Get matched with top generator install pros in Rossmoor, CA

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

• <div><p>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 <b>$50 and $250</b>, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you&mdash;and might be required to do so by your building department&mdash;but you&rsquo;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.</p></div>

Q: Do I really need a generator transfer switch?

• <div><p>Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for <a href="https://www.angi.com/articles/what-is-an-electrical-emergency.htm">electrical emergencies</a>. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. </p></div>

Q: Are natural gas generators worth it?

• <div><p>While natural gas generators are costly, they&rsquo;re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn&rsquo;t prone to earthquakes, they offer an unlimited supply of natural gas that doesn&rsquo;t degrade over time or require storage in tanks.</p></div>

Q: Can I plug a generator directly into my house?

• <div><p>No, you shouldn&rsquo;t use an extension cord to plug a generator directly into your home without using a transfer switch. That&rsquo;s because systems like pumps and HVAC fans need a steady power source that might not be available directly from your generator alone. If you bypass the circuit breaker box, you risk damaging your electrical system, creating a risk of <a href="https://www.angi.com/articles/how-to-put-out-electrical-fire.htm">electrical fire</a> or electrical shock to you or any workers repairing lines on your local electrical grid.</p></div>

Q: What is the life expectancy of a whole house generator?

• <div><p>Whole-house generators can last<b> 20 to 40 years</b> with normal operation and proper maintenance. If you look up the specifications for your generator, you may be able to find a lifespan rated in hours of operation. Life expectancy will vary depending on how often and for how long you use the generator each year. Choosing a fuel with low impact like natural gas or diesel can help generators last as long as possible.</p></div>

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Verified Reviews for Generator Install pros in Rossmoor, CA

*The Angi rating for Generator Install companies in Rossmoor, CA 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 Rossmoor, CA 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 27, 2025

Reviewed in December 2024
David and the team at American Home Improvement Inc did a great job on my bathroom remodel. I am very happy with the result, and I would recommend them to anyone looking for a general contractor.
American Home Improvement, Inc.
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Reviewed in June 2024
Our experience with Sagi and the team at Home Upgrade Specialist for a Tesla Solar Roof installation was nothing short of exceptional. Sagi's in-depth knowledge about the product and its benefits was incredibly helpful in making our decision. The installation team, Inosente and Eric, carried...
Home Upgrade Specialist, Inc.
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Reviewed in June 2023
Mr Builder General Construction did a fantastic job on my home renovation project. Their team was professional and efficient, and the final result exceeded my expectations.
Mr. Builder General Construction, Inc.
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Reviewed in June 2015
Please get a general quote first when you make your appointment. ("About how much would it cost to ...") I experienced severe sticker shock after an hour with the design consultant, Ioana, choosing patterns and measuring. Once she wrote it out, it was over $1700. She did give me a -300...
3 Day Blinds Palm Desert
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Reviewed in July 2012
I had a great experience with Bill. He was hired by the general contractor that is overseeing repairs in my home. The contractor contacted Bill on Thursday afternoon and he was at my home mid-morning on Friday. He was professional but very personable. He gave the work his full attention and...
Bill Mullen Electric
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Reviewed in October 2011
I hired ADI Electrical, through their Angie’s List Big Deal offer, to install a new bathroom ceiling fan. ADI was on time, professional, did not charge extra to install the fan though it did not fit my existing venting, so modifications were needed, and the fan they provided as part of the Big...
ADI Electrical
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Reviewed in November 2009
This was not Gene's specialty but he referred me to Broadway Locksmith Shop in Signal Hill. This is a great example of professional conduct. Gene is an honorable man so don't hesitate to do business with him.
Gene's Lock & Key
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