Top-rated generator install pros.

Get matched with top generator install pros in Costa Mesa, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Costa Mesa, CA?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Costa Mesa, CA

*The Angi rating for Generator Install companies in Costa Mesa, 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 Costa Mesa, 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 September 23, 2026

Find Generator install pros in Costa Mesa

Avatar for Casaroja Electric Inc
Casaroja Electric Inc
5.0(
19
)
Fixed Generator - InstallPortable Generator - Install

Serving Costa Mesa, CA and surrounding areas

Approved

Emergency services offered

Warranties offered

Offers commercial services

"Sergio did a fantastic job! Very happy with the clean install of my tier 2 charger and he added a plug down below my panel. Would recommend for any sort of EV charging installs! Clear communicator, showed up when he said he would and his services were well-priced!"
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade

+1

1 neighbors recently requested a quote
Request Quote
Western Sunset Builders
4.7(
18
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Costa Mesa, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Very happy with the work completed by Bill (owner), Josh and Pat. Bill always responds promptly to text and calls and explains things clearly. Provided free quote and visited the house to confirm quote. Josh and Pat arrived on time and worked neatly. Josh was able to avoid trenching thru the ceiling even though attic space was limited. They even put back closet shelf that had to be removed to access attic. Josh and Pat even came by another day to help install a remote that I did not have on the day of installation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+30

Response time10 hrs
Response rate100%
Recommended by64%of homeowners
Request Quote
Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Portable Generator - Repair

Serving Costa Mesa, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I hired home pro remodeling to put pavers on my back yard and to install flloring thorough out the whole house I'm super setasfied with the work and the service . The company also provided me great financial options which I used thank you kobi Leo and Lucas for your great service . Highly recommend them for everyone"
Response time5 days
Recommended by77%of homeowners
Request Quote
Avatar for EnergyAid
EnergyAid
3.6(
130
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Costa Mesa, CA and surrounding areas

Approved

In business since 2012

Emergency services offered

Warranties offered

"Tech was on time friendly and professional. Thorough and diagnosed the issue Waiting to hear about parts and installation. So far 5 stars."
Voltage Testing
Solar Panel Removal and Reinstall
Two Batterys
Bird Skirt
Communication Repair

+20

Response time1 day
Response rate97%
6 neighbors recently requested a quote
Request Quote
Avatar for Eddie's electric
Eddie's electric
5.0(
1
)
Portable Generator - Repair

Serving Costa Mesa, CA and surrounding areas

Approved

Small jobs welcome

Credit card accepted

"Excellent work. From the start he showed professionalism, punctuality, and great attention to detail. The installation was clean, well organized, and working perfectly both indoors and outdoors. He also explained everything clearly and made sure everything was safe and ready to use. I definitely recommend him for any electrical work — reliable service and top-quality results."
Request Quote
Avatar for PINEDA ENERGY SOLUTIONS
PINEDA ENERGY SOLUTIONS
5.0(
1
)
Fixed Generator - InstallPortable Generator - Repair

Serving Costa Mesa, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"The work was completed by friendly staff in full compliance with city code requirements."
Recessed lights
Recessed lights
Tesla wall conector
Recessed lights
Recessed lights

+6

1 neighbors recently requested a quote
Request Quote
Avatar for A electric
A electric
5.0(
1
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Costa Mesa, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"He was great. Needed lights and outlets installed through the whole house. Did an amazing job at an amazing rate. Will be using him again!"
Lighting for stairs
Lighting for stairs
Adding plugs
Adding plugs
Adding plugs

+1

2 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 181
Generator Install questions, answered by experts

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

The Costa Mesa, CA homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

See all articles