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Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4.64(
656
)
Approved Pro

Service Champions Heating & Air Conditioning

4.64(
656
)
Approved Pro
Super Service Award
Customers say: Super punctual
23 years of experience
Free onsite estimate

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.

"They are prompt, honest. all tech people well knowledgeable and they follow all maintenance procedures step by step. I highly recommend. Them."

Jafar A on January 2026

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.

"They are prompt, honest. all tech people well knowledgeable and they follow all maintenance procedures step by step. I highly recommend. Them."

Jafar A on January 2026


Avatar for LIMON ELECTRIC & CONSTRUCTION

LIMON ELECTRIC & CONSTRUCTION

4.74(
168
)
Approved Pro

LIMON ELECTRIC & CONSTRUCTION

4.74(
168
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
30 years of experience

We started as a small electrician business in San Francisco during the 80s. We are a third-generation family-owned business now offering full construction services ranging from small fix-it jobs to full home renovations. If you're looking to remodel or refurnish any room in your business or home, call now at (510)938-1960 for a free consultation.

"Good and steady communication; he was punctual and very knowledgeable as well"

Tina N on October 2025

We started as a small electrician business in San Francisco during the 80s. We are a third-generation family-owned business now offering full construction services ranging from small fix-it jobs to full home renovations. If you're looking to remodel or refurnish any room in your business or home, call now at (510)938-1960 for a free consultation.

"Good and steady communication; he was punctual and very knowledgeable as well"

Tina N on October 2025


Avatar for IC Electric

IC Electric

5.00(
16
)
Approved Pro

IC Electric

5.00(
16
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
Free onsite estimate

We have the experience and dedication to get the job done right! Specializing in electrical services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"I purchased a small wine cooler from Wayfair and needed installation. Before that could be done, I need electrical to the cabinet where the wine cooler would go. Ivan did the whole job for me and it looks great! I can hardly wait to use it! Ivan and his assistant were diligent and cleaned up the mess that gets made when doing work of this kind. He communicated everything that I needed to know and was very professional. I will definitely use him again."

Dolores L on December 2025

We have the experience and dedication to get the job done right! Specializing in electrical services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"I purchased a small wine cooler from Wayfair and needed installation. Before that could be done, I need electrical to the cabinet where the wine cooler would go. Ivan did the whole job for me and it looks great! I can hardly wait to use it! Ivan and his assistant were diligent and cleaned up the mess that gets made when doing work of this kind. He communicated everything that I needed to know and was very professional. I will definitely use him again."

Dolores L on December 2025


Avatar for M3 Electrical, Inc.

M3 Electrical, Inc.

4.79(
24
)
Approved Pro

M3 Electrical, Inc.

4.79(
24
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
26 years of experience

M3 Electrical, Inc., is a Service Disabled Veteran Owned electrical business operating in East Contra Costa County. We specialize in professional, expert and friendly electrical work for your beautiful home or office. No job is too big or too small. Proudly serving Discovery Bay, CA area. Call us Monday through Friday for appointments, not available to make appointments Saturday and Sunday.

"I am an Electrical Engineer by education and trade, working for several high-tech firms in Silicon Valley over a 45-year career, so I've never felt the need to call an electrician. But I know my limits and repairing an electrical open circuit routed in underground conduit is one of them. After trouble shooting the issue, I knew there was a break in the line so I called Mike at M3 electrical. He put me on his schedule, showed up on that date (even a little early) and in less than two hours had the issue fixed. Not only that, but he advised the type of 2-wire Romex that had failed was not the proper wire for an underground application. He pulled about 75 feet of the proper wire through the conduit and even installed a junction box at my street light for a clean installation. Costly you think? Not in my opinion! If I ever need electrical work done in the future, Mike is the guy I will call. I suggest you do as well. Mark S. A very happy customer"

Mark S on July 2025

M3 Electrical, Inc., is a Service Disabled Veteran Owned electrical business operating in East Contra Costa County. We specialize in professional, expert and friendly electrical work for your beautiful home or office. No job is too big or too small. Proudly serving Discovery Bay, CA area. Call us Monday through Friday for appointments, not available to make appointments Saturday and Sunday.

"I am an Electrical Engineer by education and trade, working for several high-tech firms in Silicon Valley over a 45-year career, so I've never felt the need to call an electrician. But I know my limits and repairing an electrical open circuit routed in underground conduit is one of them. After trouble shooting the issue, I knew there was a break in the line so I called Mike at M3 electrical. He put me on his schedule, showed up on that date (even a little early) and in less than two hours had the issue fixed. Not only that, but he advised the type of 2-wire Romex that had failed was not the proper wire for an underground application. He pulled about 75 feet of the proper wire through the conduit and even installed a junction box at my street light for a clean installation. Costly you think? Not in my opinion! If I ever need electrical work done in the future, Mike is the guy I will call. I suggest you do as well. Mark S. A very happy customer"

Mark S on July 2025


Avatar for Amber Electrical Service

Amber Electrical Service

4.94(
16
)
Approved Pro

Amber Electrical Service

4.94(
16
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

We understand that every business and home has a project and every project has a budget. Our team of professionals works with each client to create a custom solution to fit their needs. We make sure to deliver the right results at the right price. So just when you thought that hiring a professional electrician was "not in the budget," think again! We will work with you to do everything we can to make your vision become a reality! With over 10 years of experience we pride ourselves on offering our customers the highest quality work at the lowest possible price. Our customers are always our priority, we do everything we can to be sure that each project is completed on budget, on time, with 100% customer satisfaction. 925-483-6108 CALL or EMAIL US TODAY [email protected]

"Good customer service. The work done was explained in detail."

Carmen H on February 2024

We understand that every business and home has a project and every project has a budget. Our team of professionals works with each client to create a custom solution to fit their needs. We make sure to deliver the right results at the right price. So just when you thought that hiring a professional electrician was "not in the budget," think again! We will work with you to do everything we can to make your vision become a reality! With over 10 years of experience we pride ourselves on offering our customers the highest quality work at the lowest possible price. Our customers are always our priority, we do everything we can to be sure that each project is completed on budget, on time, with 100% customer satisfaction. 925-483-6108 CALL or EMAIL US TODAY [email protected]

"Good customer service. The work done was explained in detail."

Carmen H on February 2024


"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


Avatar for Bay Easy Construction

Bay Easy Construction

4.72(
116
)
Approved Pro

Bay Easy Construction

4.72(
116
)
Approved Pro
Super Service Award
Customers say: Quick response
20 years of experience
Free onsite estimate

With Bay Easy you can put your mind as ease knowing that true professionals will make reality of your constructional visions. We do it all from old remodeling projects to new construction. We believe that the communication between client and provider is key, and we are always available and quick to reply to any of your questions thoroughly, helping our customers to always maintain their comfortability and security about their project at all time. The customer will be fully covered with the implementation of a payment schedule, where the work is charged for by stages based on completed work. Bay Easy Construction has over a decade of experience and wisdom in the craft, and we provide a premium service to the highest of quality. We strive to be affordable and competitive in our pricing without compromising on the quality we provide. Count on us transform your dream home to a reality.

"Excellent work done by Jorge sent by Bay Easy Construction. Good communication, top class craftsmanship, professional and helpful. Definitely recommend for any household projects."

Siva R on November 2025

With Bay Easy you can put your mind as ease knowing that true professionals will make reality of your constructional visions. We do it all from old remodeling projects to new construction. We believe that the communication between client and provider is key, and we are always available and quick to reply to any of your questions thoroughly, helping our customers to always maintain their comfortability and security about their project at all time. The customer will be fully covered with the implementation of a payment schedule, where the work is charged for by stages based on completed work. Bay Easy Construction has over a decade of experience and wisdom in the craft, and we provide a premium service to the highest of quality. We strive to be affordable and competitive in our pricing without compromising on the quality we provide. Count on us transform your dream home to a reality.

"Excellent work done by Jorge sent by Bay Easy Construction. Good communication, top class craftsmanship, professional and helpful. Definitely recommend for any household projects."

Siva R on November 2025


Burkin Electric

5.00(
11
)
Approved Pro

Burkin Electric

5.00(
11
)
Approved Pro
Customers say: Quick response
36 years of experience
Free onsite estimate

*Residential service work. *2 year residential apprenticeship program *4 year commercial and industrial apprenticeship program. *45 years and active member of International Brotherhood of Electrical Workers Union of America. *Sole proprietor 32 years.

"I hired Jim to replace our electrical panel, and he is truly an old-school electrician who went through proper, comprehensive training—you don’t see that much anymore. He did an excellent, high-quality job. I would absolutely give him 10 stars if I could.I "

Sandra N on January 2026

*Residential service work. *2 year residential apprenticeship program *4 year commercial and industrial apprenticeship program. *45 years and active member of International Brotherhood of Electrical Workers Union of America. *Sole proprietor 32 years.

"I hired Jim to replace our electrical panel, and he is truly an old-school electrician who went through proper, comprehensive training—you don’t see that much anymore. He did an excellent, high-quality job. I would absolutely give him 10 stars if I could.I "

Sandra N on January 2026


Avatar for Prosper Construction Development, Inc.

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Fast response and clear communication throughout the process."

Marco T on April 2025

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Fast response and clear communication throughout the process."

Marco T on April 2025


"Robert did an excellent job installing LED ceiling lights in our family room. I couldn't be happier with the finished work. The installation was very neat and professional. I would not hesitate to call Robert again for any future work. I will be referring Robert to anyone that may need some electrical work."

Dan F on March 2020

We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers.

"Robert did an excellent job installing LED ceiling lights in our family room. I couldn't be happier with the finished work. The installation was very neat and professional. I would not hesitate to call Robert again for any future work. I will be referring Robert to anyone that may need some electrical work."

Dan F on March 2020

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Generator Install questions, answered by experts

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

When installed and used correctly, generators are safe to use. The most critical generator safety tips to keep in mind are:

  • Never use a portable generator inside an enclosed space, as the carbon monoxide exhaust it creates is lethal.

  • Never attempt to connect your generator to your home’s electrical panel independently; hire a professional for this dangerous job.

  • Never overload your generator by connecting more appliances than for which it’s rated; you can damage your generator and appliances or even cause a fire.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

Whole-house generators can last 20 to 40 years with normal operation and proper maintenance. If you look up the specifications for your generator, you may be able to find a lifespan rated in hours of operation. Life expectancy will vary depending on how often and for how long you use the generator each year. Choosing a fuel with low impact like natural gas or diesel can help generators last as long as possible.

The Knightsen, CA homeowners’ guide to generator installs

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

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