
Phoenix Master Key Systems
Master Key System Installation – Serving Phoenix
One key for the building, with the right access for every person. Designed, pinned, and documented.
Master Key System Installation for Phoenix Businesses
ACME Locksmith designs and installs master key systems across the Phoenix metro. We are a licensed, veteran-owned company, in business since 1997, with four valley shops and more than 170,000 jobs completed, and we have built systems for buildings with over 400 doors and corporations with multiple locations. A locksmith master key system lets one key open every door while each person carries only the key for the doors they are allowed to use. We map the access, pin the cylinders, and keep a key chart so future changes never open the wrong door. We serve Phoenix, Mesa, Scottsdale, Gilbert, and the Valley.
How a Master Key System Works
Access by level, so people only open what they should.

One key for owners
Senior staff and owners carry a single master key that opens every deadbolt, door lock, padlock, and storage room across the building.

Department-level keys
Department heads get a key that opens every door in their area, and nothing outside it. The owner’s master still opens those same doors.

Individual office keys
Staff carry a key to their own office only. Three clean levels: office, department, and master, with as many tiers as you need.

Pinned Right, Documented for Life
A standard cylinder has one shear line and works with one key. To master a lock, we add master pins that create extra shear lines so more than one key turns the cylinder. Add the right pins and a single door can work with several keys, which is what makes building-wide access possible.
Stacking shear lines can accidentally let one door’s key open another. We design every system in software that calculates the cuts for hundreds of keys so that never happens, and we keep a key chart so future keys stay clean. In most cases no new door hardware is required.
Why Businesses Master Key
Fewer keys to carry
Managers, security, and cleaning crews carry one key instead of a heavy ring, so doors stop getting left unlocked.
Access by authority
People enter only the doors they are authorized for, and everything stays locked after hours.
Easy turnover
When someone leaves, you only rekey the doors they could open. A restricted key system can remove even that.
Restricted keyways
Add patent-protected keys so no one copies a building key at a hardware store.
Multi-location ready
Add a tier per site: one building key, one campus key, one master across them all.
Padlocks included
Tie padlocks and storage into the same system so the master runs those too.
Rekeying after a move-in, turnover, or theft? See rekey service for homes and commercial locksmith services for full building security.
Serving the Phoenix Valley
We serve the entire Phoenix Valley from four shops: Phoenix, Mesa, Scottsdale, and Gilbert, with mobile service across the metro.
What Phoenix Businesses Say
Master Key System FAQ
What is a master key system?
A keying setup where one master key opens many doors while each person’s key opens only the doors they need. It is built by adding master pins to the cylinders so more than one key can turn each lock.
Do I need to buy new locks?
Usually no. In most cases we rekey your existing cylinders into the master system. The exceptions are very old buildings with mixed hardware or adding padlocks to the same key.
What happens when an employee leaves?
You only rekey the doors that person could open. If they were a department head, we rekey that department. A restricted key system can avoid rekeying altogether.
Can one key accidentally open the wrong door?
Not when it is designed properly. We use software that calculates the cuts for hundreds of keys and keep a key chart so new keys never open doors they should not.
How big a system can you build?
We have built master systems for buildings with over 400 doors and corporations across multiple locations, adding a key tier for each site.
What does a master rekey cost?
The cost to master a commercial businesses vary highly depending on the type of door the type of lock and how many levels you are adding to the master key system. To get the most accurate estimate, it is best bet is to have a job walk performed. For smaller systems, you can get a free estimate for master rekeying on our website.
Shrink Your Key Ring in Phoenix
We design the system, pin the locks, and document it. Call or schedule today.
