*The Angi rating for Generator Install companies in Sonoma, 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 Sonoma, 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 December 20, 2025
Serving Sonoma, CA and surrounding areas
Approved
In business since 1997
Free estimates
Emergency services offered
"A lock and code for my front door was requested. I had the necessary equipment to be installed. There was a quick response from Zarco to do the work. However, price quoted was out of my budget. I appreciated their promptness in addressing my problem."
Serving Sonoma, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Project: Install Electrical Switches, Outlets. They were on time, professional and flexible. Also, discussed future projects - replacing a fixture in bathroom, and on their way out attached a smog detector the right way. I would definitely use this company again."
Serving Sonoma, CA and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Emmanuel and his team are top notch; very pleasant, professional and committed to ensuring the work is done correctly and in timely manner. Rates are reasonable, competitive. The customer service from the team is excellent. We had electrical panel replaced; sub panels installed.installed motion sensor lights & basement lights. Emmanuel kept us apprised of the work status, as it was a rental property. Highly recommend Emron Electric, Inc."
+9
Serving Sonoma, CA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Omid was great to work with. Showed up when he said he would and did an excellent job. I appreciated his honesty when he recommended the less expensive option for my project. He could have easily said the more expensive option was the only way but he didn't."
Serving Sonoma, CA and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"Quoted the lowest price of three; completed the project within 3 business days."
Serving Sonoma, CA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Five stars from start to finish. Found Bay Area Electric on Home Advisor. James called ME the next day before I could call him. He asked me for more details about the job and then sent me a very reasonable proposal. I told him I'd like to proceed and he let me know the date for install - 4 weeks out. (Trades are so busy right now!) Danny and Tua showed up 10 minutes early and were friendly and professional. The light fixture over the sink could not accommodate the can light that I wanted due to a beam, but Danny offered up an alternate fixture that looks great. He checked in with us on spacing for the remainder of the lights as well as the height for the chandelier. They worked well together and I felt like we were partners in the project with them - letting them know our preferences and then they executed beautifully. Sooo pleased! I highly recommend them and will use them again!"
Serving Sonoma, CA and surrounding areas
Approved
In business since 2024
Free estimates
Warranties offered
"I had 2 ceiling fan/lights installed in the bedrooms. Installation included 2 new circular circuit boxes in each bedroom ceiling. In addition, I replaced the kitchen ceiling light with an LED fixture. The 2 workers were very polite and professional and worked quickly and efficiently, in addition to being respectful of my personal belongings."
+3
Serving Sonoma, CA and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Installed EV charging set up. Explained whole process to me"
Serving Sonoma, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Outstanding work! I needed some rewiring done, can lights installed in the kitchen, multiple outlets and switches changed out prior to selling my house. I also had the breaker box upgraded in the garage. They did all the work with just to visits. Some items had to be ordered. Great work! Fantastic clean up! Friendly and polite! Offered me a military discount without me even asking! If I ever need electrical work again these are the folks I'm going to and you should too!"
+12
Serving Sonoma, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
We pride our company on reliability, great communication, \nintegrity, and quality work. We are experts in our trade and will do our best \nto keep you as educated as we can on your particular task or project. We are locally owned and operated. Give us a call today, we look forward to earning your business! 11 years experience in the Industry. We offer financing as well!!\n
+13
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 cost to install a whole-house generator in San Francisco, CA varies based on factors like generator size, fuel type, and installation complexity. Learn the typical price range and what influences your total cost.
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.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Portable generators are handy for many reasons, but they require care to prevent fire, electrocution, and more. Stay safe with this guide on how to use a generator.
