Can I use a radiator cover with my tado valves attached
Only way of knowing is to try one.
The main issue would be communication with the hub, if you have that then they will work.
only thing then is the enclosed space and whether the heat. In the cabinet shuts the valve off early?
You can, but would then need to use a Smart thermostat as a room sensor. This is supported, but may need to be configured by our support during the installation.
Thank you to everyone who answered my query. The wife will have to live with the radiators as they are