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TRUSTED BY SAN MATEO, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon417
    Verified electrical services reviews

Find Electricians in San Mateo

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
22 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 BayArea Electrician

BayArea Electrician

4.94(
47
)
Approved Pro

BayArea Electrician

4.94(
47
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
7 years of experience

We offer over 10 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We are committed to providing personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. Whether you are a homeowner, a business owner or a contractor, we value your business. We want to build a relationship with you as a satisfied customer by providing you with the best experience possible. We know we have done our best when one of our customers recommends us to a friend or neighbor.

"Good job."

michael n on March 2025

We offer over 10 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We are committed to providing personalized service for each individual project we take on and look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. Whether you are a homeowner, a business owner or a contractor, we value your business. We want to build a relationship with you as a satisfied customer by providing you with the best experience possible. We know we have done our best when one of our customers recommends us to a friend or neighbor.

"Good job."

michael n on March 2025


Emanuel Morales Electric

4.98(
26
)
Approved Pro

Emanuel Morales Electric

4.98(
26
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
7 years of experience

Here Emanuel Morales Electric, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Wonderful team. Well trained."

Henry C C on June 2025

Here Emanuel Morales Electric, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Wonderful team. Well trained."

Henry C C on June 2025


Avatar for Dalcon Electric

Dalcon Electric

4.56(
406
)
Approved Pro

Dalcon Electric

4.56(
406
)
Approved Pro
Customers say: Quality work
32 years of experience
Emergency services offered

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.

"Clear and knowledgeable on what my request"

Howard Y on September 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.

"Clear and knowledgeable on what my request"

Howard Y on September 2025


Aaron Murphy Electric

4.96(
35
)
Approved Pro

Aaron Murphy Electric

4.96(
35
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
17 years of experience

Aaron Murphy Electric, is family owned and operated. Proudly serving the Bay Area since 2008. At Aaron Murphy Electric, we specialize in professional, friendly and courteous electrical services for your home. With Aaron Murphy Electric, no job is too large or too small. Call us today for a free estimate!

"Aaron was great. Very professional and prompt. Handled everything required for the project. "

Marc N on August 2025

Aaron Murphy Electric, is family owned and operated. Proudly serving the Bay Area since 2008. At Aaron Murphy Electric, we specialize in professional, friendly and courteous electrical services for your home. With Aaron Murphy Electric, no job is too large or too small. Call us today for a free estimate!

"Aaron was great. Very professional and prompt. Handled everything required for the project. "

Marc N on August 2025


Avatar for CA Electrical Group 24/7

CA Electrical Group 24/7

4.93(
41
)
Approved Pro

CA Electrical Group 24/7

4.93(
41
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
23 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!

"They installed a new lighting system in our office building, and the results are fantastic. The team was professional, efficient, and communicative throughout the project. They even worked around our schedule to minimize disruption. I’ll definitely use them again for future projects"

Mark J on February 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!

"They installed a new lighting system in our office building, and the results are fantastic. The team was professional, efficient, and communicative throughout the project. They even worked around our schedule to minimize disruption. I’ll definitely use them again for future projects"

Mark J on February 2025


Avatar for Value Electrical Construction, Inc.

Value Electrical Construction, Inc.

4.63(
148
)
Approved Pro

Value Electrical Construction, Inc.

4.63(
148
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
20 years of experience

With business starting in 2000, Value Electrical Construction, has been setting the standard for great customer service and top-notch workmanship. We take pride in our work and it shows. Our attention to detail is unmatched. You will see what separates us from our competition with every project we complete. Our clients love that we are fast and efficient without ever compromising quality. We take the time to listen to you in order to give you the best options available for your project. With experience and an attitude of our clients first, your experience with us will be great every time. Why not work with the best? Feel free to contact us for an appointment.

"He listened to my concerns, repaired the electrical outlet, checked circuit breakers, and the fuse boxes. We were reassured and comfortable with his expertise."

Patricia D on April 2023

With business starting in 2000, Value Electrical Construction, has been setting the standard for great customer service and top-notch workmanship. We take pride in our work and it shows. Our attention to detail is unmatched. You will see what separates us from our competition with every project we complete. Our clients love that we are fast and efficient without ever compromising quality. We take the time to listen to you in order to give you the best options available for your project. With experience and an attitude of our clients first, your experience with us will be great every time. Why not work with the best? Feel free to contact us for an appointment.

"He listened to my concerns, repaired the electrical outlet, checked circuit breakers, and the fuse boxes. We were reassured and comfortable with his expertise."

Patricia D on April 2023


Avatar for Line Load Electric

Line Load Electric

5.00(
15
)
Approved Pro

Line Load Electric

5.00(
15
)
Approved Pro
Free onsite estimate

We are committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients. We guarantee your satisfaction!

"He did perfect professionally complete the job on time. I am very impressed and pleased from his performance."

Rakesh D on December 2025

We are committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients. We guarantee your satisfaction!

"He did perfect professionally complete the job on time. I am very impressed and pleased from his performance."

Rakesh D on December 2025


Avatar for Fitch Electric, Inc.

Fitch Electric, Inc.

5.00(
13
)
Approved Pro

Fitch Electric, Inc.

5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
6 years of experience

We are authorized Generac dealers and installers of whole home generator systems. We take pride in our customer service and customer satisfaction. From start to finish we will educate our clients and communicate thoroughly through the whole process. Additionally we take on commercial work and residential work. We offer free consultations on all aspects of work. Let us help you meet your electrical needs today.

"Lucas Fitch called me within 10 minutes of posting an inquiry on Angi. He came out the next morning, discussed the project in detail, and gave me a written estimate (which was detailed and very reasonable) that same day. The job was completed the next week by two knowledgeable, professional, and friendly technicians. What an impressive company! "

Anastasia I on August 2025

We are authorized Generac dealers and installers of whole home generator systems. We take pride in our customer service and customer satisfaction. From start to finish we will educate our clients and communicate thoroughly through the whole process. Additionally we take on commercial work and residential work. We offer free consultations on all aspects of work. Let us help you meet your electrical needs today.

"Lucas Fitch called me within 10 minutes of posting an inquiry on Angi. He came out the next morning, discussed the project in detail, and gave me a written estimate (which was detailed and very reasonable) that same day. The job was completed the next week by two knowledgeable, professional, and friendly technicians. What an impressive company! "

Anastasia I on August 2025


"Super great service. !!!!"

Kathy S on March 2025

With over 10 years' experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions, and thank you for your interest.

"Super great service. !!!!"

Kathy S on March 2025

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Showing 1-10 of 1470
Electrical questions, answered by experts

Yes, but our analogy with the water hose doesn’t really work here. You see, electrical flow isn’t constant: It ebbs and flows like waves, coming in pulses of power. Hertz measures the rate of change in the flow of electricity, or how often it ebbs and flows. For example, 60Hz means that the electrons pulse through wiring 60 times per second. When they are pulsing, they’re in a brief retreat. Almost all United States equipment is rated for 60Hz.

Yes, tamper-resistant outlets are designed to be safely used in your home. They have a spring-loaded shutter, which pops closed to internally block the slots when the outlet is not in use, protecting your child from the dangerous electrical current should they insert toys or other objects into one of the slots.

Incandescent lights are glass bulbs with metallic filaments inside, while LEDs feature “light emitting diodes” that illuminate when they come in contact with an electrical current. You can buy either for your Christmas lights, but note that LED lights are more energy-efficient and have a longer lifespan.

A C-wire is typically blue, but don’t rely on colors to find which wire is which when it comes to thermostat wires. The C-wire may also be black, brown, or purple. Instead, if you’re looking for the C-wire, look at the thermostat panel for a wire connecting to “terminal C,” or call in a pro to help you look for a C-wire.

The best light switch is user dependent. What works for one person might not work for another. Someone looking to ward off burglars may choose to install proximity light switches or anti-vandal switches, while someone who simply wants to find the switch in the bathroom without using a nightlight may prefer an illuminated light switch. Consider the location of your light switch and the features you want to help you decide on the right light switch for your home.

The San Mateo, CA homeowners’ guide to electrical services

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