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Verified Reviews for Generator Install pros in Calimesa, CA

*The Angi rating for Generator Install companies in Calimesa, 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 Calimesa, 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 April 30, 2026

Find Generator install pros in Calimesa

Avatar for C G Electric
C G Electric
5.0(
15
)

Serving Calimesa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Credit card accepted

"CG Electric did an excellent job when he upgraded my residential panel. He performed the work in a timely manner and effectively. He was very professional and kept me informed on each step."
Response time11 hrs
Response rate86%
1 neighbors recently requested a quote
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Avatar for Mr. Watts Electric
Mr. Watts Electric
5.0(
52
)

Serving Calimesa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Ryan did a great job installing recessed lights and an outlet. He took the time to walk us through our options for installation. He was reasonably priced, and we will hire him again."
200amp Panel Upgrade
200amp Panel Upgrade
LV2 Tesla Charger
Response time7 hrs
Response rate87%
28 neighbors recently requested a quote
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Avatar for J L P ELECTRICAL SERVICES
J L P ELECTRICAL SERVICES
5.0(
36
)

Serving Calimesa, CA and surrounding areas

Approved

In business since 2001

Emergency services offered

Warranties offered

"Wallace provided outstanding electrical service from start to finish. He arrived punctually and maintained a professional demeanor throughout the project. His technical expertise was evident as he successfully installed three light fixtures, replaced one outlet, and expertly repaired another outlet. What truly set Wallace apart was his attention to detail and respect for our property. He cleaned up thoroughly as he worked, leaving no mess behind. Additionally, he was very considerate of our schedule, working efficiently without disrupting our day. I highly recommend Wallace for any electrical needs. His combination of technical skill, professionalism, and customer service makes him a standout contractor"
1
2
3
4
5

+3

Response time1 day
Response rate91%
59 neighbors recently requested a quote
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Avatar for BIG 2 SMALL ELECTRIC
BIG 2 SMALL ELECTRIC
5.0(
35
)

Serving Calimesa, CA and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Juan is excellent Electrician. He answers so many questions, provides reasonable prices, very reliable and honest. I have used for several projects on older home: install light fixtures, repairing of outside panel, repair electrical glitches and installed EV station. He even responded in pouring rain worked outside to repair an outage during a storm. Juan is the electrician you need if you are seeking excellent honest work."
Response time2 days
Recommended by100%of homeowners
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Avatar for Alset Electric
Alset Electric
4.8(
66
)

Serving Calimesa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"It went great. Eddie asked several questions to make sure we were on the same page. He made a few suggestions and got to work. He installed ceiling fans in the bedrooms and wall switches. He arrived early and was done by early afternoon. Eddie did a great job. So I asked him to install pot lights and connect to an existing switch in my kitchen. Again he did a great job. I asked Eddie to return next month to install lighting in my patio area. Thanks Eddie."
Transformer
Beautiful chandelier set up power with switch and put chandelier together piece by piece
Lighting for kitchen counters with a switch.. you can turn on and off.. really cool looking.. something different..
Trenching
Trenching

+62

Response time1 day
10 neighbors recently requested a quote
Recommended by76%of homeowners
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Avatar for Prime Electric Solutions
Prime Electric Solutions
4.7(
23
)

Serving Calimesa, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Prime Electric Solutions informed me of the Charge-Ready program offered by SCE, which gave me a rebate of $4,200 for upgrading my electrical panel if I installed an electric vehicle charger at the property. They were efficient, communicative, and very friendly. I'm extremely happy with their service and I will use them again if needed in the future."
Tesla EV Charger installed next to the main electrical panel.
Additional Photos
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Main panel upgrades are our specialty, servicing hundreds of customers a year. As our culture evolves and we require more electricity to power our home amenities, we make sure to provide a service that will exceed your expectations professionally, we process all permits with the city and schedule inspections for this service to comply with current laws.

+15

Response time2 days
1 neighbors recently requested a quote
Recommended by68%of homeowners
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Avatar for Powercore Electric, Inc.
Powercore Electric, Inc.
5.0(
35
)

Serving Calimesa, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Everything was very smooth from the bid to the installation it was all done in a timely manner, Glad I ran into Powercore inc for this project!"
1 neighbors recently requested a quote
Recommended by45%of homeowners
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Avatar for CHAMPION ELECTRIC
CHAMPION ELECTRIC
4.9(
7
)

Serving Calimesa, CA and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

Champion Electric Inc. provides the highest quality products and service in a way that honors the Lord and provides for the mental, physical, and spiritual welfare of our employees and their families while advancing the company in a way that is fun and profitable.

Additional Photos
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Additional Photos

+14

2 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 365
Generator Install questions, answered by experts

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

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.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

The Calimesa, CA 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

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