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Verified Reviews for Generator Install pros in Fontana, CA

*The Angi rating for Generator Install companies in Fontana, 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 Fontana, 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 18, 2026

Find Generator install pros in Fontana

Avatar for Casaroja Electric Inc
Casaroja Electric Inc
5.0(
19
)
Fixed Generator - InstallPortable Generator - Install

Serving Fontana, 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."
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade

+1

3 neighbors recently requested a quote
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Avatar for Quality Electric Corp
Quality Electric Corp
5.0(
17
)
Fixed Generator - Install

Serving Fontana, 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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Avatar for Solar Service Professionals, Inc.
Solar Service Professionals, Inc.
4.9(
56
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Fontana, 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 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 Direct Electric Company
Direct Electric Company
4.6(
151
)
Fixed Generator - InstallGenerator - Install

Serving Fontana, 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."
Tesla Wall Connector installation
Exterior wall light installation
Pendants and small chandelier installation
Recessed can lighting and ceiling fan installation
Electrical Home Improvement

+13

Response time12 hrs
Response rate100%
4 neighbors recently requested a quote
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Avatar for ZERO ELECTRIC
ZERO ELECTRIC
4.9(
15
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Fontana, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"My experience with Zero Electric was great! James was extremely knowledgeable about home generators and walked us through several pricing options that fit our budget. Their work was clean and efficient and I will definitely be hiring him in the future for our electrical issues."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

1 neighbors recently requested a quote
Recommended by46%of homeowners
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Trout Electric
4.3(
20
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Fontana, 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
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Avatar for McKee Electrical Contracting
McKee Electrical Contracting
5.0(
2
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Fontana, CA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"They are knowledgeable and installed the car charging station in my garage. I had compared with other companies who seemed to be cutting corners, and I felt McKee was doing things the right way so I chose them. His communication was good, he was on time, and followed through on what he said he would do. Good, clean, and professional. I intend to have him back out for my next electrical project."
ELECTRICAL Projects
ELECTRICAL Projects
ELECTRICAL Projects
ELECTRICAL Projects
Response time20 mins
Recommended by100%of homeowners
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Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Portable Generator - Repair

Serving Fontana, 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
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Showing 1-10 of 157
Generator Install questions, answered by experts

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

The Fontana, 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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