Westsun Electric & Solar
Company Overview
For 25 years, Westsun Electric and Solar has been the trusted name for electrical needs throughout the Bay Area. Our team is ready to handle service calls, troubleshoot issues, and offer expert consultations. We cater to both commercial and residential projects. No task is too small or too large for us. We specialize in modernizing older homes, kitchen renovations, EV charging station setups, PV panel design and installation, all types of lighting work, service upgrades, and ensuring code compliance. When others make mistakes, we are here to correct them! We are known for our experience and expertise, as well as our courteous and prompt service.
Our service areas encompass Santa Clara, San Jose, Fremont, Cupertino, Los Altos, Palo Alto, San Mateo, Los Gatos, and the surrounding communities. Established in 1989 as Advanced Commercial Electric, we transitioned to Westsun Electric & Solar over time. Chris Choy, our owner, has an electrical engineering background and worked for Lockheed Martin for 11 years. We launched ACE in San Francisco and made our way down to Silicon Valley. Now located in Santa Clara since 2009, we offer our distinctive experience to the greater valley area, tackling projects that others find challenging. Expect top-notch workmanship from a respectful, humble, and well-mannered expert at a competitive price.
My background is in electrical engineering, and I have extensive experience in design work. Many say I have a knack for problem-solving, much like MacGyver. I am thrilled that my extensive skill set serves my clients well. Westsun Electric values customer service, and our aim is to deliver quality work efficiently.
Business Services
- Electric inspection
- Electric installation or replacement
- Electric panel installation
- Electric panel repair
- Electric repair
- Wire installation
- Electric vehicle charging station installation
- Light fixture installation
- Light fixture repair
- Add to existing system
- Add solar panels
- Solar system installation
Business Location & Hours
Mon: | 8:00 AM - 5:00 PM |
Tue: | 8:00 AM - 5:00 PM |
Wed: | 8:00 AM - 5:00 PM |
Thu: | 8:00 AM - 5:00 PM |
Fri: | 8:00 AM - 5:00 PM |
Sat: | 8:00 AM - 5:00 PM |
Sun: | Closed |
Recommended Customer Reviews

I'll try and curb my usually very sarcastic and sardonic self in this review because the gentleman that showed up at the door today is a truly upstanding person and deserves a positive review.
I will admit that I have very little experience with electricians, but I can spot a genuine person and an honest person when I meet one. He was truthful about what should and shouldn't be done and even about what I could do myself. What kind of electrician or mechanic or plumber wouldn't jump at the chance to create more paid work for himself that really doesn't require a professional??? An HONEST one.
Because of the nature of my electrical problem, there was little he could do this time other than advise replacing the lighting itself since the transformer was dead. He also gave me tips on which ones I should buy and seemed knowledgeable about the why as well as the what, which is just as important.
TL;DR I would call him again in a heartbeat if I ever need an electrician again. What are you still doing reading this? Call him already!

I recently started updating the lighting in my condo and needed a certified electrician to install recessed lighting throughout my unit. I yelped and called several electricians and all of them gave me 5+ day turnaround to just come out and write an estimate. Upon my first call to Chris, he was available the same evening to come and look at my place. We scheduled an appointment and Chris came out and listened intently to my wishlist and provided thoughtful recommendations based on his experience. Within another day, Chris had diagrammed out the job, provided a reasonable price estimate, and was ready to start the job! He was extremely responsive to email and phone calls and has superior customer service skills. If you are looking for a person that cares about the job and is invested in more ways than one, Chris is the man for the job!

I had a new commercial space which needed more power installed including some 240 V / high current circuits. I feared it would be very expensive. I had Chris come out based on the positive reviews and his fast availability, and told him I was looking to get the job done inexpensively. Chris was able to devise a plan to reuse/convert unused portions of the existing electrical electrical system and gave a very reasonable quote to get the job done which was great for our start-up company. He was extremely knowledgeable and did everything according to code.
I think the job took a little longer than he anticipated due to reasons that were not his fault (a fluorescent ballast he bought to fix a light turned out to be bad and he had to go back to get another one and come back another day), but he still charged the same quoted cost. Overall a great experience and will use him for future electrical work.

Chris Choy did a great job for us. He was reliable and hard working. We would recommend him to friends. He does quality work.

This is the second visit Chris Choy has made to our home for electrical work. He came out the same day I called and fixed the problem which was flickering lights. Other contractors gave me response times of 5+ days. Three weeks ago I called Chris to relocate some recessed lighting in our living room as we had moved the furniture around the lighting was not lighting where it should. We also wanted to Chris to replace the under cabinet lighting in our kitchen as the exitsing lights were not providing adaquate light. Chris showed up on time, installed the recessing lighting and updated the lighting under the kitchen cabinets . His choice of fixtures was perfect and it sure brightened up the kitchen. Also, he cleaned up the mess. I would definitely recommend him.

His work is good, but after finishing the job it is increasingly harder to get hold of him. I have left several messages and sent email to no avail.
Help me, Chris, two of the fixtures you installed need replacement and I have another job for you!

Our almost new electric oven recently quit working, and the appliance warranty technician diagnosed it to be due to an electrical problem.
I called a local electrician whom I found on a yellow page.
He said that we would need to replace outside panel and run a new wire to the kitchen for the grand total of $4,000!
Seeking a second opinion, I was referred to Chris by a client of mine.
After inspecting the situation and our premise thoroughly, he gave us an estimate of $1,200 for an alternate repair plan - reconnecting to the wire that used to be connected to our old oven, but was now behind a new pantry. It required cutting the sheet rock, moving the refrigerator - in other words, lots of labor on his part, but $2,800 less than the other guy.
He worked over 7 hours that day very hard, and when the job was completed beautifully, he charged us $300 less because he said that job was easier than expected. Talk about honesty and professionalism!
Many days later, I discovered that he also installed a new outdoor outlet on the wall facing the kitchen at no additional charge. It was a pleasant surprise gift.
My wife was home that day, and I was at work whole day, so I never met Chris in person. My wife was thoroughly impressed with his courteous, pleasant personality.
I highly recommend Chris, and would unreservedly use his service again
in the future.

I just want to say that I have never been more pleased with this kind of service. I made the arrangements to have Chris come to our house to do some electrical work that he originally said may be quite expensive depending on how we had the electrical set up already. To be honest, I don't know enough about electrical stuff to have known the difference. I was not able to be there when he came to do the work, just my wife. He was even more polite and wonderful to her than I expected. He even spent time playing with our dogs in the backyard when he was done - so funny. He could have charged us the worst case scenario cost and I wouldn't have known any different. But he didn't and it ended up being LESS than his original low end quote. He was fast, very polite and professional and explained EVERYTHING to my wife about what he did and why. I almost wish I had more work for him to do just to have the pleasure of having him DO the work. HIGHLY recommended.
UPDATE: It turns out that we had Chris install the wrong 220 outlet (our mistake, not his). He came the very next morning and replaced it without any complaint and with the same great personality as the first time. Wonderful service and wonderful guy. Don't hesitate.

it is nice to get people that are professional. i read some positive reviews before signing up with chris, and i am here to add mine. great job replacing my flood lights,outlets, in the backyard as well as adding a new one. all done with new wiring throughout. very satisfied and would very much recommend his work. the work was done in a efficient manner as well. thank you.

We've used Chris twice. First time we had Chris replace an old fuse box with a circuit breaker box, reroute/rewire some old wiring going to a separate cottage, and add some exterior lights on motion sensors. The second time we had him change out/move some outlets and add GFI's to the bathroom and kitchen.
Have been very satisfied with is work and rates, definitely recommend.