*The Angi rating for Generator Install 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 Generator Install needs.
*The HomeAdvisor rating for Generator Install 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 Generator Install needs.
Last update on September 29, 2025
Serving Diamond Bar, CA and surrounding areas
Approved
Emergency services offered
Warranties offered
Offers commercial services
"Sergio and his assistant installed an EV charger at my place, and they did an amazing job. I’m so glad I hired them. Their price was reasonable compared to other contractors. I highly recommend them and would definitely use their company again for any future jobs."
+1
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."
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Showed up on time and were done expeditiously. I had a question afterward and they replied quickly."
+9
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."
+1
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!"
+23
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"The electrician was over an hour late for his appointment. Aside from that, the owner and his employee were very helpful at instaling the extra outlet and pointing out flaws in the electrical system in the house. Highly recommended."
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2023
Emergency services offered
Small jobs welcome
"Very satisfied with upgrading a 100amp residential electrical panel to 200amp. Benjamin and his crew came out to review a 40+ year old panel and his bid laid out everything he thought needed to be done. His bid was similar/competitive with the other two I received, but as with anything like this, some extra costs did materialize after discussions with Edison and City of Long Beach; he explained all of these and got my sign off on everything he did/added, and at the end he kept the extra costs as low as possible. Benjamin’s communication was great and he tried to explain everything to me - the novice. During the “rough inspection” the inspector said “this is probably the cleanest and most organized residential panel project I’ve ever seen”. They also did a nice job of covering the old service mast and panel/meter box and cleaning up after the project. Orozco's will be coming back for some other work inside my house and I will probably eventually bring them back for some upgrades"
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"Ricardo is the best electrician I?ve ever hired. Was very professional and friendly to talk to. Honest pricing for a meter panel upgrade. Did what he said he was going to. Also checked out some lighting fixtures I wanted to get installed in my home as I?ve had several quotes and they were just outrageously priced but he gave me the best price out of 6 electricians! Will definitely hire Rick for all my future electrical needs!!"
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"I hired home pro remodeling to put pavers on my back yard and to install flloring thorough out the whole house I'm super setasfied with the work and the service . The company also provided me great financial options which I used thank you kobi Leo and Lucas for your great service . Highly recommend them for everyone"
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2012
Emergency services offered
Warranties offered
"Tech was on time friendly and professional. Thorough and diagnosed the issue Waiting to hear about parts and installation. So far 5 stars."
+20
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