Mary G.
9/22/2025
One can't ask for a more excellent service than John Jiang at First Tech Networks provides to his clients. He is very knowledgeable, very prompt, very honest, and very hardworking. He installed 3...
First Tech Networks
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4200 California St Ste 204
San Francisco, CA 94118
First Tech Networks is a leading security and communications company in the San Francisco Bay Area, specializing in professional installation of security cameras, data cabling, access control systems, and home theaters.
With a strong reputation for excellence and 5-star reviews on Yelp, they offer a comprehensive range of solutions to ensure the safety and convenience of homes and businesses throughout the region.
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Reviews
5.0123 reviewsAlexander L.
5/16/2025
John and his team Installed a Doorbird video intercom system at our commercial property in San Francisco. Service was straight forward, efficient, and thoughtful. He gave us a few options in...
Tasha B.
5/15/2025
We had the best experience with this company and highly recommend it! John and his team did an amazing professional and timely job. Great service and great people. So thankful that we found this...
Richard T.
5/6/2025
John have always been a great help. Over 5 years after installing our home security cameras we switched to a new modem and it caused some issues. John did not hesitate to answer my questions and...
benwa h.
9/26/2024
If I could give John more than 5 stars.....I was having issues with my cameras because I installed a new wifi router. John got me up and running in less than 30 minutes. John installed my camera...
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