How businesses can improve door security

The key control question

Ask yourself how many working keys to your premises exist, and who holds them. If you cannot answer within about ten seconds, you do not have key control — you have an assumption that has been accumulating exceptions for years.

Every staff departure is a key you hope came back. Every contractor, every cleaner, every previous tenant. None of it is anybody's fault; it is simply what happens without a system.

Master key systems

A master key system lets one key open many doors while each individual key opens only what its holder needs. A cleaner's key opens communal areas; a department key opens that department; a manager's key opens a branch; a grand master opens the site.

The valuable part is the design conversation before any hardware is touched — mapping who genuinely needs which door. It reliably surfaces access arrangements nobody had written down, including several that should not exist.

It also contains the damage when a key goes missing. Lose one departmental key and you re-pin that branch, not the whole building.

Restricted profiles

A hierarchy built on ordinary cylinders can be quietly undone by anyone who takes a key elsewhere and has more made. Restricted key profiles close that: the blanks are controlled, and additional keys are only issued through the authorised channel against proof of authority.

Without this, your hierarchy is only as tight as the least careful person holding a key. With it, the register you keep actually reflects reality.

The register

Which key, issued to whom, on what date, returned when. It is unglamorous and it is the part that makes everything else real.

Pick one person to own it and review it on a schedule — quarterly is enough for most businesses. A system nobody maintains degrades into exactly the problem it replaced, just with better hardware.

When to go electronic

Access control earns its cost where turnover is high, where you need entry logs, or where credentials must be withdrawn the moment somebody leaves. Revoking a tag takes seconds.

The comparison worth making is with what happens otherwise. Without it, a departing employee who does not hand a key back leaves you with a choice between hoping and a lock change across every door that key opened — which is why the cost of the system is best measured against how often that situation actually arises.

The critical decision when an electronic access control is installed is what each door does when power fails. Fail-safe unlocks, which is what an escape route needs. Fail-secure stays locked, which is what a store room needs. Getting that backwards produces either a door standing open during every outage or people trapped behind one.

Compliance for escape routes should be confirmed with your fire officer or building consultant, and correcting a door that fails it is normally a straightforward lock replacement. A locksmith can fit appropriate hardware and flag anything that looks wrong, but formal sign-off is not ours to give.

The doors that get ignored

Rear entrances, fire exits, delivery doors, roller shutter pedestrian doors and anything opening onto a service yard. These are consistently weaker than the front entrance because nobody looks at them.

High-traffic commercial doors also wear on a completely different timescale from domestic ones — hundreds of operations a day rather than a handful. Closers drift out of adjustment, and a door that no longer quite latches is a security problem long before anybody records it as a fault. Put your doors on a maintenance schedule rather than waiting for failure.

Office parks, suites and the key nobody can account for

The recurring problem in the office parks around Bryanston, Sunninghill and Woodmead is not a break-in. It is that nobody can answer a simple question: who can open this door today, and can anybody prove it?

Suites change hands, businesses grow, cleaning companies are replaced, contractors finish and move on. Each of those has held a key at some point, and unless the premises ran a restricted profile, each of them could have had a copy cut for a few rand with no record and nobody's permission.

Replacing cylinders every time somebody leaves is the expensive answer and it never finishes, because the next contractor restarts the cycle a fortnight later. The structural answer is a master key system on a restricted profile, which makes the question answerable rather than merely worrying.

Doors that are used forty times before lunch

A commercial door is a different animal from a domestic one, and the difference is wear rather than attack. It is heavier, usually on a closer, and it is operated more times in a week than a front door is in a year.

That makes scheduled attention worth far more than it is at home. A closer that has begun to let the door slam, a hookbolt needing a lift before it engages, a shutter lock starting to grate — all of those give weeks of notice, and all of them tend to be ignored until the morning the business cannot open.

That last scenario is the expensive one, because it converts a booked repair into an emergency callout plus lost trading. Caught early it is nearly always lock repair, and it can be done outside trading hours.

Fire routes, and the retrofit somebody added

There is one finding that turns up often enough in older commercial stock around here to be worth a paragraph of its own, and it is better discovered by a locksmith than by an inspection.

A door that must open from the inside without a key is not a place for a deadbolt somebody added because the closer had become slow, or because a suite was being used for storage that month. It happens, it is usually well-intentioned, and it is the sort of thing nobody notices until it matters.

Worth walking your own premises and checking. Every door on an escape route should open from the inside with a single action and no key, and correcting one that does not is normally a straightforward changing the lock rather than anything structural.

What to ask before signing for a system

Three questions separate a specification from a sales pitch, and none of them requires you to know anything about electronics.

Ask what each door does when the power fails, door by door, and ask for it in writing. Escape routes must unlock; store rooms and external entrances generally should not. Ask where the mechanical route into the building is and who holds it, because a purely electronic building is one long outage away from nobody being able to enter.

Then ask who is responsible for deactivating a credential when somebody leaves. If that answer is vague, the system will be back where it started within a year, with the hardware cost added. All three are covered on the access control in Bryanston page.

Where the money is best spent on commercial premises

The order matters as much here as it does on a house, and it is different from the domestic one because the threats are different.

Key control comes first, because on commercial premises the most likely person to open a door they should not is somebody who was legitimately given a key at some point. No cylinder addresses that. A restricted profile and a register does, and it is usually the cheapest item on the list relative to what it solves.

Then the doors that are not overlooked: rear entrances, delivery doors, anything opening onto a service yard or a quiet side street. Then the frames, which on older commercial stock are routinely the weakest part of a well-locked door. Electronics come after all of that, on the doors where traffic genuinely justifies them. Everything in that sequence sits under commercial locksmith work.

Out-of-hours work, and why it costs less overall

There is a piece of arithmetic worth doing before deciding when to have commercial work done, because the obvious answer is usually the expensive one.

Doing an installation during trading hours looks cheaper on the quote and rarely is. A reception door in pieces at ten on a Tuesday morning costs the business in interrupted work, in staff standing about, and occasionally in trade that walks away. An evening or weekend slot carries a higher labour rate and almost always costs less in total.

That is why out-of-hours installation is the normal arrangement for commercial premises rather than a special favour, and why it is worth asking for rather than accepting the first slot offered. Tell us the window that actually suits the business on the locksmith booking line and it gets booked into it.

Reviewing it once a year

Commercial security decays quietly rather than failing visibly, which is why an annual review is worth more on business premises than on a house.

Three things to check. The key register against reality: does the list of who holds what still match who works there? The credential list on any electronic system, for tags belonging to people who left. And the doors themselves — closers that have started letting doors slam, hookbolts needing a lift, anything on an escape route that has acquired hardware since the last look.

None of that takes long and all of it prevents the version where a departing employee, a seized shutter lock and a failed inspection arrive in the same quarter. It is normally folded into a visit for something else, and it is part of looking after commercial locksmith properly.