*The Angi rating for Generator Install companies in Rialto, 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 Rialto, 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
Serving Rialto, CA and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"Very polite and professional, will definitely contact them again if I need any other electrical work"
Serving Rialto, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"Perfect and smooth journey, Jorge came pre instillation to check the electrical panel and where the the charger was going to be installed and after the review he text me the cost of parts and installation, after I received the charger he came on time and the job was completed. I was updated by text messages throughout the process. In the future if I need any electrical work I definitely use JK Flores Enterprise."
+28
Serving Rialto, CA and surrounding areas
Approved
Free estimates
Warranties offered
Credit card accepted
"Pablo did a fantastic job! He connected the generator and did what other Electricians couldn’t do. He is incredibly knowledgeable. He was very professional and always on time."
+21
Serving Rialto, 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
Serving Rialto, CA and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"David was amazing. He knew what he was doing and he was very informative about the cause of my outlet issue. Got the job done and offered some recommendations to prevent the issue from happening again. I would definitely recommend."
+13
Serving Rialto, CA and surrounding areas
Approved
In business since 2016
Free estimates
Customers say: True professional
"Kevin and his team deserve an unequivocal 5-star rating for their exceptional Tesla charger installation service. Despite the challenges posed by my old condo, requiring new breakers and wiring from the second-floor service panel down to the garage, Kevin handled the task with absolute professionalism and expertise. Not only did they tackle the complexity of the installation flawlessly, but they also did so at a remarkably fair price. I wholeheartedly recommend Kevin's services to anyone in need of a reliable, skilled, and fairly priced electrician."
Serving Rialto, CA and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Carlos immediately responded to a Home Advisor inquiry to install the wiring in a new garage. We liked his work so much that we employed him to check the circuits after a leak in our rental house and to remedy a poor wiring installation at our primary residence. He returned my initial and subsequent calls immediately, was on time for all appointments and installations, completed the work within the estimated time and charged a fair price, everything one could ask for in a construction professional. We will be calling him for any and all projects in the future and will be recommending him to all our friends."
Serving Rialto, 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."
Serving Rialto, CA and surrounding areas
Approved
In business since 2003
Free estimates
Warranties offered
"Best Electrician! Prompt, neat, great work and went above and beyond my expectations! Not only did he complete the install in a timely manner, Paul also checked and fixed all the other ceiling fans that had been installed prior! I will use PS Electrical again!"
Serving Rialto, 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."
+1
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
Here’s what you can run with different wattages and types of generators:
Portable generator:
2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.
Partial to whole-house generator:
20,000 watts and above will make it seem like your home’s power is still on.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
From average costs to expert advice, get all the answers you need to get your job done.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
Learn how to find and hire a qualified generator repair pro. Get expert tips on vetting credentials, asking the right questions, and choosing the best technician.
Using a generator during a power outage is a lifesaver. Our guide will show you how to connect a generator to your house without a transfer switch.
Having a back-up power source in case of emergency is important. Here’s how to use a generator to power your house.
