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Avatar for Apollo Electric

Apollo Electric

4.97(
167
)
Approved Pro

Apollo Electric

4.97(
167
)
Approved Pro
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
20 years of experience

We specialize in 200 Amp panel upgrades, multi-family panel upgrades, whole house re-wires, electric vehicle circuits, LED lighting systems (new installations and retrofits), electrical repairs, safety upgrades, fans and troubleshooting for homes, offices and small businesses

"excellent fast response from Chris-owner. He came by same day and repaired the frayed power cord for us and we are good to go. Chris was very professional, timely, respectful and great to work with. We wIll keep his info on hand for any other electrical issues we may have in the future. Would highly recommend this company!!"

yolanda d on December 2024

We specialize in 200 Amp panel upgrades, multi-family panel upgrades, whole house re-wires, electric vehicle circuits, LED lighting systems (new installations and retrofits), electrical repairs, safety upgrades, fans and troubleshooting for homes, offices and small businesses

"excellent fast response from Chris-owner. He came by same day and repaired the frayed power cord for us and we are good to go. Chris was very professional, timely, respectful and great to work with. We wIll keep his info on hand for any other electrical issues we may have in the future. Would highly recommend this company!!"

yolanda d on December 2024


Avatar for Rashid Kaddoura

Rashid Kaddoura

4.79(
116
)
Approved Pro

Rashid Kaddoura

4.79(
116
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
7 years of experience

When it comes to reliability, We are the ones you need! Over 40 years of experience. Licensed, insured professional delivering reliable Electrical solutions. All types of Electrical works including: Electrical Panel Upgrades, EV Chargers Installation, Recessed Lights, Troubleshooting, Wiring & Rewiring, Ceiling Fan Installation and Low Voltage Electricity.

"The tech arrived on time as scheduled. I then had a brief show and tell the problem. After that he gathered his tools and started to work to resolve the problem. In 20 min the non functioning lights and fan are working. It was a great experience for me. The service was transparent and work quality was progrssional."

Chuck C on November 2025

When it comes to reliability, We are the ones you need! Over 40 years of experience. Licensed, insured professional delivering reliable Electrical solutions. All types of Electrical works including: Electrical Panel Upgrades, EV Chargers Installation, Recessed Lights, Troubleshooting, Wiring & Rewiring, Ceiling Fan Installation and Low Voltage Electricity.

"The tech arrived on time as scheduled. I then had a brief show and tell the problem. After that he gathered his tools and started to work to resolve the problem. In 20 min the non functioning lights and fan are working. It was a great experience for me. The service was transparent and work quality was progrssional."

Chuck C on November 2025


A R P Electric

4.91(
79
)
Approved Pro

A R P Electric

4.91(
79
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
11 years of experience

With over 10 years of experience as an electrician serving San Jose and the Santa Clara County area, A R P Electric has the knowledge and the integrity that you would expect from your trusted electrician. From service work, to panel upgrades and full remodels, we have you covered. Give us a call today for a free estimate!

"Ahmed did a great job of installing recessed lighting in the living room and 2 ceiling fans in the bedrooms. He also helped with a ceiling light install. Very knowledgeable and highly recommended. Will definitely work again with Ahmed on future projects."

Suraj S on September 2021

With over 10 years of experience as an electrician serving San Jose and the Santa Clara County area, A R P Electric has the knowledge and the integrity that you would expect from your trusted electrician. From service work, to panel upgrades and full remodels, we have you covered. Give us a call today for a free estimate!

"Ahmed did a great job of installing recessed lighting in the living room and 2 ceiling fans in the bedrooms. He also helped with a ceiling light install. Very knowledgeable and highly recommended. Will definitely work again with Ahmed on future projects."

Suraj S on September 2021


Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4.71(
621
)
Approved Pro

Service Champions Heating & Air Conditioning

4.71(
621
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
23 years of experience

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

" It was very good. "

Bob A on December 2025

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

" It was very good. "

Bob A on December 2025


Avatar for Dalcon, Inc.

Dalcon, Inc.

4.77(
77
)
Approved Pro

Dalcon, Inc.

4.77(
77
)
Approved Pro
Super Service Award
Customers say: True professional
47 years of experience
Emergency services offered

Finding a licensed electrician that you can trust to service or repair your property can be difficult. While some electricians offer free consultations or other specials, they often do not have the skills or expertise necessary to efficiently perform the service you need. At Dalcon Electric, we have over 40 years of experience providing high-quality electrical services for our neighbors in San Jose and the surrounding areas. We are definitely able to take care of any electrical issues you run into big, or small!

"Work went well. Mods were well planned and made without complications. "

Patrick A on July 2025

Finding a licensed electrician that you can trust to service or repair your property can be difficult. While some electricians offer free consultations or other specials, they often do not have the skills or expertise necessary to efficiently perform the service you need. At Dalcon Electric, we have over 40 years of experience providing high-quality electrical services for our neighbors in San Jose and the surrounding areas. We are definitely able to take care of any electrical issues you run into big, or small!

"Work went well. Mods were well planned and made without complications. "

Patrick A on July 2025


Avatar for Pellegrin Electric

Pellegrin Electric

5.00(
19
)
Approved Pro

Pellegrin Electric

5.00(
19
)
Approved Pro
Customers say: Quality work
26 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I have been working with Alfonso for almost 20 years. He helped us with recessed lighting installation. He is very knowledgeable in his craft and he is very professional. He always exceeded our expectation. He is highly recommendable. We will continue to hire him for electrical works. "

Eillen C on May 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I have been working with Alfonso for almost 20 years. He helped us with recessed lighting installation. He is very knowledgeable in his craft and he is very professional. He always exceeded our expectation. He is highly recommendable. We will continue to hire him for electrical works. "

Eillen C on May 2025


Avatar for Dalcon Electric

Dalcon Electric

4.81(
357
)
Approved Pro

Dalcon Electric

4.81(
357
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
33 years of experience

We are an Electrical Contracting Company providing top quality electrical services to South Bay, East Bay, and the Peninsula! David Lee, the owner of Dalcon Electric, started doing electrical work in the San Jose area over 30 years ago. Then, in 1993, he started Dalcon Electric in San Jose. With over 30 years of experience in both residential and commercial work, we take pride in our expertise and professionalism. We always give you a fair price and can often recommend ways to save you money on your electrical job. We are family owned and operated company! We are also licensed, bonded, and insured! Give us a call today! You’ll be in good hands! Ask about our Angie's List coupon and senior discounts. Award winning. Certified Copalum Installers. SPAN Certified Installers.

"Services went great. They arrived early very professional completed. The job completely cleaned up after they were done and were very professional during the entire project. I couldn’t recommend the gentleman any higher."

Chris (dad) B on July 2025

We are an Electrical Contracting Company providing top quality electrical services to South Bay, East Bay, and the Peninsula! David Lee, the owner of Dalcon Electric, started doing electrical work in the San Jose area over 30 years ago. Then, in 1993, he started Dalcon Electric in San Jose. With over 30 years of experience in both residential and commercial work, we take pride in our expertise and professionalism. We always give you a fair price and can often recommend ways to save you money on your electrical job. We are family owned and operated company! We are also licensed, bonded, and insured! Give us a call today! You’ll be in good hands! Ask about our Angie's List coupon and senior discounts. Award winning. Certified Copalum Installers. SPAN Certified Installers.

"Services went great. They arrived early very professional completed. The job completely cleaned up after they were done and were very professional during the entire project. I couldn’t recommend the gentleman any higher."

Chris (dad) B on July 2025


Avatar for Adept Electrical Solutions

Adept Electrical Solutions

4.96(
23
)
Approved Pro

Adept Electrical Solutions

4.96(
23
)
Approved Pro
Customers say: Quick response
13 years of experience

Adept Electrical Solutions is designed to bring customer focused electrical services to homeowners, property managers, and renters alike. Our goal is to bring your vision to life at an affordable price. We specialize in home lighting, panel upgrades, EV charger installation, Battery Storage, Interior load relocation, and troubleshooting. Call today for free estimates (510)512-8029

"Donte was on time, professional, and so knowledgable. I will absolutely hire Adept Electrical Solutions again for future projects!!"

Kate R on December 2023

Adept Electrical Solutions is designed to bring customer focused electrical services to homeowners, property managers, and renters alike. Our goal is to bring your vision to life at an affordable price. We specialize in home lighting, panel upgrades, EV charger installation, Battery Storage, Interior load relocation, and troubleshooting. Call today for free estimates (510)512-8029

"Donte was on time, professional, and so knowledgable. I will absolutely hire Adept Electrical Solutions again for future projects!!"

Kate R on December 2023


Avatar for Emelco Electric

Emelco Electric

4.64(
346
)
Approved Pro

Emelco Electric

4.64(
346
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
13 years of experience

EMELCO electric is an electrical contractor which provides residential and commercial electrical services. Company located in San Jose city and provides installation, remodeling and lighting for all south Bay Area . We Install/replace fixtures , fans, switches and outlets, wiring, conduits, low voltage circuits, computer networks, TV and cables. Our company provide consultation and ideas for our clients on their design/build projects.

"When I asked him if he thought I had enough amperage to do the job of drying close, he said I did. He might be correct but I had one circuit breaker trip and I had to reset it. I suspect the new dryer is faulty and may have to be replaced (I'm having other issue with the dryer and will checked out next week,) I should have asked him how much max amps the circuit could handle. Not a born english speaker but knew what he was doing."

Robert W on December 2025

EMELCO electric is an electrical contractor which provides residential and commercial electrical services. Company located in San Jose city and provides installation, remodeling and lighting for all south Bay Area . We Install/replace fixtures , fans, switches and outlets, wiring, conduits, low voltage circuits, computer networks, TV and cables. Our company provide consultation and ideas for our clients on their design/build projects.

"When I asked him if he thought I had enough amperage to do the job of drying close, he said I did. He might be correct but I had one circuit breaker trip and I had to reset it. I suspect the new dryer is faulty and may have to be replaced (I'm having other issue with the dryer and will checked out next week,) I should have asked him how much max amps the circuit could handle. Not a born english speaker but knew what he was doing."

Robert W on December 2025


Avatar for CA Electrical Group 24/7

CA Electrical Group 24/7

4.71(
45
)
Approved Pro

CA Electrical Group 24/7

4.71(
45
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
24 years of experience

CA ELECTRICAL GROUP 24/7 provides a wide range of electrical services including troubleshooting, electrical panel installs, service upgrades, complete rewiring, electrical safety inspections, new construction, remodeling projects, electric vehicle car charging stations and smart home integration. When you choose to work with CA ELECTRICAL GROUP 24/7, you will not be disappointed. Whether you need a new electrical panel at your home or new wiring at your business, we have a solution. Our team is ready to solve smaller problems before they become more significant issues for your family. We proudly serve customers in the Bay Area CA . Why choose CA Electrical Group 24/7 as your electrical contractor? There are so many reasons why we should be your top choice for an electrical contractor in San Francisco Bay Area. Our expertise and excellence in electrical make us beyond qualified for all kinds of electrical projects. We work for both residential and commercial clients. Our electricians have worked on thousands of electrical projects throughout their careers. At CA Electrical Group, they’ve helped businesses and home owners correct code violations, upgrade their lighting systems, repair their electrical networks, and so much more. Every CA Electrical Group electrician is state-licensed and bonded, and so is our business. We’re also insured in every town we serve. Aside from our years of experience and expert electricians, We also prioritize making services affordable. While other electrical contractors charge you an arm and a lag for simplest services, We make it a point to price our services at an excellent value. Because of this, you can get quality electrical services without compromising on quality!

"I was quoted $650 for a job that would take less than an hour."

Jon S on March 2025

CA ELECTRICAL GROUP 24/7 provides a wide range of electrical services including troubleshooting, electrical panel installs, service upgrades, complete rewiring, electrical safety inspections, new construction, remodeling projects, electric vehicle car charging stations and smart home integration. When you choose to work with CA ELECTRICAL GROUP 24/7, you will not be disappointed. Whether you need a new electrical panel at your home or new wiring at your business, we have a solution. Our team is ready to solve smaller problems before they become more significant issues for your family. We proudly serve customers in the Bay Area CA . Why choose CA Electrical Group 24/7 as your electrical contractor? There are so many reasons why we should be your top choice for an electrical contractor in San Francisco Bay Area. Our expertise and excellence in electrical make us beyond qualified for all kinds of electrical projects. We work for both residential and commercial clients. Our electricians have worked on thousands of electrical projects throughout their careers. At CA Electrical Group, they’ve helped businesses and home owners correct code violations, upgrade their lighting systems, repair their electrical networks, and so much more. Every CA Electrical Group electrician is state-licensed and bonded, and so is our business. We’re also insured in every town we serve. Aside from our years of experience and expert electricians, We also prioritize making services affordable. While other electrical contractors charge you an arm and a lag for simplest services, We make it a point to price our services at an excellent value. Because of this, you can get quality electrical services without compromising on quality!

"I was quoted $650 for a job that would take less than an hour."

Jon S on March 2025

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Generator Install questions, answered by experts

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

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

The cost to install a whole-house generator averages at $5,200, but costs can range from $1,500 to $8,900, depending on the type and size of the generator, and the labor required to install it. To find the best deal while still ensuring the unit meets all the needs of your household, hire an electrician to calculate the electrical load of your must-have appliances and electronics beforehand so you don’t pay for more power than you need. As always, be sure to get at least three quotes to find the ideal fit for your needs and budget.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

The Sunnyvale, CA homeowners’ guide to generator installs

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

What do you need done? We’ll find top pros.
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