Get matched with top generator install pros in Claremont, CA

Q: How do I determine what size generator my house needs?

• <div><p>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.</p><p>Here are some typical wattage requirements for common 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 to 4,500 watts</p></li><li><p>Electric furnace: 5,000 to 25,000 watts</p></li></ul><p>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.</p><p>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:</p><ul><li><p>1,000 sq ft: 6&ndash;9 kW</p></li><li><p>1,500 sq ft: 7&ndash;10 kW</p></li><li><p>2,000 sq ft: 10&ndash;14 kW</p></li><li><p>2,500 sq ft: 12&ndash;16 kW</p></li><li><p>3,000 sq ft: 16&ndash;20 kW+</p></li></ul><p>For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.</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: Should I buy a solar battery or a generator?

• <div><p>If you&rsquo;re deciding between a <a href="https://www.angi.com/articles/solar-batteries-vs-generators.htm">solar battery versus a generator</a> for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don&rsquo;t have many ongoing costs. </p></div>

Q: Is a home generator a tax write-off?

• <div><p>Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.</p></div>

Q: What’s the normal lifespan of a diesel generator?

• <div><p>You can expect a diesel generator to last for up to <b>30,000 hours of use</b>, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. </p></div>

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Verified Reviews for Generator Install pros in Claremont, CA

*The Angi rating for Generator Install companies in Claremont, 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 Claremont, 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 January 12, 2026

Reviewed in January 2026
Very professional installation. It only took a few hours. The garage door and opener work great. It’s very quiet when opening and closing.
Besser Garage Doors
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Reviewed in December 2025
The installers Jayme Reniff and Tommy Heiss did an awesome job. Very professional and efficient.
Jacuzzi Bath Remodel of Detroit
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Reviewed in September 2025
Cost was low and installers were very professional.
Felikian's Carpet/National Flooring Outlet
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Reviewed in September 2025
Great... Lee knows how to install electrical dimmer lights
Heavy Duty Electric
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Reviewed in May 2025
It was amazing that Chris installed the EV so quickly with competitive price. I strongly recommend to choose Flo-Electric company for EV installers.
Flo-Electric
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Reviewed in April 2024
Very good quick installation. Was very thorough and professional. Would definitely hire these guys again.
KCP Tech Solutions
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Reviewed in March 2024
Felix did a great job installing our charging station for a Tesla.
Felix Lopez
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Reviewed in November 2023
Great guyâ s that did the installation. Highly recommend them
Path to Prosperity LLC
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Reviewed in June 2023
I would recommend this company for their knowledge, customer service, and speed of installation. After all the paperwork was done and we gave the green light to move ahead with the installation, everything was completed within a few weeks. The installers were polite, worked well, quick, and...
D.B. Kitchen & Bath Cabinets, Inc.
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Reviewed in January 2023
Very happy with the work. Installer Very knowledgeable and professional. I would hire this company again. Thank you for the great experience.
Lion Glass Installations, Corp.
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Find Generator install pros in Claremont

Casaroja Electric Inc

5.0(

)

Fixed Generator - InstallPortable Generator - Install

Serving Claremont, CA and surrounding areas

Approved

Emergency services offered

Warranties offered

Offers commercial services

"Sergio and his assistant installed an EV charger at my place, and they did an amazing job. I’m so glad I hired them. Their price was reasonable compared to other contractors. I highly recommend them and would definitely use their company again for any future jobs."

1 neighbors recently requested a quote

Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Claremont, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Highly Recommended! We have hired Zero Electric to do several jobs at our apartment complex including installing a generator, EV chargers, new panel, and even installing recessed lighting in the units. They handled all aspects of the projects and had top notch communication throughout. The team has always been quick and professional. We will continue using Zero Electric for our electrical needs."

6 neighbors recently requested a quote

Recommended by43%of homeowners

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Quality Electric Corp

5.0(

)

Fixed Generator - Install

Serving Claremont, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"I needed a fan installed in my garage and Quinn came and installed my fan. He also changed out some plugs that were bad. He did a great job and I would definitely call Quality Electric again."

Response time3 hrs

Response rate97%

1 neighbors recently requested a quote

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Solar Service Professionals, Inc.

4.9(

)

Fixed Generator - RepairGenerator - Repair - For Business

Serving Claremont, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"The installation Tech was very thorough and kept me informed while working at my house. Friendly and knowledgeable."

Solar Panel Re-install After Roof Repair

+298

1 neighbors recently requested a quote

Recommended by67%of homeowners

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Direct Electric Company

4.6(

151

)

Fixed Generator - InstallGenerator - Install

Serving Claremont, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Very satisfied! From talking to Mngr Rick getting info to the installers Josh R & Sorry Polite; helpful; cleaned up; knowledgeable. Would highly recommend."

Pendants and small chandelier installation

Recessed can lighting and ceiling fan installation

+13

Response time12 hrs

Response rate100%

5 neighbors recently requested a quote

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

Serving Claremont, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"The electricians installed two outlets and one LED light fixture in a very professional manner. They provided good advice and suggested that I consider rejunvenating my electrical panel as my home is now 26 years old without pressuring me to have it done immediately. I will definitely consider Trout Electric when I decide to have it done."

Recommended by88%of homeowners

Portable Generator - InstallPortable Generator - Repair

Serving Claremont, CA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Ricardo is the best electrician I?ve ever hired. Was very professional and friendly to talk to. Honest pricing for a meter panel upgrade. Did what he said he was going to. Also checked out some lighting fixtures I wanted to get installed in my home as I?ve had several quotes and they were just outrageously priced but he gave me the best price out of 6 electricians! Will definitely hire Rick for all my future electrical needs!!"

Response time10 hrs

4 neighbors recently requested a quote

Recommended by45%of homeowners

Portable Generator - Install

Serving Claremont, CA and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Oscar was excellent he listened to our needs and asked questions to insure that the job was done correctly. Very personable and polite. I would highly recommend him."

Response time4 hrs

Response rate94%

Recommended by87%of homeowners

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Home Pro Remodeling & Construction, Inc.

4.1(

)

Portable Generator - Repair

Serving Claremont, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I hired home pro remodeling to put pavers on my back yard and to install flloring thorough out the whole house I'm super setasfied with the work and the service . The company also provided me great financial options which I used thank you kobi Leo and Lucas for your great service . Highly recommend them for everyone"

Response time5 days

Recommended by77%of homeowners

Portable Generator - Repair

Serving Claremont, CA and surrounding areas

Approved

Small jobs welcome

"Rapid aid and did a great job. Small projects that were pending to be finished. He came in and finished everything timely and well."

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Showing 1-10 of 162

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.

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.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two.

The Claremont, CA 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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