Andrea B.
6/18/2025
Easy. Flexible (my original appointment time had to change) and they were accommodating. Basic service request to reprogram 2 keys for our Camry. Teishone was on time, communicated well via text,...
Diamond Locksmith
Closed
(774)
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3 37th Ave Ste 10
San Mateo, CA 94403
Diamond Locksmith is a comprehensive locksmith service provider located in San Mateo, CA, catering to residential, commercial, and automotive needs. Their offerings include key replacement, lock repairs, installations, rekeying, and broken key extraction, all delivered with a commitment to customer satisfaction.
Operating in the Peninsula Bay Area, including cities like Burlingame, Belmont, and San Francisco, Diamond Locksmith prides itself on offering flat rates and professional services. They extend a 15% discount to seniors, veterans, students, and public servants, emphasizing their dedication to the community.
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Reviews
5.0774 reviews
Yue X.
9/14/2025
Urgently needed to have my lock changed for my mailbox. They responded and came to change the lock same day. Provided new lock, keys, and everything at very fair price. Very professional,...
L Y.
8/1/2025
Daniel was communicative about his arrival time and promptly updated 7 locks. He was knowledgeable and courteous. The price Ray quoted me was one of the better deals in the area for the number of...
Abhay N.
8/3/2025
On time, knowledgeable and courteous staff. They were able to handle different types of locks and offered competitive pricing.
Shouhei I.
8/22/2025
I requested a new car key since I lost one of them. This was a car key for a 2023 model Lexus. Teishon was very friendly and got the job done promptly and very courteous. The price was...
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