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Find Electrical wiring or panel upgrade pros in Diamond Bar

Avatar for MJ Electrical Services

MJ Electrical Services

5.00(
11
)
Approved Pro

MJ Electrical Services

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

With over 25 years of experience in the Electrical industry, we are the experts you need to take care of your home or business. We focus on Panel Upgrades for residential remodel projects. We will treat your home as we would treat our own. Give MJ Electrical Services, a call today, we look forward to working with you.

"Very personable. Very fast really knows what heâ s talking about. Will definitely hire him for any other electrical needs."

Lanny D on December 2023

With over 25 years of experience in the Electrical industry, we are the experts you need to take care of your home or business. We focus on Panel Upgrades for residential remodel projects. We will treat your home as we would treat our own. Give MJ Electrical Services, a call today, we look forward to working with you.

"Very personable. Very fast really knows what heâ s talking about. Will definitely hire him for any other electrical needs."

Lanny D on December 2023


Avatar for M J Prime Electric Incorporated

M J Prime Electric Incorporated

5.00(
4
)
Approved Pro

M J Prime Electric Incorporated

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Excellent workmanship and always on time."

Rosemary L on June 2022

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Excellent workmanship and always on time."

Rosemary L on June 2022


Avatar for Granny Electric

Granny Electric

4.55(
10
)
Approved Pro

Granny Electric

4.55(
10
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
13 years of experience

Granny Electric is committed to excellence in every aspect of our business. 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Keeping this guys card!"

Wendy K on May 2024

Granny Electric is committed to excellence in every aspect of our business. 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Keeping this guys card!"

Wendy K on May 2024


S&W Electric Company

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

S&W Electric Company

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

We work extremely hard for the owner and our company strives to take care of all our client's unique needs and always have the owner's best interest at heart. We are very detailed and meticulous in our work.  Our long-term vision is for us to become your go to Contractor with capabilities to do multiple types of projects.  Call us today you'll be relieved you did. Thank you

We work extremely hard for the owner and our company strives to take care of all our client's unique needs and always have the owner's best interest at heart. We are very detailed and meticulous in our work.  Our long-term vision is for us to become your go to Contractor with capabilities to do multiple types of projects.  Call us today you'll be relieved you did. Thank you


Avatar for K H Gillette Electrical & Lighting

K H Gillette Electrical & Lighting

5.00(
5
)
Approved Pro

K H Gillette Electrical & Lighting

5.00(
5
)
Approved Pro
Customers say: Quick response
27 years of experience
Free onsite estimate

we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Kevin responded quickly to my call, came on time, was friendly, neat, explained the job, provided pricing upfront and completed project. I will definitely use KH Gillette Electrical again and would highly recommend."

Gail D on March 2025

we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Kevin responded quickly to my call, came on time, was friendly, neat, explained the job, provided pricing upfront and completed project. I will definitely use KH Gillette Electrical again and would highly recommend."

Gail D on March 2025


Avatar for Trinity Electric

Trinity Electric

5.00(
2
)
Approved Pro

Trinity Electric

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

TRINITY ELECTRIC is committed to excellence every aspect of our business. 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"Highly recommend, honest, great quality, very good at what he does, and great with people."

Steve X on April 2020

TRINITY ELECTRIC is committed to excellence every aspect of our business. 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"Highly recommend, honest, great quality, very good at what he does, and great with people."

Steve X on April 2020


Adaptive Power Company, Inc.

5.00(
1
)
Approved Pro

Adaptive Power Company, Inc.

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Adaptive Power Company Inc is committed to excellence in every aspect of our business. 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"They came in, did the job done quickly and what I asked for, supoer friendly, personable, and fantastic work to with."

Nick X on April 2022

Adaptive Power Company Inc is committed to excellence in every aspect of our business. 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"They came in, did the job done quickly and what I asked for, supoer friendly, personable, and fantastic work to with."

Nick X on April 2022


Avatar for Ground Up Electric, LLC

Ground Up Electric, LLC

5.00(
2
)
Approved Pro

Ground Up Electric, LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Luis, is truly a professional and will manner gentleman. Thank you Luis for making my project smooth and easy and great job sir...I recommend this company...."

William P on December 2023

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Luis, is truly a professional and will manner gentleman. Thank you Luis for making my project smooth and easy and great job sir...I recommend this company...."

William P on December 2023


Avatar for Flo-Electric

Flo-Electric

4.96(
106
)
Approved Pro

Flo-Electric

4.96(
106
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
35 local quotes requested

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! Book with us online or feel free to give us a call today!

"It was amazing that Chris installed the EV so quickly with competitive price. I strongly recommend to choose Flo-Electric company for EV installers. "

Mickey B 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! Book with us online or feel free to give us a call today!

"It was amazing that Chris installed the EV so quickly with competitive price. I strongly recommend to choose Flo-Electric company for EV installers. "

Mickey B on May 2025


Martin's Electrical & Lighting Company

4.86(
95
)
Approved Pro

Martin's Electrical & Lighting Company

4.86(
95
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
29 years of experience

"The Bitterness of Poor Quality lingers long after the Sweetness of the Lowest Bid" I'm Martin, with Martin's Electrical & Lighting Company, personally has over 20 Years in the Electrical Trade. We have the expertise to get any job completed correctly and safely. With electrical, safety is extremely important and we shall never install anything in an unsafe manner. Customer satisfaction is extremely important. I am a family man, honest and trustworthy, looking for clients and customers with the same high integrity, with over 20 Years Experience in all forms of Electrical. Reasonable rates along with professional and quality work. No short-cuts taken. Call us today @ 909-595-1439 and you will not be disappointed. Please check out our Website Martins-Electrical.com

"Martin was response to my messages and was attentive to my concerns. Began wort immediately the next day after assessing project needs. I’ll highly recommend Martin to family and friends."

Gustavo M on November 2022

"The Bitterness of Poor Quality lingers long after the Sweetness of the Lowest Bid" I'm Martin, with Martin's Electrical & Lighting Company, personally has over 20 Years in the Electrical Trade. We have the expertise to get any job completed correctly and safely. With electrical, safety is extremely important and we shall never install anything in an unsafe manner. Customer satisfaction is extremely important. I am a family man, honest and trustworthy, looking for clients and customers with the same high integrity, with over 20 Years Experience in all forms of Electrical. Reasonable rates along with professional and quality work. No short-cuts taken. Call us today @ 909-595-1439 and you will not be disappointed. Please check out our Website Martins-Electrical.com

"Martin was response to my messages and was attentive to my concerns. Began wort immediately the next day after assessing project needs. I’ll highly recommend Martin to family and friends."

Gustavo M on November 2022

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FAQs for electrical wiring or panel upgrade projects in Diamond Bar, CA

Electrical wiring can last between 50 and 70 years if properly installed and maintained. However, factors like moisture damage and overloading outlets can shorten this lifespan. To extend your wiring's life, unplug electronics when not in use, avoid overloading outlets, and schedule regular electrical inspections every five to ten years.

If your house was built in the 1960s and hasn't been rewired, it likely needs it. Older homes may have outdated wiring like knob-and-tube, which poses fire risks due to flammable insulation. Rewiring ensures safety and may also require updating your circuit panel, outlets, switches, and fixtures. Contact a local electrician to help with your rewiring needs.

Yes, rewiring your house is worth it, especially if your wiring is outdated. It improves safety by reducing fire risks and can increase your property's value. However, you may not need a full rewire. A home inspector can tell you if a partial rewire will bring your home up to code.

Yes, you can sometimes rewire a house without removing walls. Electricians might access wiring through attics, basements, or crawl spaces, or make small holes to run new wires. However, this isn't always possible, and in some cases, removing sections of walls is necessary to ensure the wiring is installed safely and meets code.

A house should typically be rewired every 25 years to maintain safety. Over time, wiring deteriorates, increasing fire risks. Regular electrical inspections every five to ten years help assess the need for rewiring. Staying proactive with maintenance ensures a safe, efficient electrical system and prevents potential hazards before they become serious issues.

The Diamond Bar, CA homeowners’ guide to electrical wiring or panel upgrades

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