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Avatar for Gary & Son Electric
Gary & Son Electric
5.0(
41
)
Portable Generator - Install

Serving Duarte, 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 time11 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Casaroja Electric Inc
Casaroja Electric Inc
5.0(
19
)
Fixed Generator - InstallPortable Generator - Install

Serving Duarte, 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

5 neighbors recently requested a quote
Avatar for ZERO ELECTRIC
ZERO ELECTRIC
4.9(
10
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Duarte, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"My experience with Zero Electric was great! James was extremely knowledgeable about home generators and walked us through several pricing options that fit our budget. Their work was clean and efficient and I will definitely be hiring him in the future for our electrical issues."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

1 neighbors recently requested a quote
Recommended by70%of homeowners
Trout Electric
4.3(
20
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Duarte, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"The electricians installed two outlets and one LED light fixture in a very professional manner. They provided good advice and suggested that I consider rejunvenating my electrical panel as my home is now 26 years old without pressuring me to have it done immediately. I will definitely consider Trout Electric when I decide to have it done."
Recommended by88%of homeowners
Avatar for Granny Electric
Granny Electric
4.6(
11
)
Portable Generator - Install

Serving Duarte, CA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"I am grateful for the excellent work and advice provided by Matt. He installed security cameras, fixed some problems with parts, installed and even helped me choose and buy indoor and outdoor lighting, found and fixed some faulty installations. He was kind, professional, communicative and helpful. I fully trust and highly recommend Granny Electric"
Granny Electric
Granny Electric
Granny Electric
Recent Projects
Recent Projects

+6

Response time11 hrs
Recommended by90%of homeowners
Avatar for M.D.H. Builders/Design/Development
M.D.H. Builders/Design/Development
5.0(
7
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Duarte, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I had an amazing experience with MDH Roofers! From start to finish, they were professional, efficient, and thorough. The team showed up on time, worked diligently, and left my property spotless once the job was done. The quality of the roofing work exceeded my expectations. They took the time to explain the process and answered all my questions patiently, making me feel confident in their expertise. I could not be happier with the result my new roof looks fantastic! If you re looking for a trustworthy and skilled roofing company, I highly recommend MDH Roofers."
New Build
New Build
New Build
New Build
New Build

+32

Response time2 days
Response rate88%
98 neighbors recently requested a quote
...
Showing 1-10 of 174
Generator Install questions, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

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.

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.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

The Duarte, CA homeowners’ guide to generator installs

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