I evicted my tenants and now they won't let agents in to do viewings: Can they go in without their permission?

The tenants will ignore the agents' messages suggesting times to show people around, or simply reply saying 'no'.

I evicted my tenants and now they won't let agents in to do viewings: Can they go in without their permission?
The tenants will ignore the agents' messages suggesting times to show people around, or simply reply saying 'no'.