Permission will be needed although if they know you are getting professionals in they rarely have an objection unless you change how the room will function for any possible later tenants.
If you are installing the unit in the same place this will make the decision easier and the job cheaper.
PM us with details and we may even be able to assist with arrangements with your local authority.
We have just installed a walk in shower in place of a bath for an elderly lady who could no longer get into the bath.
Nucad Property Maintenance Services
Available for every job in and around the home from completing those small jobs that never seem to get done to complete house renovations !!.
'Professional and Quality Service - insured and guaranteed'