. We had to...
K DESIGNERS HOME REMODELING
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Reviewed in August 2013
Marathon came out to my location the next day after calling them, to give me an est. for installing seven new windows, putting on shingles, soffet & fascia, gutters, insulation and siding. My windows were going to take 2 weeks to get, siding 3 weeks to order and get, so they had the est and...
Marathon Services Inc
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Reviewed in February 2013
There was a problem with the eight foot bay window. They just resolved the issue about two months ago. I love the windows and they are great quality. However, the issue was I continued to re schedule the repair. Each time I would take off work and then they would call to tell me they could not...
North Country Windows And Bath
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Reviewed in August 2012
The first day Mike and Joe and one other guy showed up and completely demo'ed the bathroom. Before they left in the evenings they cleaned up the bathroom and the outside area. They then started rewiring and changing the plumbing routes that needed to be done. In the process of rewiring the...
Schmidt Construction
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Reviewed in August 2012
Kyle is very experienced and his love for dogs shows through. Our underground fence was installed quickly and there was barely a visible line where the ground had to be dug. Kyle worked with our goldendoodle on training him with the fence. He has a wonderful disposition with animals. Our dog...
ECG Computer & Electronic Repair
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Reviewed in May 2012
We would get water in the basement after heavy rains once or twice a year. The water drainage system they installed entailed jackhammering up the basement floor along approximately 60 feet of wall. This was quite a messy project and they warned us ahead of time that we may want to place...
JERRY'S BASEMENT WATERPROOFING
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Reviewed in February 2012
They had the exact same make and model of the equipments that I wanted to replace. We got 2 fluorescent light fixtures, microwave, stove and two radios; one was like a small Bloombox and the other was a clock radio. I installed all the appliances myself. I also had the furnace fixed. They were...
SEARS HOME IMPROVEMENT PRODUCTS
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Find Generator install pros in Carson

Universal Electric Inc

4.3(

)

Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Carson, IA and surrounding areas

Approved

In business since 2004

Emergency services offered

Warranties offered

"The guys did a great job installing my ceiling fan. They were in and out in an hour. Would definitely recommend and use them in the future."

Response time8 hrs

Response rate100%

2 neighbors recently requested a quote

Fixed Generator - Install

Serving Carson, IA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"They gave several options and prices for the project. All questions were answered. Very pleasant to work with on our project."

Response time10 mins

29 neighbors recently requested a quote

Recommended by94%of homeowners

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Wire Nuts Electric Service, LLC

5.0(

)

Fixed Generator - Install

Serving Carson, IA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Done quick and efficiently. No BS"

Response time1 day

4 neighbors recently requested a quote

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The One-Man Gang Electrical Shop

5.0(

)

Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Carson, IA and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"He was extremely professional and extremely polite, His respect to his clients was great. He was flexible and very conscientious in working with me, making sure that he was not working near the room where I was working."

Project Location: Richland, WA. Installation of a temporary power pole.

+36

Recommended by100%of homeowners

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AURORA TECHNOLOGY INC

3.9(

)

Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Carson, IA and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"The association couldn't find the problem for 3 years and he found out the problems in just 3h ours. He lends me a router until he orders me my own router, it came and took the router and replace the router I purchased which identical router and needed for the job I was completely satisfied. He is technically skilled, personable individual professional, diligent methodical and he just fixes it for 3 hours and since I have a problem with my connection for..."

Recommended by71%of homeowners

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A-1 UNITED HEATING, AIR & ELECTRICAL CO., INC.

4.5(

)

Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Carson, IA and surrounding areas

In business since 1975

Free estimates

Emergency services offered

Amber 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

Recommended by100%of homeowners

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BRUCE KUTLER Electric

New to Angi

Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Carson, IA and surrounding areas

In business since 1996

All types of electical work.\nWe specialize in Older Homes.

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Cannon Solar

New to Angi

Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Carson, 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

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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.

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.

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 Carson, 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

Alison Kasch
•
Jul 10, 2026Jul 10, 2026
How Much Does It Cost to Install a Generator Transfer Switch? [2026 Data]
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
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•
Jul 9, 2026Jul 9, 2026
How Much Does a Whole-House Generator Cost? [2026 Data]
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
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•
Jul 8, 2026Jul 8, 2026
How Much Does a Natural Gas Generator Cost? [2026 Data]
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
Dan Simms
•
May 21, 2026May 21, 2026
How to Hire a Generator Installer
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
Heather Ayer
•
Jul 8, 2026Jul 8, 2026
Whole-House Generator Installation: A Complete Guide
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Becca Lewis
•
Jul 9, 2026Jul 9, 2026
Who Installs Generators? A Complete Guide
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.