Get matched with top generator install pros in Carol Stream, IL

Q: What’s the lifespan of a natural gas generator?

• <div><p>When properly maintained, natural gas generators can last a long time, as much as <b>20 to 40 years</b>. They have relatively few needs compared to generators with other fuel types. However, the generator&rsquo;s lifespan ultimately depends on how often the generator is used and for how long it&rsquo;s left running.</p></div>

Q: How do I know what size generator I need?

• <div><p>When <a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">choosing the right size generator</a> for your needs, consider a few items to help calculate the wattage you&rsquo;ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:</p><ul><li><p>Refrigerator: 600 watts</p></li><li><p>Large dehumidifier: 700 watts</p></li><li><p>Large window air conditioner: 1,400 watts</p></li><li><p>Water heater: 3,000 watts</p></li></ul><p>Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. </p></div>

Q: Do you need a permit to install a whole-house generator?

• <div><p>In many cases, you&rsquo;ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.</p></div>

Q: What are the disadvantages of a standby generator?

• <div><p>While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.</p></div>

Q: How does a generator transfer switch save me money?

• <div><p>It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you&rsquo;ll have to pay between <b>$400 and $2,500</b> to have the transfer switch installed, you&rsquo;ll recoup that amount later on when you don&rsquo;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 <a href="https://www.angi.com/articles/how-to-hook-up-generator-to-house.htm">hook up of a generator to your home</a>. </p></div>

There are 14 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Carol Stream, IL

*The Angi rating for Generator Install companies in Carol Stream, IL 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 Carol Stream, IL 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 October 26, 2025

Reviewed in June 2024
Timely professional, especially a quality .The service from Jack the general manager to the phone girlsand then I can not say enough about how great Aj and Jackup were explained every thing going on. Ty
Master Services, Inc.
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Reviewed in May 2020
We had a 2nd story cedar deck that needed replacing. The original stairs were wobbly and also needed replacing. Gene was great to work with and kept us informed throughout the process. Andrew was our installer and is a skilled carpenter and very thorough. He completely rebuilt our stairs and did...
A+ Quality General Contracting Inc
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Reviewed in June 2015
General manager Michael gave us a detailed estimate. The estimate provided us with which shrubs, trees and plants to be used. They came last week and the end product was exactly what we expected. The crew was efficient and friendlly. We are anxious use their services again.
Ross & Jack's Landscaping Inc
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Reviewed in August 2013
The service went really well. Their service worked and got rid of the bees. The technician was friendly, professional and knowledgeable. I had such a good experience I’ve entered into a service agreement for general pest control.
Chem-Wise Ecological Pest Management
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Reviewed in April 2013
The installation went fine.
Rein Electric Inc
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Reviewed in March 2013
I had them give an estimate on tree removal. I was given a price of $850, $135 more for stump removal. I read the deal as $400 worth of service for 1/2 price. It is more of a credit towards a job worth more than the coupon. When I called to inquire about the pricing, they just responded with a...
Davis Tree Care and Landscaping Inc
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Reviewed in December 2012
Dan came out with samples to take measurements and show us the options. He was very helpful and friendly during this visit, and he promptly prepared a quote afterwards. Dan has quite a vast knowledge of garage doors as is evident on the DDM website. Once we coordinated an installation date...
DDM Garage Doors
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Reviewed in January 2012
When these guys tell you they'll be there at 8 in the morning, they'll be there at 8. In fact, they were here at 7:45. No screwing around. I like it, except I was caught in the shower. In any event, they went straight to work. Again, very efficient and very clean, laying down cloth tarps to...
Thermalcraft Inc
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Reviewed in December 2008
I called Midwest Roofers to give me an estimate. They showed up the next day and gave me a computer generated proposal on site. Most of the contractors I called either did not show up or mailed me the proposal. Based on this level of service and the fact that they showed up on time, made me use...
Preferred Roofing & Exteriors
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Reviewed in October 2006
Excellent installation. The company Lowe's uses is top-rate. The installer was very friendly.
LOWE'S HOME IMPROVEMENT #1821
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