As a heads up, just in case you decide to take the alarm out yourself.
Even if the keypad appears to be unpowered, the main alarm box may well still be active. Years ago, in a new flat, I tried to disconnect the alarm which set it off because they have tamper proof mechanisms. Unfortunately, well fitted alarms tend to be wired to power before the consumer unit in a way that the cabling is hidden so that a burglar cannot simply snip cables or kill power to the whole house to turn the alarm off.
We ended up having our alarm going off for about four hours before we managed to find somebody who was able to help us kill it. Not good for a laugh, or for your ears.
I'm not sure that an alarm could or should be wired before the consumer unit. It would need to have some kind of consumer unit/breaker itself to protect the circuit. Most of the alarms I've seen are connected via a fused spur from a separate breaker on the main consumer unit.
As a heads up, just in case you decide to take the alarm out yourself.
Even if the keypad appears to be unpowered, the main alarm box may well still be active. Years ago, in a new flat, I tried to disconnect the alarm which set it off because they have tamper proof mechanisms. Unfortunately, well fitted alarms tend to be wired to power before the consumer unit in a way that the cabling is hidden so that a burglar cannot simply snip cables or kill power to the whole house to turn the alarm off.
We ended up having our alarm going off for about four hours before we managed to find somebody who was able to help us kill it. Not good for a laugh, or for your ears.