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

Serving Altadena, 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
31 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Gary & Son Electric
Gary & Son Electric
5.0(
41
)
Portable Generator - Install

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

Serving Altadena, CA and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quick response

"Francis responded to my Angi request immediately. He kept in touch to let me know his schedule and when he was in route. He was able to quickly assess and take care of my electrical issues which involved exterior outlets and switches. I would call on him again for any electrical needs."
Response time3 hrs
Response rate92%
Recommended by99%of homeowners
JSA Electrical Services, Inc.
4.8(
30
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Altadena, CA and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"John of JSA Electrical Services is a very nice, kind, honest man, as well as an excellent electrician! He installed in-ground landscape lighting in my front and back yards under Japanese maple trees and did other major, significant electrical repairs in my garage and house. I will definitely use his electrical services again and will recommend him very highly to others."
OUR WORK
OUR WORK
OUR WORK
OUR WORK
OUR WORK

+20

Recommended by100%of homeowners
Avatar for ADI Electrical Services, Inc.
ADI Electrical Services, Inc.
4.4(
5,641
)
Fixed Generator - Install

Serving Altadena, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"We hired ADI Electrical on 2/5/24 to do 5 different electrical jobs on our home, replace a fixture under the cabinet in the kitchen, supply and install floor outlet in the family room, supply and install new outlet for the garage ceiling, remove outlet in an old furnace closet, install new doorbell by move existing doorbell transformer to attic and fish ethernet cable from attic to junction box on side of house. Alvaro gave us a detailed estimate on 1/26 and we like their website which is very thorough and precise in its presentation. Michael the administrator in the office was very helpful in setting up appointments and anything else that was needed. Santo, Alex and Sam Adi came out on 2/6 to do the electrical work and we are extremely pleased with their attentiveness to detail and accomplishing everything that needed to be done. All the areas were cleaned up and everything was left spotless. We are very satisfied with the electrical services, and we highly recommend them."
Tesla Wall Connector / Car Charger
Tesla Wall Connector / Car Charger
Landscape  Lights
Recess Lights and Chandelier  Installation
Recess Lights  Installation

+13

Response time8 hrs
38 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Jspark Electric Inc
Jspark Electric Inc
5.0(
3
)
Fixed Generator - InstallPortable Generator - Install

Serving Altadena, CA and surrounding areas

Approved

In business since 2017

Free estimates

Offers commercial services

"Jose and team were amazing. The price was fair. The guys worked efficiently and clean. I couldn't be happier. They installed a Level 2 charger in my carport and added a main transfer switch to a location away from the main breaker box. We are very happy."
Electrical
Electrical
Electrical
Electrical
Electrical

+51

9 neighbors recently requested a quote
Avatar for Mendez Electric
Mendez Electric
4.9(
7
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Altadena, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"By far the most professional, reliable and reasonable electrician I've ever encountered. Always on time. The work is amazing. I would recommend Pablo and Mendez Electric to ANY homeowner and business. Simply superb!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time5 hrs
Response rate100%
Recommended by42%of homeowners
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Generator Install questions, answered by experts

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

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.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

The Altadena, CA homeowners’ guide to generator installs

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