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4.6

(704 reviews)

Top-rated electricians.

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Verified Reviews for Electrical Service pros in Diamond Bar, CA

*The Angi rating for Electrical Service companies in Diamond Bar, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

*The HomeAdvisor rating for Electrical Service companies in Diamond Bar, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

Last update on July 11, 2025

Find Electricians in Diamond Bar

Avatar for Garafano Electric, Inc.
Garafano Electric, Inc.
4.8(
188
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1968

Free estimates

Warranties offered

"Garafano Electric has being taking care of all the electrical needs and upgrades in our 90 plus year old house for a few years now. They always do A+ work. We're currently in the middle of some home renovations and they've been willing and able to work with our erratic schedule. Honest, dependable, and great at what they do. Can't recommend them high enough!"
Response time3 days
3 neighbors recently requested a quote
Recommended by98%of homeowners
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JK Flores Enterprise LLC.
5.0(
41
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"The Technician (George) that came over was in time. He was very helpful in identifying the concerns we had with the appliances electrical outlets and circuit breakers. If we need any more electrical work done on our house we will be searching out to JK Flores for there service."
Existing ceiling fan
UPS system ready for a power outage
e.v. charger
New ceiling fan in living room
New UPS system

+28

Response time4 hrs
Response rate95%
3 neighbors recently requested a quote
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Avatar for JVEC, INC.
JVEC, INC.
4.9(
256
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"The crew came on time and did an excellent job installing electrical wiring and installing the ceiling fan. Highly recommended!"
Response time2 days
14 neighbors recently requested a quote
Recommended by96%of homeowners
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Martin's Electrical & Lighting Company
4.8(
100
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Installing the Quite Cool whole house fan was a great investment. Tested it over the weekend and it performed just as advertised. Should save plenty on AC operating costs. Martin was professional and answered all questions. Dependable and will use him for any electrical issues that may come up later."
New Samsung Flat Panel!!
Recess Lights
Smart Phone this Code for Specials!!!
Kitchen Lighting
Flat Panel TV

+15

Recommended by98%of homeowners
Request Quote
Avatar for Naymar Electric
Naymar Electric
5.0(
32
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Excellent work completed in a timely manner at a fair price. Replaced old Zinsco electrical panel with Square D panel. Highly recommend."
Response time3 hrs
Response rate93%
6 neighbors recently requested a quote
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Avatar for Alset Electric
Alset Electric
4.8(
67
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Excellent. A very efficient and well done job. Eduardo was always on time. The job was finished when he said it would be. I recommend him and I will hire Alset Electric company for my next electrical project ."
Transformer
Beautiful chandelier set up power with switch and put chandelier together piece by piece
Lighting for kitchen counters with a switch.. you can turn on and off.. really cool looking.. something different..
Trenching
Trenching

+62

Response time1 day
12 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Casaroja Electric Inc
Casaroja Electric Inc
5.0(
18
)

Serving Diamond Bar, CA and surrounding areas

Approved

Emergency services offered

Warranties offered

Offers commercial services

"Sergio and his team are truly amazing. We had our electrical panel replaced along with some other electrical work done. He is reliable and does excellent work."
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade

+1

5 neighbors recently requested a quote
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Avatar for Quality Electric Corp
Quality Electric Corp
5.0(
17
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"Quinn was professional and courteous. In addition to the EV charger installation, he also installed 2 new circuits with breakers and new conduit. All the work looked amazing and he and his associate cleaned up everything when they were done. Couldn’t have been happier with the work done. Would highly recommend Quality Electric."
Response time3 hrs
Response rate97%
4 neighbors recently requested a quote
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Showing 1-10 of 806
Electrical questions, answered by experts

Yes, hot tubs can use a significant amount of electricity, primarily to keep the water heated. A typical hot tub uses between 1,500 and 6,000 watts, and the pump can add another 1,500 watts. This usage can result in a monthly cost of around $20 to $30. The exact amount of electricity consumed depends on several factors, including the hot tub's age, size, heater voltage (120V vs. 240V), usage habits, and thermostat setting. Newer, energy-efficient models generally use less power than older ones. To reduce electricity costs, consider investing in an energy-efficient model, using a quality insulated cover with a thermal blanket, and keeping the filters clean.

Your outlet should be a ground-fault circuit interrupter (GFCI). These outlets will cut power off in the case of an electrical fire, keeping your home and family safe. Extension cords can also be GFCIs. A local electrician can replace older outlets with GFCIs, if necessary.

While not always necessary, wiring your circuit breaker in a certain way can ease both the installation process and use afterward. For starters, you’ll need to install the electrical panel so that the main service knockout aligns with the cable conduit. If they aren’t aligned, you may not have sufficient working space to finish running the wires. Using cable trays, on the other hand, gives you a bit more freedom to and flexibility in where and which direction you install the wires. At the end of the day, the power flow will be the same whether the cords run up or down.

In most cases, line wires are located at the bottom of a panel or device, while load wires are located at the top. Line wires are generally black, while load wires are typically red or black. To tell for sure, you can use a multimeter or volt pen to test the wire. A live or line wire will always carry a charge, while a load wire will only carry a charge when it’s in use.

If your microwave is on the fritz and you suspect the fuse has blown, you can check it to confirm it’s the source of the problem. Start by disassembling the panel and carefully checking the fuse filament or ceramic components. If your microwave uses a glass fuse, you’ll likely see discoloration and a melted filament. If your microwave contains a ceramic fuse, you’ll need to use a multimeter continuity tester to check if there’s continuity.

The Diamond Bar, CA homeowners’ guide to electrical services

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