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Find Electrical for home addition or remodel installers 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

"As usual with Garafano Electric, everything went fine -- way more than fine, actually. We have used them for years on various upgrades to our 1920's mediterranean home. William, the owner, is great about explaining our options and always finds the best and most efficient way to work within the confines of an older two-story duplex on a sloped lot that has serious access issues. Pricing is fair, they have never failed to show up on the appointed day, and on time, and complete the job as agreed. They have never disappointed for over 20 years, and I recommend them without hesitation!"
Response time3 days
3 neighbors recently requested a quote
Recommended by98%of homeowners
JK Flores Enterprise LLC.
5.0(
43
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Perfect and smooth journey, Jorge came pre instillation to check the electrical panel and where the the charger was going to be installed and after the review he text me the cost of parts and installation, after I received the charger he came on time and the job was completed. I was updated by text messages throughout the process. In the future if I need any electrical work I definitely use JK Flores Enterprise."
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%
8 neighbors recently requested a quote
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

"The whole process, from estimate to follow-up service, was superb. There was an issue with the installed timer. A simple request and the replacement was scheduled for replacement within a week at no charge. A request for an upgrade was also done quickly for a small charge. I highly recommend Martin!"
New Samsung Flat Panel!!
 Recess Lights
 Smart Phone this Code for Specials!!!
 Kitchen Lighting
Flat Panel TV

+15

Recommended by98%of homeowners
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

"Contacted JVEC for an evaluation of work issues related to a kitchen remodeling contractor. The evaluation and review were timely, thorough, and provided me the tools to discuss the shortcomings and necessary corrections with the kitchen contractor. As a result of the help provided by JVEC, the corrections were made at little additional cost. I would highly recommend JVEC and they will be my first call for any future electrical work."
Response time2 days
15 neighbors recently requested a quote
Recommended by96%of homeowners
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

"I would highly recommend Naymar Electric to anyone looking for an excellent electrician. Their prices were very fair and competitive, their estimated timeframes given were more than reasonable and turned out to be accurate. I appreciated that David was readily available to answer my basic questions, as well as use his experience and creativity to wire the house in a way that would provide for future inhabitants and household configurations. He was very knowledgeable and informative, as well as creative and aesthetic, and he and his crew were hard workers that paid attention to detail and left the house easy to patch when they were through. I am so glad I went with Naymar Electric, they are now my go-to!!"
Response time3 hrs
Response rate93%
4 neighbors recently requested a quote
Avatar for Alset Electric
Alset Electric
4.8(
68
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Eddie did a great job from start to finish installing my new upgraded electrical panel and the price was right. I was very pleased with the service. I highly recommend for all your electrical needs."
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
8 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Accurate Electric, Plumbing, Heating and Air
Accurate Electric, Plumbing, Heating and Air
4.5(
14
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I worked with the owner and the field supervisor - both extremely nice & very professional. I hope I have additional work needed in the future just so that I can work with them again!"
Jeff Seale - Owner
Albert Aragon - Dispatch
Cheri Fortner - Operations Manager
Dan Hartman - Journeyman Plumber
Eric Bribiesca - Comfort Advisor

+23

15 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for ZERO ELECTRIC
ZERO ELECTRIC
4.9(
10
)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Highly Recommended! We have hired Zero Electric to do several jobs at our apartment complex including installing a generator, EV chargers, new panel, and even installing recessed lighting in the units. They handled all aspects of the projects and had top notch communication throughout. The team has always been quick and professional. We will continue using Zero Electric for our electrical needs."
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Additional Photos

+1

1 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for West Coast Current
West Coast Current
5.0(
12
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2023

Free estimates

Small jobs welcome

"Called Shawn at West coast current for a panel upgrade, Tommy came out and took care of the job. Process was flawless and professional. Price was fair, but most importantly, the guys were courteous and did exactly what we needed. Definitely would recommend WCC to any family or friends in need of electrical work"
Response time8 hrs
Response rate91%
4 neighbors recently requested a quote
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FAQs for electrical for home addition or remodel installation projects in Diamond Bar, CA

Because installing coax outlets involves working around existing electrical wiring and confirming proper grounding, many homeowners prefer to hire a licensed electrician. A professional completes the work safely, secures the line behind the wall, and ensures the installation meets local code, which reduces the risk of damage or future repairs.

You still need a coaxial outlet for most cable-based internet services. The modem draws its signal from a cable line that terminates at a dedicated wall jack. Once the modem is online, your Wi-Fi router can broadcast the signal throughout the home, so the outlet’s location doesn’t affect wireless performance. If an existing jack is damaged or in an inconvenient spot, an electrician can move it or install a new one to maintain a strong, reliable connection.

Coaxial cable loses signal strength the farther it runs. A 50-foot length introduces noticeable loss, and a 100-foot stretch can drop the signal by roughly 30%. A weaker signal can result in a fuzzy picture or slower internet speeds. To maintain high performance, limit cable length whenever possible, select the correct cable grade, and route it efficiently. If your layout demands an exceptionally long run, an electrician can install an inline amplifier to boost the signal and maintain picture or data quality.

The Diamond Bar, CA homeowners’ guide to electrical for home addition or remodel installations

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