Last Tuesday evening my 88 year old Fathers who has Alzheimers disease's boiler broke down and water was leaking .I rang 7pm ish to OVO energy re his heating cover.I was assured within 24 hours an engineer would come.I switched water and everything off , as I was so concerned.Dad luckily has a small gas fire in living room .The only room with heat .No one arrived and after speaking to some nice switchboard people we were assured different times and someone would be out .At approx 8.30 on Wednesday evening after another call ,I was told unfortunately Engineer couldn't come until next day.A lovely lady rang next morning and was monitoring.We were told 12-4 pm and later 4-6 an Enginner did come and he said two parts were needed and he would get heating back on but still leaking and a bucket was still necessary in cupboard for leak.To cut a long story short.We registered concern on Tuesday 28th of November and finally got it fixed on Monday evening the 4th of December.Pressure constantly dropping and having to empty bowls of water.Through this my Father missed a Christmas engagement we were attending which is good for his social engagement having Alzheimers.We had to borrow heaters for two days and I lost two days work whilst waiting in .Days I won't get paid for.Added to the confusion and upset for my Father who didn't understand .I am deeply disappointed in the service and am considering putting a complaint into the ombudsman.