Social Services are a good contact and if you ask they will arrange for someone to copout and assess his safety needs and maybe supply them.
My daughter had such an assessment and a care plan based on how much help she needed to carryon daily life. She has care provided by Social Services and they come in 3 times a day with 3 extra hours a week to help her with paperwork, Drs etc.
The bungalow has been made safe with grab rails everywhere to help her move around the place. She also wears a lifeline to call for help in an emergency or if she thinks she needs help.
The carers will wash her in the bathroom if she doesn't want a shower by her siting on a chair as mentioned. She washes and drys all the bits she can reach.
The carers come in 7 days a week all year long and she is happy which is the most important.
Goodluck with it all and I am sure if you just ask for help from everyone, Dr, Social Services, Age Concern etc you will find your way.
Good Morning Tuesday 23rd April St Georges Day