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Top-Rated Generator install pros in South Pasadena - Updated Nov 2026

FRANCIS
4.9(
116
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving South Pasadena, CA and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quick response

"Francis returned my inquiry within 30 minutes and asked questions about the job at hand. We set up an appointment for him to look at the job (installation of chandelier) later that evening. He came to the house and quoted me and I was surprised that he was ready to install the same night. Francis did an excellent job with the chandelier intallation and was very professional. I look forward to hiring him again. Stop looking and contact Francis for your electrical needs!"
Response time3 hrs
Response rate92%
3 neighbors recently requested a quote
Avatar for Casaroja Electric Inc
Casaroja Electric Inc
5.0(
19
)
Fixed Generator - InstallPortable Generator - Install

Serving South Pasadena, 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

JSA Electrical Services, Inc.
4.8(
30
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving South Pasadena, CA and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"John was always on time, did a great job removing all of my nob and tube and replacing, in entire house including basement and attic, to make my house safe. Found other newly installed electric that was done incorrectly and fixed it. The job as done right and at a fair price. I would highly recommend him and his company to anyone."
OUR WORK
OUR WORK
OUR WORK
OUR WORK
OUR WORK

+20

Recommended by100%of homeowners
Avatar for ZERO ELECTRIC
ZERO ELECTRIC
4.9(
17
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving South Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Highly Recommended! We have hired Zero Electric to do several jobs at our apartment complex including installing a generator, EV chargers, new panel, and even installing recessed lighting in the units. They handled all aspects of the projects and had top notch communication throughout. The team has always been quick and professional. We will continue using Zero Electric for our electrical needs."
Additional Photos
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Additional Photos

+1

6 neighbors recently requested a quote
Recommended by41%of homeowners
Avatar for ADI Electrical Services, Inc.
ADI Electrical Services, Inc.
4.4(
5,641
)
Fixed Generator - Install

Serving South Pasadena, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"They were very responsive. The owner of the company was here the day after we called to inquire, and we liked his answers to all of our questions. We made an immediate decision to hire them to install a 'stand-by' generator. First, the delivery of the generator was amazingly fast and then the installation was done promptly and professionally. There were enough people here to complete the installation. Within a few days a stucco repair man was here to patch the necessary holes. All-in-all, the overall service, responsiveness and professionalism were of the highest standards. I highly recommend Mr. Ariel Kahane and his crew of ADI Electrical Services."
Tesla Wall Connector / Car Charger
Tesla Wall Connector / Car Charger
Landscape  Lights
Recess Lights and Chandelier  Installation
Recess Lights  Installation

+13

Response time8 hrs
21 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Mendez Electric
Mendez Electric
4.9(
8
)
Fixed Generator - InstallGenerator - Install - For Business

Serving South Pasadena, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

With years of professional experience, we specialize in residential and commercial electrical systems installations, EV charger installation, smart switches ,outlets ,troubleshoot electrical systems , panel upgrades, recessed lights installation ,security lights installations, new construction projects ,remodeling, entire house rewiring, ceiling fans installations, and more! We guarantee your satisfaction, and we won?t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time5 hrs
Response rate100%
1 neighbors recently requested a quote
Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Portable Generator - Repair

Serving South Pasadena, 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
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Generator Install FAQs, answered by experts

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

The South Pasadena, CA homeowners’ guide to generator installs

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