
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

*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
"I am updating my rating for CA Electrical (Unfortunately Angi will not allow me to edit, so I am posting this as a new review). After posting my original review I was contacted by CA Electrical. The supervisor assured me that my experience was not their normal practice and that they normally made sure to call if there was a change of plans. I felt that they were earnest in trying to make things right, so I agreed to give them another chance. I ultimately decided to select them for my project to replace sub panel and install outlets. The crew was excellent and professional. They showed up on time, were professional and friendly, took extra care to ensure work spaces were left clean. Their workmanship was excellent and they did a great job of cleaning up some messy electrical wiring that had been there before. As an electrical engineer, I also appreciated the crews knowledge of code and ability to explain the technical side of the installation. I would use them again."





+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
"We needed work done involving three different trades and were hoping to find one company that could complete all aspects of the job. The work included sheetrock replacement (including texturing to be paint-ready), laminate flooring & padding installation, and bath vanity install & connect water lines. We received estimates from four different companies and chose Armando Espinoza Villa Handyman. Armando came over to see and discuss the job and provided an estimate later that day. He has a calm, low key demeanor and did a good job of listening to what we needed done. His pricing was fair, and he has experience in all the areas involved in our project. He also has many very good reviews on Angi, which was a factor in hiring him. Additionally, we Googled his company to see photos of his work. Armando completed all of the work on our house in just over two days. His work looks professional and we're very pleased with how it turned out. We'd hire him again. We've included photos."





+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.

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.

Having a back-up power source in case of emergency is important. Here’s how to use a generator to power your house.

Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.

Depending on your needs, many types of generators can power your home, RV, or campsite. Check out our guide for the best types of generators.