*The Angi rating for Generator Install companies in Tustin, 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 Tustin, 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 April 21, 2026
Serving Tustin, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"It was amazing that Chris installed the EV so quickly with competitive price. I strongly recommend to choose Flo-Electric company for EV installers."
+7
Serving Tustin, CA and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"Nice guys. Very professional. Installed two pendant lights over the kitchen island to existing electrical boxes. They were quick and friendly and are sure we were happy with how it all looked. Thanks!"
Serving Tustin, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"Perfect and smooth journey, Jorge came pre instillation to check the electrical panel and where the the charger was going to be installed and after the review he text me the cost of parts and installation, after I received the charger he came on time and the job was completed. I was updated by text messages throughout the process. In the future if I need any electrical work I definitely use JK Flores Enterprise."
+28
Serving Tustin, CA and surrounding areas
Approved
In business since 1968
Free estimates
Warranties offered
"William and his team did a fantastic job upgrading our meter panel. They took care of all the permits and had the job done on time and on schedule. They were extremely communicative throughout the entire process and I would use them for all electrical services in the future."
Serving Tustin, CA and surrounding areas
Approved
In business since 1974
Free estimates
Warranties offered
"It went very well. Very professional. Cleaned up so well afterward, no one would know we had anything installed. He walked me through each installation to be sure I was happy with the install and knew how to work each fan. I also appreciated that he offered suggestions as to what made the most sense. A big help. On top of that, he noticed an air duct issue in the attic that we were unaware of. he took a picture of it, and shared it with me so I could get someone to fix it."
Serving Tustin, CA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Excellent work. Same day installation, no issues, fair price."
+38
Serving Tustin, CA and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Excellent quality and value, prompt install of a 200 Amp panel. Raymond and his team are A+ electricians who go above and beyond. The job site looks like new, paint/stucco meticulously patched up. Will hire again and recommend."
Serving Tustin, CA and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Paul and his team were very professional, punctual and stayed in communication about the installation process. I would definitely hire them again!"
Serving Tustin, CA and surrounding areas
Approved
Emergency services offered
Warranties offered
Offers commercial services
"Sergio and his assistant installed an EV charger at my place, and they did an amazing job. I’m so glad I hired them. Their price was reasonable compared to other contractors. I highly recommend them and would definitely use their company again for any future jobs."
+1
Serving Tustin, CA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"Impressed with Luis & team. First installed new outlets for a TV, moved an outlet, installed outdoor lights, then upgraded my electric panel. Each time great work, very reliable, and I know it’s fairly priced."
+29
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 Los Angeles, 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 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.
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.
Whole house generators are a power alternative that can deal with frequent blackouts and other problems. Here’s how they function.
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.
