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Electrical wiring or panel upgrade pros in Diamond Bar

Avatar for INFINITI ELECTRIC INC
INFINITI ELECTRIC INC
7355 MAGNOLIA AVE
5.00(
5
)
Approved Pro
INFINITI ELECTRIC INC
7355 MAGNOLIA AVE
5.00(
5
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

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.

"James was very helpful, patient, very knowledgeable in his field. I would highly recommend Infiniti Electric"

Johnny C on June 2025

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.

"James was very helpful, patient, very knowledgeable in his field. I would highly recommend Infiniti Electric"

Johnny C on June 2025


DP Electric, Inc.
7811 6th Street
4.89(
14
)
Approved Pro
DP Electric, Inc.
7811 6th Street
4.89(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 years of experience

We have over 20 years of experience in the business. Here at DP Electric, Inc., 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!

"Frank and his team were on time and professional. It is obvious they know what they are doing. I highly recommend using DP Electric, Inc."

Anne W on June 2020

We have over 20 years of experience in the business. Here at DP Electric, Inc., 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!

"Frank and his team were on time and professional. It is obvious they know what they are doing. I highly recommend using DP Electric, Inc."

Anne W on June 2020


Avatar for M J Prime Electric Incorporated
M J Prime Electric Incorporated
1145 Fieldgate Avenue
5.00(
4
)
Approved Pro
M J Prime Electric Incorporated
1145 Fieldgate Avenue
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
10254 Beverly Blvd
4.55(
10
)
Approved Pro
Granny Electric
10254 Beverly Blvd
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
455 West La Cadena Drive Unit 20
New on HomeAdvisorNew on Angi
Approved Pro
S&W Electric Company
455 West La Cadena Drive Unit 20
New on AngiNew 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


Carlos Villegas
14106 Los Robles Ct
4.83(
52
)
Approved Pro
Carlos Villegas
14106 Los Robles Ct
4.83(
52
)
Approved Pro
Super Service Award
Customers say: True professional
23 local quotes requested
49 years of experience

We offer over 28 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 generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. We’re committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Carlos and his crew are awesome. This is the 2nd project. The first one was a 200 amp panel upgrade for my house. This one was a 100 amp panel clear on the other side of the house and a RV box. They even accommodated a last minute request. Got it all done in one day. "

deon r on April 2025

We offer over 28 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 generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. We’re committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Carlos and his crew are awesome. This is the 2nd project. The first one was a 200 amp panel upgrade for my house. This one was a 100 amp panel clear on the other side of the house and a RV box. They even accommodated a last minute request. Got it all done in one day. "

deon r on April 2025


Vladimir Galstyan
PO BOX 3445
5.00(
1
)
Approved Pro
Vladimir Galstyan
PO BOX 3445
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

VLADIMIR GALSTYAN 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.

"Was out very fast and took care of it without any issues and cleaned up after himself."

Chris C on June 2022

VLADIMIR GALSTYAN 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.

"Was out very fast and took care of it without any issues and cleaned up after himself."

Chris C on June 2022


Avatar for Trinity Electric
Trinity Electric
3201 Cabernet Drive
5.00(
2
)
Approved Pro
Trinity Electric
3201 Cabernet Drive
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


Avatar for JRG ELECTRIC INC
JRG ELECTRIC INC
13610 Imperial Highway
4.90(
43
)
Approved Pro
JRG ELECTRIC INC
13610 Imperial Highway
4.90(
43
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
41 local quotes requested

When customer service and quality matter to you, JRG Electric Company is your first choice. Our knowledge and experience speak for themselves, with 25 years of experience in electrical services. When it comes to the mechanics of your home, especially the electrical aspects, you need a contractor with experience. Mistakes can be devastating! You can trust that we will put the safety of your family and your home first. Our goal is to make you into one of our many lifetime customers through our dedication to give you the best value and the best service, while still getting the job done right, every time.

"He was very professional and nice in explaining his work. He appeared very knowledgeable and has a very good character. "

Whie O on June 2025

When customer service and quality matter to you, JRG Electric Company is your first choice. Our knowledge and experience speak for themselves, with 25 years of experience in electrical services. When it comes to the mechanics of your home, especially the electrical aspects, you need a contractor with experience. Mistakes can be devastating! You can trust that we will put the safety of your family and your home first. Our goal is to make you into one of our many lifetime customers through our dedication to give you the best value and the best service, while still getting the job done right, every time.

"He was very professional and nice in explaining his work. He appeared very knowledgeable and has a very good character. "

Whie O on June 2025

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

HVAC systems consume the largest portion of household electricity, as they operate frequently throughout the year. Water heaters represent another significant energy user in most homes, along with refrigerators that run continuously. Clothes dryers, dishwashers, and cooking appliances also contribute substantially to electricity usage. Entertainment systems, particularly those left in standby mode, can collectively add meaningful amounts to monthly bills.

Time-of-use electricity plans charge different rates depending on when you use power. Peak hours—typically weekday afternoons and evenings—come with premium rates, while overnight and weekend hours often feature discounted pricing. Households that can shift major electricity usage to off-peak hours may benefit from these plans. The effectiveness depends on your schedule flexibility and ability to run major appliances during lower-rate periods.

Solar power systems represent a significant investment, currently averaging between $18,115 and $35,165 for residential installations. The financial benefit varies based on your location's sun exposure, local electricity rates, and available incentives. Homes with consistently high electricity bills see better returns on solar investments. Many homeowners consider both immediate savings and property value enhancement when evaluating solar options. Contact solar panel installers near you to discuss the potential costs and benefits for your home. 

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.
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