

Commercial · Woolwich
Access Control Installation
Head office wants a record of who opens the branch and when, tied to an actual name rather than a shared code scrawled on a sticky note taped under the till.
In plain words
A building already running an intrusion alarm or a camera system gains from an access control installation that speaks to them rather than sitting apart from them: an arm-and-disarm event that lines up with the person who unlocked the door, a camera clip tagged to a specific credential instead of a blank time stamp. The reader and the lock still do the physical work of the opening; the value is in how the record from that opening lines up with everything else the building already tracks.
How the visit goesAnother employee left and the keys never came back. You changed the locks again, cut copies for everyone who stayed, and paid for a job that repeats itself the next time someone quits, taking a working key out the door with them.
Access Control Installation
How the visit goes


Taking stock of what is already on the doors
Many commercial buildings already carry some kind of lock, from a plain keyed lever to an older keypad system nobody quite trusts anymore, and the survey starts by identifying exactly what that is. A working mechanical lock can often stay in place as the override once an electric strike or reader is added, saving a step; a failing or unsupported electronic lock is usually replaced outright rather than wired around. The locksmith also checks which doors currently share one key, since that pattern often explains why the business wants individual, revocable credentials in the first place.
Wiring the openings back to a controller
Each controlled opening can send and receive several signals: a reader reporting a presented credential, a lock output that releases the hardware, and, where the configuration calls for them, a door position switch reporting open or closed and a request-to-exit input. The locksmith runs the wiring from each opening back to wherever the controller is mounted — as a home run, along a shared bus, or over the network on an IP or PoE device — labels each conductor at both ends, and terminates them into the controller's input and output boards. A building with several openings may share one power supply and battery backup sized to the combined load, or split the load across more than one supply.
Keeping the mechanical override where it belongs
Where a controlled door has a mechanical override, that key is worth treating with the same care as any master key: held by a named person or two, not left in a drawer everyone can reach, and used mainly as a fallback rather than a daily habit. Because that key bypasses the electronic record entirely, using it routinely quietly undoes the audit trail the system was installed to provide, on any door where one is fitted. Keeping it for genuine emergencies is what keeps the electronic system the normal way in, and the key the backup it was meant to be.
Access Control Installation
In the van
Door position switches
Low-voltage cable
Keypad readers
Credential cards and fobs
Fire alarm interface relay

Access Control Installation
What affects the quote
The building's age and frame material
A modern hollow metal frame generally accepts new hardware with less adjustment than an older wood frame or a historic building, where matching the existing appearance and construction takes extra care.
Coordinating a shared or multi-tenant entrance
A shared lobby or parking entrance in a multi-tenant building needs agreement between the property manager and each tenant on which credentials belong where, and that coordination adds time beyond a single business's own doors.
How much door and frame preparation is needed
A frame that already suits an electric strike needs less preparation than one that must be mortised, reinforced, or matched with a different strike body, and an older or non-standard door can add its own preparation.
What to have ready
- Who in the business will manage the system once it is installed?
- Do you already have an alarm or camera system in place?
- Is this a single business, or a shared, multi-tenant building?
Access Control Installation: questions
QuestionsWhat information should we have ready before the visit?
It helps to know which doors should be controlled, roughly how many people will need a credential, whether any of those doors are also fire exits, and who in the business will administer the system afterward. A floor plan or a walk-through on site fills in anything easier to show than describe, and neither is required in advance.
What happens to our records if we later work with a different provider?
That depends on the platform: the entry log and configuration can live on a local controller and its on-site software, which stay with the business regardless of who installed them, or on a cloud-managed subscription service, where continued access and data export follow that provider's own terms. It is worth confirming at the time of installation which arrangement applies, so the business knows what happens to its records if it later changes providers.
Can the system be expanded to more doors later?
Yes. A system installed with some spare capacity in its controller and power supply can usually take another door or two by adding a reader and lock and wiring it back in. A door far from the existing wiring can instead run its own standalone unit. Either way, existing schedules and credentials do not need to be rebuilt from scratch.
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