BBB Ethics Award Winner · AZ ROC Licensed (#271563) · 4 Phoenix Metro Shops

Master Keying

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.

master keying

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.

A Master Pinned Cylinder Has More Than One Shear Line

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.

Master-pinned lock cylinder diagram from ACME Locksmith

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

  • Avatar NG NG ★★★★★ 3 weeks ago
    Matt came to rekey two locks and replace two other locks. Matt was very professional, friendly and helpful. He got the work done efficiently and was very patient in explaining the lock features. Would highly recommend Matt and his company. … More
  • Avatar Ahmed Siddiqui ★★★★★ 4 months ago
    Got help from Erin after hours. He was very helpful and quick to respond and give a quote which is great to have when your locked out.
    The price is reasonable for after hours service on a weekend. It was a simple lock within a close radius
    … More of their working area. If it's electronic it's going to be more expensive, if it's outside the radius of their office it's going to be more expensive.
  • Avatar Michael Cronin ★★★★★ a month ago
    Ernie is an excellent full service locksmith with a real store! I drove up in my RV with 2 locked doors with no key. He opened them quickly and replaced the locks with new matching keys. I’ve done other business over the years with total … More satisfaction and fair prices.

Master Key System FAQ

What does a master key system cost?

Pricing varies with the type of door and lock and how many access levels you need, so the best estimate comes from a quick job walk. For smaller systems you can get a free master rekey estimate on our website.

Shrink Your Key Ring in Phoenix

We design the system, pin the locks, and document it. Call or schedule today.

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