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Find Generator repair pros in Diamond Bar

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

"52-YEAR BUSINESS!!! Jack Vardiman is the TOP electrician to effectively fix/set up your essential electrical systems. Checked Angie's List and selected JVEC Inc. in Brea. Jaclyn provided outstanding customer service and immediately set up an appointment. Jack's knowledge is encyclopedic; his skill is utmost; and his actions are meticulous. He instantly recognized an older GE circuit panel and efficiently replaced the damaged breaker with the appropriate part. Furthermore, the repair fee was very reasonable."
11 neighbors recently requested a quote
Recommended by96%of homeowners
Gandzjuk Electric Incorporated
4.8(
129
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"The company owner, Jacob came out to my property with one of his crew members to discuss the requested electrical work and provide an estimate taking all aspects of the job into consideration. Using digital tools, he provided a written estimate on the spot that I accepted. On the day scheduled for the job, Jacob and his team arrived on time. They walked through the property verifying the work that would be completed. The crew members were always focused on the job and were extremely conscientious. They took great care to protect the property with plastic sheets in all areas where they were working. An unforeseen problem was discovered during the job (some live wires that were disconnected and not capped off). The unsafe situation was resolved without any extra cost. The entire job was completed professionally and thoroughly and nothing was left undone. As I had questions during the job, they were addressed immediately. The crew members communicated with each other (even using their cell phones when one was in the attic or it was difficult to hear one another) throughout the job making sure they were working together to complete all requested tasks. Near the end of the day, Jacob returned to review all the work that had been done and to touch base with me with regard to my satisfaction with the work. When all work was completed, Jacob generated a digital invoice and sent it to me electronically. The service provided by Gandzjuk Electric was top notch. I will not hesitate to recommend this company to others."
Response time3 hrs
1 neighbors recently requested a quote
Recommended by96%of homeowners
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!"
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Casaroja Electric Inc
Casaroja Electric Inc
5.0(
19
)

Serving Diamond Bar, CA and surrounding areas

Approved

Emergency services offered

Warranties offered

Offers commercial services

"I got a few estimates to get more power out to my studio. Everyone quoted me about 4K to upgrade my panel and get dedicated line out to my studion. These guys were to only ones that looked for a better/more economical solution. I sent a pic of my panel and he remembered that I upgraded my kitchen a while back but noticed that my electric stove had it's own dedicated line. He asked me, did you convert to gas when you remodeled? I said yes and he said, great, we take the line that was dedicated to the stove and we use that. It saved me $1500 and it worked perfectly. I would absolutely hire again!"
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade
Panel upgrade

+1

5 neighbors recently requested a quote
Avatar for Coast Electric Company
Coast Electric Company
5.0(
19
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"Ignacio and his son Jonathan were very helpful and patient with me explaining in detail the electrical work that needed to be done in replacing the Electrical Panel & wiring. The job was done very professional and as scheduled. Their price was reasonable compare to others. I would highly recommend them."
Hoover apartments complex
Hoover Ave job
Hoover st apartments
Mariposa apartment building
Mariposa apartment building

+1

Response time1 day
2 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Albrik Electric Co.
Albrik Electric Co.
5.0(
19
)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2021

Free estimates

Offers commercial services

"Albrik Electric Co was contracted out as a 3rd party to complete an installation for a business client. The former electrical contractor was let go and Albrik Electric Co stepped in to resume the work. Between the ease of communication, the quality of work, flexibility of work time, and fair pricing, I highly recommend using Albrik Electric Co. We will consider using this company again for future projects."
Response time3 hrs
Response rate100%
4 neighbors recently requested a quote
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Showing 1-10 of 719
FAQs for generator repair projects in Diamond Bar, CA

Always start by confirming the pro’s license number, insurance coverage, and experience level. Visit the electrician’s website, scan recent customer reviews, and verify credentials with your local labor department. Request proof of liability insurance and at least two references that you can contact. These quick checks take only a few minutes but go a long way toward ensuring safe, code-compliant work and protecting your home in the event of an issue.

Grouping several electrical jobs into one appointment means you pay a single service-call fee and one set of travel expenses. Instead of asking a pro to return three separate times for outlets, switches, and fixtures, have everything tackled in one visit. The electrician stays productive, and you avoid extra trip charges, often shaving a sizable chunk off the final bill without compromising quality.

DIY electrical work can be dangerous and, in many areas, illegal without a license. One miswired connection risks shocks, fires, or expensive damage. Licensed electricians carry the right tools, follow local code, and know how to shut down power safely before they start. Hiring a pro may cost more upfront, but it protects your home, family, and insurance coverage in the long run.

The Diamond Bar, CA homeowners’ guide to generator repair services

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