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Avatar for LT Generators
LT Generators
4.3(
82
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"I recently had a whole-house generator installed by Nick and his crew. I must say it was a pleasure dealing with this company, from the office staff to the installers. Everyone was so accommodating and mindful of my concerns and requests. The parts and tools they brought took up half of my back yard but at completion of the job, which took a full day, everything was removed and all my planters and other things were put back as before. A very seamless operation indeed. I would not hesitate to recommend LT generators."
22kw Generac Natural Gas Generator
27kw Generac Natural Gas Generator
Kohler Liquid Cooled
27kw Generac Natural Gas Generator
Kohler Air Cooled 20kW

+12

Response time2 days
27 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Gary & Son Electric
Gary & Son Electric
5.0(
41
)
Portable Generator - Install

Serving Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"Gary was the only bidder who came to the house to review the project with me. This gave me confidence that he completely understood the scope and would not hit me with change orders. His price was competitive. On the day of installation, he and his assistant (required because I needed a new cable pulled between the house and detached garage) were courteous and professional. Once the charger was installed, Gary walked me through setting up the application to confirm I had set it up properly. Gary scheduled the LADBS inspection and returned to attend the inspection. Gary is knowledgeable, trustworthy, and friendly. I would absolutely use him again for other electrical projects."
2016_La Canada Flintridge
Finished Install
2016_La Canada Flintridge
Open Panel View
Service Entrance Riser

+34

Response time10 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Casaroja Electric Inc
Casaroja Electric Inc
5.0(
19
)
Fixed Generator - InstallPortable Generator - Install

Serving 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

6 neighbors recently requested a quote
JSA Electrical Services, Inc.
4.8(
30
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving 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 HONEY BEE ELECTRIC INC.
HONEY BEE ELECTRIC INC.
5.0(
9
)
Generator - Install - For Business

Serving Pasadena, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I am just so super extremely happy with the quality of work done, no doubt exceeded my expectations. It was a challenging install to get it from the panel through up the wall, over the roof and then through the attic into the garage, about an 80 foot run. I’m extremely particular about clean minimalist aesthetics to match the modern home we have. Such beautiful work, looks like it was designed for the home. Honestly can’t wait to work with Bumblebee for future projects. His commercial experience really shines through."
200 AMP
HONEY BEE ELECTRIC
desk light
desk light
desk light

+10

Response time1 day
Recommended by50%of homeowners
Avatar for ADI Electrical Services, Inc.
ADI Electrical Services, Inc.
4.4(
5,641
)
Fixed Generator - Install

Serving 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
42 neighbors recently requested a quote
Recommended by87%of homeowners
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Showing 1-10 of 220
Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

The Pasadena, CA homeowners’ guide to generator installs

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