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Foster Brothers Security Systems

Sunnyvale Locksmiths
Ranked #2 in Sunnyvale | Grade B+
4.80 (170 reviews)

Foster Brothers Security Systems

Local locksmith shop in Sunnyvale offering key cutting, rekeying, and lock services for residential and commercial needs. Known for timely scheduling and professional technicians.

Why Homeowners Choose This Business

Local shop presence, consistent weekday availability, and technicians noted for professionalism. Reviews highlight timely response and effective solutions for rekeying and key cutting.

Service Area

Sunnyvale and neighboring Silicon Valley areas. Visit the shop at 555 S Murphy Ave or call (408) 736-4500.

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Listing details

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  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Maintains a competitive standing in this market.
  • Has a higher average Google rating than many businesses in this area.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Locksmith Services
  Supplier
  Key Cutting
  Lock Rekeying
  Lock Installation
  Commercial Locksmith
  Residential Locksmith
  Door Hardware
  Master Key Systems
  High-Security Locks
  Key Duplication
  Lock Repair
  Access Control Support
  Deadbolt Installation

Services include key cutting, lock rekeying, lock installation and repair, and commercial door hardware support. The shop assists with standard house keys and many vehicle and specialty keys. On-site service is available for businesses and residences by appointment.


Reviews

Recent Reviews

4.80

(Based on 170 reviews)

Reviewers frequently mention quick response, professional technicians, and reliable outcomes for rekeying and key cutting. Business clients note timely work on short notice. A small number of critical reviews reference issues with specific items, but most feedback trends positive with clear communication and courteous service.

Great service from Foster Brothers. Quick Response, professional and every Tech they send over do a great job. Thank you so much

Went to home depot, cause I thought they could cut the blank car keys, I bought online. They said, I have to buy the key from them and that's the only way it would work. So I looked around for a key cutting place. Foster Brothers, came up on maps. Went over and they cut the key with no issue. He said, it possibly won't work, cause of the "shoulder" on the keys. I want to let him know it worked. I appreciate your good service. I buy my company vans, from the auction and they always come with one key. So I buy the OEM blanks online. You guys helped me out. Thanks!

Three generations of my family have sought out Foster Brothers Security Systems, Inc. when they needed a locksmith. It is a first-class operation. As a local Realtor®, I recommend Foster Brothers whenever possible.
Twice this year, both personally and professionally, Foster Brothers exceeded all expectations.
Mike A. and Mike S. were helpful and knowledgeable.
I highly recommend Foster Brothers!

Foster Brothers is the best I've ever worked with. They re-keyed many locks at our business on short notice. Technicians were professional and worked in a timely manner.
I highly recommend them.

Speechless. My stomach's turning as I think about this...

My grandfather passed last year, and I recall him opening this lock box as a child, filled with family memories. I haven't been able to get in, as I have boxes upon boxes of keys.

Well I mentioned to my mom Foster Brothers' and how I was going to reach out to them - as grandfather went here for as long as I can remember, and trusted... She apparently took this lock box there, as I went to pick up lunch ( i.e. I wasn't aware of this happening. )

So she goes in with the box and asked if they could get in. It was never communicated to her that their idea of 'getting in' was destructive! Once they started drilling/prying, she stopped them and called me. I nearly threw up upon learning about was happening.

What in the world was going through this person's head - you have a lock box that's the better part of a century old, mint condition ( family heirloom might as well of been etched across it...) .... pry/drill the thing open, why not...

I'm shocked that this was even considered. And using a DRILL and PRYING the box open should have been clearly communicated prior. BEFORE YOU DESTROY SOMETHING - YOU COMMUNICATE AS CLEARLY AS YOU CAN - CONSENT - CONSENT - CONSENT! It is 2024!

The lack of critical thinking is beyond the pale here - and this is NOT the company my grandfather Trusted anymore I suppose. I'm horrified. Again, I can't eat my lunch thinking about this!

This person didn't think that this wasn't something I could have done ( as I write this, I'm literally seeing double...so apologies upfront. ) Again, a person goes to a place like this, in order to get services that are beyond that of a drill ( of which I own a couple ) and/or pliers ( again, I have a bunch of these too. ) The things made out of paper thin sheet metal. So disappointed.

This is not the company you remember - you have been warned.

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Emergency Service

Emergency service may be available for urgent issues.


Frequently Asked Questions

They provide key cutting, rekeying, lock installation and repair, and support for commercial door hardware. Walk-in key duplication and scheduled on-site services are available during weekday hours.

Several public reviews indicate they are able to cut customer-supplied keys in many cases. Results can depend on the key blank type and condition, so they may advise if a key has a risk of not working properly.

Yes, reviews describe rekeying multiple locks for businesses on short notice. Contact the shop to discuss scope, scheduling, and hardware requirements.

Weekday hours are listed as 8:00 AM to 5:00 PM, Monday through Friday, and closed on weekends. It is best to call ahead to confirm hours before visiting.

Public listings show standard weekday hours, and there is no clear indication of emergency or 24/7 service. Call to check current availability for urgent requests.
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Opening Hours


  • Monday 8:00 AM – 5:00 PM
  • Tuesday 8:00 AM – 5:00 PM
  • Wednesday 8:00 AM – 5:00 PM
  • Thursday 8:00 AM – 5:00 PM
  • Friday 8:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed

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Business Details


Business Rating
4.80 (170 reviews) Featured BusinessPro Listing
Address
555 S Murphy Ave, Sunnyvale, CA 94086
Phone
Business Type
locksmith

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