Should I disconnect house alarm?

[StuntNun]

My house has an alarm system that hasn't worked since I moved in, however it is drawing power. If I switch off the power to the alarm system then the alarm is triggered, so I have had it running ever since moving in, despite the fact that it is completely useless. If I get up in the night I can hear the electrical hum from the alarm system however I have no idea how much power it's using as my smart meter doesn't appear to be of any functional use. Would it be worth the cost of getting someone out to disconnect the alarm, i.e. is it likely to be cheaper to leave the house alarm system running or cheaper to pay someone to turn it off?

I would get it sorted rather than switch it off.

I took the fuse out of mine not long after I moved in as the previous occupants didn't leave us the code and it went of in a power cut. Turns out the back up batteries were flat so that solved my problem.

Supposedly an alarm costs on average 75kwh a year to run (it'll say the exact wattage somewhere on the unit), so assuming 30p a kWh, you're looking at around £22 a year to run. I think that's the high end as you're just running the alarm unit by the sounds of things.

Is there not a fuse or switch for the alarm itself on the main fuse box?

Disconnecting it, you really want to do from the fuse box end and not the alarm end to be honest as you'd leave a live cable there otherwise. You might be able to find the internal cable in the attic depending on where it's mounted.

@AdoraBell I don't know much about house alarms but I have pet cats which I assume would trigger it all the time.

Thanks for that info @PuddlesOnFire It's become much more noisy lately so I can hear it whirring at night. I wonder if that means it's using more power.

If its not working anyway, then you either pay to get it fixed and usable (if you want to use it) or get it disconnected.

Ah, pesky cats, much like my pesky dogs. Does the alarm have zones you can choose to have on or off? And would you cats stay in 1 room when you are out?