Keypad Lock Installation
A keypad lock is only ever as reliable as the bolt it drives, which is why the strike gets more attention during fitting than the keypad does.
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Keypad locks split into two families that look alike on the door. A mechanical pushbutton lock is a stack of levers with no electronics and no battery, holding one code that is changed by opening the lock or using a code-change tool. An electronic keypad stores codes in memory and either drives the bolt with a small motor or releases a clutch so your hand can turn it, and it runs on batteries.
Knowing which one you are buying matters because they fail differently. A mechanical unit slowly wears its buttons and keeps the code you gave it. An electronic unit gives you several codes, a temporary one for a dog walker or a cleaner, an audit of nothing at all, and a battery that will pick its own morning to die.
What is checked during the fit
- Whether the bolt moves without resistance. A motorised deadbolt has a fraction of the force in your wrist, so a bolt that needs the door pulled towards you to throw will stall a keypad lock and flatten its batteries trying.
- Strike alignment, corrected properly rather than by enlarging the strike hole until the bolt happens to find its way in. Motorised hardware is the least forgiving thing you can hang on a lazy strike.
- Which face the pad sits on, and whether the inside needs a plain thumbturn or a second keypad of its own.
- Weather exposure. A pad in hard afternoon sun or driving rain with no overhang above it ages faster, and some units are only intended for a sheltered position.
- Whether there is a mechanical override, and if there is, that the override key is cut, tested in the lock, and stored somewhere off the property.
Decide these before the lock is fitted
- How many separate codes you need, and who each one belongs to.
- Whether the door should lock itself after a delay, or only when somebody chooses to lock it.
- Whether anyone using the door has trouble with small buttons or with recalling a sequence under pressure.
- What the plan is when the batteries go flat, and where the override key is going to live.
- Whether the same door also has to work with a physical key for a relative or a service visit.
If you want to check the door from your phone, hand out access remotely, or see a record of who came in and when, a keypad on its own does none of that. see smart lock installation.
Common questions
What happens when the batteries die?
Most electronic keypads warn for a long time first, with a beep or a flashing indicator at every entry, and many carry external contacts that let a fresh battery be held against them for long enough to power the lock and enter a code. The models with no override at all are exactly why a mechanical key kept off site is still worth having.
Can someone work out my code from the buttons?
Over time, yes, and it is the most practical way a keypad is defeated. Four buttons that are visibly cleaner, worn or smudged narrow the possibilities enormously. Changing the code occasionally and wiping the pad down does more for you than adding another digit.
Is a keypad safer than a key?
It removes the risks that belong to keys — copies you never authorised, one under a mat, one that walked off with a former housemate — and adds the risks that belong to codes, which get shared casually and almost never changed. The bolt, the strike and the frame are still what anyone forcing the door actually meets.
Does a keypad lock need wiring?
Residential keypad deadbolts are battery powered and need no wiring whatsoever. Wired keypads belong to access control, where the reader on the wall is a separate device from the lock, with a controller and a power supply behind it doing the deciding.
Related locksmith services
Describe the lock or key problem
A short description of what happened gets the right tools on the vehicle.
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