Commercial Rekeying: When to Schedule It and Why It Costs Less Than You Think

The Moment You Actually Need to Rekey

Most businesses do not think about rekeying until something goes wrong. An employee with key access is terminated under bad terms. A master key goes missing out of a drawer and nobody can say exactly when. A break-in happens and the door shows no sign of forced entry. By the time the call comes into our shop, there is already an active problem — and the fix is urgent, expensive, and stressful.

It does not have to work that way. Rekeying is one of the cheapest, fastest security upgrades a business can make, and scheduling it on your terms costs a fraction of what an emergency rekey costs when somebody is watching the clock.

What Rekeying Actually Is

Rekeying is not the same as replacing your locks. The hardware on the door stays. A locksmith pulls the lock cylinder, swaps out the internal pin stack to a new configuration, and cuts a new key that matches. Your old keys stop working. Your doorknobs and deadbolts look identical. The cost, per lock, is almost always lower than buying and installing new hardware.

For businesses on a master key system — front door, back door, office doors, storage room, and a master that opens everything — a rekey can preserve the whole hierarchy while changing every key that opens anything. That is a significant cost savings compared to reinstalling.

Five Times You Should Not Wait

Ownership changes. New building, new business, or new partner buying in — you do not know who walked out of here with a key over the last ten years. Rekey before you move in, not after.

Employee terminations at any access level. Even if HR collected the badge, a key can be copied at any hardware store for a few dollars. Rekey if the departure was contentious.

A missing master or submaster. One missing key with broad access is worse than ten missing keys to a single door. If a master is gone, treat it like the whole ring is compromised.

After a break-in, even an unsuccessful one. If the door shows no damage, a working key got used. That is worse than a broken window.

Routine turnover in a building where keys have been issued over many years. If nobody on your team can tell you how many physical keys exist to the front door, you do not have a locked building.

What It Costs

For a typical small commercial space — front and back doors plus a handful of interior cylinders — a planned rekey usually runs a few hundred dollars including the new keys. Emergency after-hours rekeys for the same work run significantly higher, because we are dropping what we were doing and showing up within the hour.

A master key system rekey costs more because we are redesigning the pin configuration from scratch, but for most offices it is still a small-dollar item compared to a full hardware replacement.

How to Plan It

Call your locksmith. Ask for a walk-through — we can usually do it in twenty minutes. We will note every cylinder that opens with a key, confirm which doors share keys today, and write up a sheet of what new keys you want cut and who should have them. From approval to done is usually one visit.

Red Obsidian Security handles commercial rekeys across Sioux Falls, Brandon, Harrisburg, Tea, and the surrounding communities. If you are reading this and realizing it has been longer than you can remember since your locks were rekeyed, that is the answer — schedule it. Call (605) 223-8100.