I would go for something like:
Patients would very much appreciate the opportunity to have therapy/treatment at home
Or maybe:
The provision of therapy at home would be very much appreciated by patients
As johngiovanni said, the use of therapy/treatment etc depends on the nature of the service provided.
You can use 'domiciliary therapy' as well, but not as a countable noun. That is, there is no such thing as "a domiciliary therapy", "two domiciliary therapies" etc.