*The Angi rating for Generator Install companies in Alameda, 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 Alameda, 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 July 22, 2025
Serving Alameda, CA and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"They did a very good work and quick."
+2
Serving Alameda, CA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Anthony fit me into his schedule last minute to install a ceiling fan. He showed up on time, was friendly and did a great job. Absolutely no complaints and would hire again."
+20
Serving Alameda, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"Very professional, great work, and very willing to please. They removed all the knob and tube wiring and brought my house up to current code. And the great thing is, they were very reasonable in price, actually they blew all my other bids out of the water. Five generations of electricians, and it shows. I would recommend them to anyone. Thank you to you both for a great job."
+123
Serving Alameda, CA and surrounding areas
Approved
In business since 1994
Free estimates
Credit card accepted
"If I could give them 10 stars I would!!!!! Matt and Monica are business owners who really know what customer service is all about . From the first estimate to the completion of the job, it was a great experience . The attention to detail and quality is unmatched . In the day and age where it?s hard to find good people you can trust on price and to deliver on quality Mr Electric truly shines . I couldn?t be happier with them and will recommend them to anyone and everyone I can . Give them a call for all your electrical needs you won?t be disappointed!!"
Serving Alameda, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Perfect Star is a top notch company with top notch personnel. I had my home HVAC system completely replaced and, from start to finish, Perfect Star provided outstanding service. The sales rep, Enrique, took the time to understand my current issues and concerns and offered viable solutions. The Perfect Star Install Manager, David, also inspected our system to confirm the right solution would be in place even prior to ever signing a contract. The Installation Team of Austin, Emanuel and Ray provided a through and professional installation. David, the Install Manager, was once again also on the scene to lend his expertise to the installation. I strongly recommend this company for any of your HVAC needs. Perfect Star is honest, professional, offers competitive pricing and are the best experts in their field."
+8
Serving Alameda, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"Single Line Electric replaced the sub-panel (fuse box) for our house. My wife works from home, so we needed to schedule it for a day she was working in her Oakland office. Scheduling was not a problem. We got a competitive price, and the work crew was friendly and courteous. After the sub-panel was installed, the crew went through the house to make sure all electric outlets were functioning and properly labeled. They cleaned up thoroughly. My wife had purchased a ceiling fan that had not been installed. I asked the work crew if they could add that to the work order. No problem. Single Line will be my first call for future work."
Serving Alameda, CA and surrounding areas
Approved
In business since 2015
Credit card accepted
Customers say: True professional
"It was an easy fix! Didn’t have to hire them."
Serving Alameda, CA and surrounding areas
Approved
In business since 2018
Emergency services offered
Small jobs welcome
"Emanuel (and his daughter as helper!) did a great job installing a 240v EV charging station at my home last month. He was able to give me a bid after I sent him some pictures and rough measurements and when he came out to my home to do the installation, recommended a much better way to do the install (that no other electrician, even those who gave me bids after in-person visits, offered as an option). It's been working fine thus far.. I'd definitely recommend Emanuel. Thanks."
Serving Alameda, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Customers say: True professional
"Armando is very professional, and I almost did not hire him because of a previous review he had on his feedback. Therefore, I received another quote from a higher rated area contractor who also stated prices were better. The other company failed to show up as scheduled, but arrived the following day and his prices were higher than Armandos quote. He did a fantastic job, price was fair, and was promt. He is trust worthy too, I had to run to my daughters college, 3.5 hours later, I arrived back at home..everything was perfectly installed, other items working in tip-top shape. He is respectful, and he is picks up after himself (and some of my extra dog hair too). Armando is my new, go to handyman. I am sure you will find him great.. He serves the Pleasanton area toom"
+9
Serving Alameda, CA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Ray was instrumental in upgrading the electrical in my townhome, including installing new recessed lights, light fixtures, replacing receptacles with new ones and modern cover plates. He also relocated and installed a new subpanel providing dedicated circuits to appliances and the newly installed recessed lights. Ray is incredibly knowledgeable and very easy to work with and I would recommend him and happily use his services again."
+36
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.
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.
Whole house generators are a power alternative that can deal with frequent blackouts and other problems. Here’s how they function.
Before installing a fixed generator, think about your use and space. Review these backup generator questions to prepare for a talk with your contractor.
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.
