*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 walked me through the process to get my panel done. I recommend him 100%. On time, neat, good communication. Call him for your electrical needs!"
+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
"My experience with Zero Electric was great! James was extremely knowledgeable about home generators and walked us through several pricing options that fit our budget. Their work was clean and efficient and I will definitely be hiring him in the future for our electrical issues."
+1
Serving Diamond Bar, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"The electricians installed two outlets and one LED light fixture in a very professional manner. They provided good advice and suggested that I consider rejunvenating my electrical panel as my home is now 26 years old without pressuring me to have it done immediately. I will definitely consider Trout Electric when I decide to have it done."
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
"Turf came out very nice. Jovanni was a great salesman. Noe and his crew were very efficient and professional"
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
Serving Diamond Bar, CA and surrounding areas
Approved
Free estimates
Offers commercial services
"The Tech was very professional and on time. He diagnosis the problem within a minimum of time. I was over all happy and satisfied with the job he did."
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