What Does a Commercial Locksmith Do?

Securing a business is a different job from securing a home. The doors take far more use, far more people hold keys, the premises often span many doors or several sites — and, crucially, there are legal duties around fire escape and accessibility that simply do not apply to a front door. This guide is an overview of what commercial locksmithing actually covers, for business owners, facilities managers, landlords and managing agents deciding how to protect a property.

How commercial security differs from domestic

Four things set commercial work apart. Wear: a shop or office door cycles hundreds of times a day, so hardware has to be graded for heavy duty, not domestic use. Keyholders: where a home has a handful of keys, a business may have dozens of staff needing different access — which makes controlling keys a discipline in itself. Legal duty: a workplace must let people escape in a fire, which constrains how you may lock a door. And scale: multiple doors, zones and sometimes sites have to work as one coherent system. Get those right and the premises are both secure and compliant.

Commercial-grade locks and doors

The marks that matter are the same ones we decode in our guide to lock security grades — but commercial hardware is built to higher duty cycles and corrosion ratings, and is chosen for how often it will be used as much as for attack resistance. Restricted or patented cylinders (where keys cannot be copied without authorisation) come into their own here, and reinforced doorsets and certified locks protect higher-value or higher-risk premises. The principle is the same as at home; the specification is heavier.

Fire and emergency exit hardware — the legal bit

This is where commercial work becomes a duty, not a choice. An escape door must open with a single action — no key, no code, no special knowledge — and must keep working even if the power fails. Two standards govern the hardware: BS EN 1125 covers panic exit devices (the horizontal push bar) for public buildings where a crowd unfamiliar with the exit might panic; BS EN 179 covers emergency exit devices (a lever or push pad) for places where the people are familiar with the way out. Where doors are also electronically controlled, the exit hardware must always override the lock. You may control who comes in; you may never stop people getting out.

Controlling who goes where

Once a building has more than a few doors and users, you need a way to manage access without handing everyone a fistful of keys. There are two routes, and many premises use both. A master key suite is the mechanical answer — one structured set of keys where a master opens everything and sub-keys open only their own areas, explained in our guide to master key systems. Electronic access control — fobs, cards and keypads — is the digital answer, with the flexibility to change permissions instantly and log who went where, covered in access control systems. For shared and communal entrances, see communal door entry systems.

Surveys, maintenance and compliance

Commercial security is not a one-off purchase. It starts with a survey — mapping doors, escape routes, zones and risks — and continues with planned maintenance, because exit hardware and access systems need regular checks and servicing, with records kept for fire and insurance purposes. Where access control stores fob IDs, card data or entry logs, that is personal data under UK GDPR, so it must be handled properly. A reliable locksmith partner does not just fit hardware; they keep it working and compliant. Our business security essentials guide covers the wider picture.

Where we come in

LocksmithLocal works with businesses, landlords and managing agents across the network — surveying premises, fitting commercial-grade locks and compliant exit hardware, designing master key suites and access control, and maintaining it all. Whether you run one shop or an estate of buildings, find your local locksmith to arrange a commercial security survey.