The batteries in your smoke alarm should be changed every year. Do you have the time, a ladder and do you remember? Well “Ken the Fixit Man” can set a periodic servicing agreement and do it all for you.
To ensure your circuit breaker (commonly called RCD) is working you should do a push button test every 12 months. This is not a big or difficult task but Ken The Fixit Man can program it in when he changes your smoke alarm battery.
While on site he can check the hot water pressure relief valve.