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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

"If anyone has ever had a electrical panel installed, they know it’s a long process. You are dealing with the City, Electricity Company and inspector, it is very time consuming and if you don’t know what you are doing, it becomes very frustrating. Christopher was so helpful. He was there when I had questions and explained how to get permits, who to call and when to call then. He was very professional when he installed the panels and made sure everything was done properly. He price was very reasonable and we did not feel we were being taken advantage of. I highly recommend Christopher’s Company."
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

"Put in a hook up for my generator to my home. I have an older panel, but he found a way to do it with a reasonable cost. Fair thorough 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

"Had a great experience with the technician who came to install my EV charger. During the installation, a small part was missing, and he went out of his way to drive to Home Depot to get it—really appreciated that! I also happened to have a security camera I wanted to install in the garage and asked if I could borrow his ladder. Not only did he lend it to me, but he also helped me install the camera, all without charging any extra fees. Excellent service overall—very professional, friendly, and helpful. I’ll definitely reach out again in the future. Highly recommended!"
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

"Job was done right and on time. Very professional staff and excellent communication throughout. Highly recommend!"
Tesla EV Charger installed next to the main electrical panel.
Additional Photos
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

"Excellent customer service. Showed up to install motion light and camera next day. They were very professional and fast."
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
Additional Photos
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Additional Photos
Additional Photos

+14

2 neighbors recently requested a quote
Recommended by100%of homeowners
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Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

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.

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