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Master Key Systems

Keying plans that let selected keys open selected doors, set up for buildings across the Atlanta area.

CoverageAtlanta metro area
AvailabilityOpen 24 hours a day, every day
Before workScope reviewed with you on site
To bookCall (866) 472-3979
Master Key Systems

How a Master Key System Works

A master key system lets one key open many doors while each user's key opens only their own. It is used in offices, multi-tenant buildings, schools, and managed residential property to reduce the number of keys people carry while keeping access controlled.

The technician works from a keying chart: which doors each person needs, who holds a master, and how the building may grow. The chart matters more than the hardware, because a poorly planned system is hard to expand later.

  • Our locksmiths come to your location
  • The job reviewed with you before work begins
  • Open 24 hours a day, every day
Technician fitting a lock to a glass entrance door of an office building
What It Covers

Master Key Jobs

New System Design

Building a keying chart from scratch for a building or suite.

Expanding an Existing System

Adding doors or users to a system that is already in place.

Re-pinning to a Chart

Converting compatible cylinders into a planned system.

Cylinder Replacement

Swapping incompatible cylinders so more doors can join the plan.

Restricted Keyways

Advice on keyways that limit where copies can be cut.

Key Control Records

A written record of who holds which key, kept for the building.

Worth a Look

Signs You May Need This Service

A master key conversation usually starts from one of these situations:

Too Many Keys on One Ring

Staff or facilities managers carrying a dozen or more separate keys is a common trigger for looking into a master system.

A Building Growing Beyond Its Original Plan

Additional suites, doors, or departments added over time often outgrow whatever informal keying was set up at the start.

Uncertainty About Who Has Access Where

Without a written key chart, it becomes difficult to know who can get into which doors, which is a problem a documented system solves.

A New Building or Renovation

New construction and major renovations are natural points to design a keying system from scratch rather than retrofit one later.

Mixed Hardware Brands Across Doors

Buildings that accumulated locks from different brands over the years often need cylinder work before a unified system is possible.

Concern Over a Lost Master Key

If a master key has gone missing, planning how the system responds is worth addressing before it becomes an active problem.

How It Works

What Happens When You Call

Call the Number

Reach our team at (866) 472-3979 and describe the lock, door, or vehicle and what is happening.

Share Your Location

Give your address or location so we can send a locksmith working that part of the metro.

Technician Reviews the Job

Before any work starts, the technician looks at the lock or vehicle and explains what the job involves.

Work Is Completed

Once you are clear on the scope, the technician carries out the lockout, rekey, repair, or installation.

Tweezers placing pins into a brass lock cylinder on a workbench during a rekey
Options

How the Chart Is Built

A keying chart maps every door in the building against every key that will exist, defining which keys open which doors and how many levels of master key sit above individual door keys. This is drafted before any cylinders are touched.

Systems can be simple, a single master plus individual keys, or layered with sub-masters for departments, floors, or building sections. The right structure depends on how the building is actually used day to day, not just its floor plan.

Restricted keyway hardware, which limits where blanks can be legally duplicated, is often part of a master system specifically to keep control over how many keys exist in circulation.

Local Detail

Master Key Systems in the Atlanta Area

Expand any of the sections below for the detail behind a visit.

Master Keying for Atlanta Properties

Multi-tenant office buildings and mixed-use developments common in corridors like Midtown and the Perimeter frequently need a master system that separates common-area access, shared by building staff, from individual suite access held only by that tenant. Property management companies overseeing several buildings across the metro often standardize on a single keyway and system structure across their portfolio, which makes rekeying and key issuance more consistent from site to site. For HOA and condo buildings, a master system covering amenity spaces, mechanical rooms, and common doors, separate from individual unit keys, is a frequent request from board members and management companies.

What the technician checks first on a master key systems visit

Before touching hardware the technician surveys which doors exist, what cylinders are fitted, and who currently needs access where. They check whether existing cylinders share a keyway and are in good enough condition to be re-pinned into a plan, and identify which doors would need new hardware to join. The keying chart is drafted and agreed before any cylinder is opened.

What to have ready before the technician arrives

Have a list or floor plan of the doors involved and a sense of the roles that need access: who should hold a master, who needs a department or floor level key, and who needs only their own door. Any existing key records are extremely useful, even if incomplete.

Plain English

Terms Worth Knowing

A few words that come up during this kind of visit, without the jargon.

Master key

A key that opens many doors in a planned system, while each individual key still opens only the door it was issued for.

Keyway

The shaped slot a key slides into. Locks generally have to share a keyway family before they can be keyed alike or master keyed.

Exit device

The push bar on a door along an exit path. It must release from the inside at all times, which is why it is serviced rather than disabled.

Door closer

The arm that pulls a door shut. If it is out of adjustment the door may not latch fully, leaving it unsecured despite appearing closed.

FAQ

Master Key Systems Questions

Can my current locks be master keyed?

Often, if they share a compatible brand and keyway and are in good condition. The technician checks each cylinder and identifies which doors need new hardware to join the system.

What happens if a master key is lost?

A lost master is a significant event, because it may open every door. Planning for that, through restricted keyways and a rekey path, is part of designing the system.

How far ahead should we plan?

Build the chart around the building as it may be in a few years, not just today, so new doors and roles can be added without rebuilding the system.

Do all doors need to be on the same brand of hardware?

Not necessarily, but keeping the keyed cylinders within a compatible family makes the system far easier to design and expand.

Can we add sub-masters for different departments?

Yes. Layered systems with department or floor-level sub-masters above individual door keys are a common structure for larger buildings.

How is key control tracked after installation?

The technician can leave a written record of the keying chart and who holds which level of key, which your team can maintain going forward.

Is a master key system only for large buildings?

No. Even a small office with a handful of doors can benefit from a simple master arrangement if multiple people need different levels of access.

How long does setting up a system take?

It depends on the number of doors and whether cylinders can be re-pinned or need replacing. The survey and chart come first; the physical work is scheduled once the plan is agreed.

Can we expand the system later?

Yes, if the chart was designed with growth in mind, which is why the planning stage matters more than the hardware. Retrofitting an unplanned system is considerably harder.

Call Our Team

Call and describe your situation and location, and one of our locksmiths serving your area will come out to you.

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