Master Key System Done Right the First Time
A master key system lets a property manager, owner or maintenance staff open every door with one key while each tenant or employee has a key that opens only their own space. Alameda Locksmiths designs, installs and maintains master key systems for apartment buildings, office suites, medical offices, schools and churches across Alameda.
We map the property, group doors by access level, and pin every cylinder so the system works exactly as planned with no accidental cross keying. Systems can include a grand master for ownership, sub masters for departments or floors, and change keys for individual doors. We keep secure records so future additions fit the plan. Many customers combine this with our Keyless Entry Locks service and our Access Control Systems service.
For higher control we build master systems on restricted keyways so tenants cannot copy keys. When a master key is lost we can rekey the affected level without starting over.
What Master Key System Service Includes
- System design mapped to floors, departments or units
- Grand master, master and change key levels
- Pinning of every cylinder with no cross keying
- Restricted keyways to prevent tenant copies
- Secure records for future additions
- Rekey of a single level when a master is lost


Common Situations We Handle
- Apartment building where the manager carries a ring of forty keys
- Medical office with records rooms that need limited access
- School or church with many volunteers and staff
- Office suite expanding into new rooms
Serving Alameda and the East Bay
Master Key System service is available across the island of Alameda, including the West End, Park Street, the Gold Coast, Bay Farm Island and Alameda Point, and in every surrounding city we cover from Oakland and Berkeley down to San Leandro and Hayward and out to the Tri-Valley. The same trained technicians, the same stocked vans and the same upfront pricing apply wherever you are.
How to Book Master Key System Service
Call (510) 240-7106 and tell us where you are and what happened. We confirm the price, give you an arrival window and send a fully equipped technician. Our dispatch line is open 24 hours a day, every day of the year.
