Alpha Locks replaced all the locks in our office building. They were punctual, professional, and their prices were very reasonable. Will definitely use them again for our other locations!
Service
Commercial Master Key System Service
Need service or expansion for an existing commercial master key system? We audit, re-pin, and upgrade systems for offices and buildings.
- 24/7 emergency locksmith support
- Licensed and insured technicians
- Upfront pricing before any work begins

About this service
A commercial master key system lets property managers, building owners, and business operators control access across multiple doors with a structured key hierarchy — where individual keys open only designated doors, while master and grand-master keys open broader sets. Alpha Locks and Safe designs and installs commercial master key systems throughout Westchester County for offices, retail plazas, apartment buildings, and institutional properties.
We begin with a detailed access audit: which doors need to be keyed alike, which should be independent, and who requires access to what areas. From there, we build a pinning chart that supports your current needs and leaves room for future expansion — so adding new doors or access levels doesn't mean starting over. Our systems are compatible with major commercial lock brands including Schlage, Corbin Russwin, Yale, and Best.
Master key systems reduce the number of keys that managers need to carry while maintaining strict separation between departments, floors, or tenant spaces. We document every key cut and cylinder assignment in a key control chart that we hand over upon completion. Rekeying or expanding the system later is straightforward because the pinning structure is designed for it.
What's included
- Master key system audit and troubleshooting
- Re-pinning after staff changes
- Adding doors/users to an existing hierarchy
- Key control recommendations
Why customers choose us
- Fast dispatch and honest time estimates
- Upfront pricing before any work begins
- Professional tools and careful work
- Help across Westchester County and nearby areas
Frequently Asked Questions
What is a commercial master key system?
A master key system lets building managers open every lock with one master key while individual tenants, offices, or departments each have a key that only opens their own door. It simplifies access without compromising security.
Can you set up a master key system for an existing building?
Yes. We can repin your existing locks to work under a new master key hierarchy. In most cases the existing hardware is reused, saving you the cost of full lock replacement.
What's the difference between master key and grand master key?
A master key opens all locks in one group (e.g., one floor). A grand master key opens every lock in the entire building, spanning multiple groups. We design multi-level hierarchies for larger properties.
Is a master key system secure?
When designed properly, yes. We use restricted keyways and patented key blanks so unauthorized copies cannot be made. Each system is documented with a key chart for your records.
How much does a commercial master key system cost?
A commercial master key system starts at $349. The price depends on the number of locks, levels of access, and whether new hardware is needed.
Need Commercial Master Key System Service today?
Call +1 (929) 367-6689 for immediate help or request service online.
We called Alpha Locks for an emergency lockout at our store on a Sunday morning. They arrived fast and got us open without any damage. Highly recommend for any business.
Had them install a master key system for our office suite. Very organized, explained everything clearly, and the whole job was done in one visit. Great commercial locksmith.
Need help right now?
Call our 24/7 locksmith team at +1 (929) 367-6689 or request a service visit online.