*The Angi rating for Generator Install companies in Winchester, 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 Winchester, 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 March 04, 2026
Serving Winchester, CA and surrounding areas
Approved
Emergency services offered
Warranties offered
Offers commercial services
"Sergio did a fantastic job! Very happy with the clean install of my tier 2 charger and he added a plug down below my panel. Would recommend for any sort of EV charging installs! Clear communicator, showed up when he said he would and his services were well-priced!"
+1
Serving Winchester, CA and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Sonny & Josh R. were both out to install my whole house fan & did an awesome job."
+13
Serving Winchester, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Free estimates
Offers commercial services
"Very professional and knowledgeable regarding the installation of Tesla EV Wall Connectors."
+4
Serving Winchester, 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 Winchester, 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 Winchester, 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 Winchester, CA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Jeremy provided great service during the quote and installation process. He even identified a potential issue with our electrical system to have looked as we are under warranty. We appreciate the on time and professional service provided. Thank you for your assistance and if further services are needed in the future, I will look to them first."
+3
Serving Winchester, CA and surrounding areas
Approved
In business since 2012
Credit card accepted
Customers say: Quick response
"Lock and Alert Systems installed smoke detectors for me. Ryan was polite, professional and on time. He did an excellent job. I will definitely use him again for future projects."
+42
Serving Winchester, CA and surrounding areas
Approved
In business since 2003
Free estimates
Warranties offered
"Paul was very professional and did a fantastic job transitioning out my old lighting for LED lighting! I was so pleased with the quality of his work that I hired him a second time to do two other rooms."
Serving Winchester, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"It went great. Eddie asked several questions to make sure we were on the same page. He made a few suggestions and got to work. He installed ceiling fans in the bedrooms and wall switches. He arrived early and was done by early afternoon. Eddie did a great job. So I asked him to install pot lights and connect to an existing switch in my kitchen. Again he did a great job. I asked Eddie to return next month to install lighting in my patio area. Thanks Eddie."
+62
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.
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 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.
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
Installing a portable generator can power key appliances during outages. Learn about the best backup generator questions to discuss with a pro.
Natural gas generators can tap into existing gas lines so they never run out of fuel. Here’s how they work and how they’re used.
