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Avatar for LT Generators
LT Generators
4.3(
83
)
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
42 neighbors recently requested a quote
Recommended by87%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%
1 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

1 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 ZERO ELECTRIC
ZERO ELECTRIC
4.9(
17
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"What can't I say about James, Ernie & Bryan/Brien. I hired Zero Electric (ZE) to raise/replace my front and backyard electrical outlets. James examined the outlets & suggested what he thought would be best. When we got to the 4th outlet, I guess he must have read my facial expression that I was not convinced. He not only re-suggested how he thought these outlets should be reinstalled but physically showed me & stated why. I was convinced & agreed that his suggestion was best. He and his guys were very attentive, they listened and are personable. Even though the day was a scorcher, James said it would take 4 hrs which it did. I have had other contractors do work for me, ZE is the 2nd contractor's staff that I was very impressed with. Their work is excellent, warm, pleas'g characters and a joy to be around. I give them all the accolades along with 10 stars. Please hire them when you need fabulous & efficient electricians. Their act of kindness was exhibited by hang' my flag:)"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

6 neighbors recently requested a quote
Recommended by41%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
31 neighbors recently requested a quote
Recommended by87%of homeowners
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Showing 1-10 of 227
Generator Install questions, answered by experts

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

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.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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 Pasadena, CA homeowners’ guide to generator installs

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