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Verified Reviews for Generator Install pros in El Cajon, CA

*The Angi rating for Generator Install companies in El Cajon, 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 El Cajon, 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 16, 2026

Find Generator install pros in El Cajon

Avatar for Keil Electric
Keil Electric
5.0(
12
)

Serving El Cajon, CA and surrounding areas

Approved

In business since 2014

Emergency services offered

Credit card accepted

"Andy did a great job on wiring a new building as well as adding cat 5 wiring to my existing home. He worked around some challenging access issues for the cat 5 install and made sure everything was working before he left. The quality of all the work was outstanding. He provided some good advice in one aspect of the install in the new build, helping me avoid a costly mistake. He was very friendly, timely, and easy to work with. His prices were entirely fair. I 100% recommend Andy!"
CIRCUIT DIAGNOSIS & REPAIR
Outdoor Electrical Installation
Interior Lighting Upgrade
Outdoor Electrical Setup with Lighting Integration
Master Level Electrical

+54

9 neighbors recently requested a quote
Recommended by63%of homeowners
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Avatar for Solar Service Professionals, Inc.
Solar Service Professionals, Inc.
4.9(
56
)

Serving El Cajon, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"This team installs and services solar installations which makes the quality of their work better. They see what breaks over time on other projects and bring this experience to their own. This is my third project with them. My first was servicing a short in my system caused by an oversight by a different installer who had gone out of business."
Solar Repair & Maintenance
Installed Critter Guard
Squirrel home near solar panels
Solar Panel Re-install After Roof Repair
Solar Panel Packages

+298

1 neighbors recently requested a quote
Recommended by67%of homeowners
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Avatar for JP3 Electric
JP3 Electric
5.0(
23
)

Serving El Cajon, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Very happy with the electrical installation. Clean workmanship, great communication, and everything discussed was delivered exactly as expected. Highly recommend"
Panel
Outlet
Panelboard
Panelboard
Kitchen Lighting

+3

6 neighbors recently requested a quote
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Avatar for Mister Sparky Electric
Mister Sparky Electric
4.7(
15
)

Serving El Cajon, CA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"I had Mister Sparky come out to install a ceiling fan at my house and the experience was great from start to finish. The technician was professional, showed up on time, and got everything installed quickly and cleanly. You can tell they take pride in their work and pay attention to the details. If you’re looking for a reliable electrical company that does quality work, I’d definitely recommend Mister Sparky."
Electrical
205 neighbors recently requested a quote
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Avatar for Kent Electrical Services Inc.
Kent Electrical Services Inc.
4.3(
17
)

Serving El Cajon, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Amazing. Work done with recommendations. Great customer service and response time."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time1 day
8 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for Eddie's electric
Eddie's electric
5.0(
1
)

Serving El Cajon, CA and surrounding areas

Approved

Small jobs welcome

Credit card accepted

"Excellent work. From the start he showed professionalism, punctuality, and great attention to detail. The installation was clean, well organized, and working perfectly both indoors and outdoors. He also explained everything clearly and made sure everything was safe and ready to use. I definitely recommend him for any electrical work — reliable service and top-quality results."
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Generator Install questions, answered by experts

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

The El Cajon, 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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