*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
"Came by to give me a quote to install my level two EV charger. Quote was extremely reasonable, and they said they could do the install right there and then. It was awesome. I will absolutely hire them again."
Serving Alameda, CA and surrounding areas
Approved
In business since 2015
Credit card accepted
Customers say: True professional
"We highly recommend Mendez Electric for any electrical and/or general construction work you need done on your home. We hired Mendez Electric, a multi-generational family business, in 2024 at the recommendation of a neighbor who had used them to completely rewire their 100-year-old home in Berkeley's Elmwood neighborhood. Mendez Electric did a full inspection and report of our electric system, which still included a lot of knob and tube. We ultimately hired Mendez Electric to undertake a major electrical project (six figure project) for our older home which included: 1) a complete system/wiring upgrade and installation of a 300 amp service panel upgrade. This work included all relevant permitting and coordination with PGE. Mendez Electric’s staff are highly knowledgeable, efficient, communicative, competitively priced and focused on high customer service. We have hired Mendez Electric in subsequent months to handle several smaller general construction projects, e.g., cement/sidewal"
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 and his team were flexible and bright great ideas to the table. we fully upgraded electrical to code and got ready for solar. the team did a great job protecting the home, talking us through the changes dictated by code and responding to news requests on the fly. most importantly, ray pulled permits from the city and PGE much faster than i expected; a very pleasant turn of events!"
+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.
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.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
