*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
Serving Calimesa, CA and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Great! Even installed a switch I bought for the fan at no additional charge."
+13
Serving Calimesa, CA and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Cleaned up as installation of fixtures were done"
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."
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."
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"
+3
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."
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!"
+62
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!"
+15
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."
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.
+14
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.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
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.
Whole house generators can power homes when electric problems hit, but they aren’t for everyone. Here’s what you should know when you’re thinking about buying.
Before installing a fixed generator, think about your use and space. Review these backup generator questions to prepare for a talk with your contractor.
Installing a portable generator can power key appliances during outages. Learn about the best backup generator questions to discuss with a pro.
